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  <xsd:element abstract="true" id="fnsr_CashFlowParentheticalAbstract" name="CashFlowParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_CashPaidDuringPeriodConversionOfConvertibleSecurities" name="CashPaidDuringPeriodConversionOfConvertibleSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ChinaloanMember" name="ChinaloanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ClosingStockPricePerShare" name="ClosingStockPricePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_CommitmentsAbstract" name="CommitmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_CommonStockOfferingsAbstract" name="CommonStockOfferingsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_CommonStockReservedForConversionOfConvertibleNotes" name="CommonStockReservedForConversionOfConvertibleNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_CommonStockSubjectToFutureIssuanceAbstract" name="CommonStockSubjectToFutureIssuanceAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ConcentrationOfCreditRiskPolicyPolicyTextBlock" name="ConcentrationOfCreditRiskPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ConcentrationRiskNumber" name="ConcentrationRiskNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ConsignmentInventory" name="ConsignmentInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ConvertibleDebtConversionPriceConsecutiveTradingDaysAboveMinimumPercentageWithinTradingPeriod" name="ConvertibleDebtConversionPriceConsecutiveTradingDaysAboveMinimumPercentageWithinTradingPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ConvertibleDebtConversionPriceThresholdPercentageMinimum" name="ConvertibleDebtConversionPriceThresholdPercentageMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ConvertibleDebtDisclosureTextBlock" name="ConvertibleDebtDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ConvertibleSeniorNotesDue2010Fiscal2011Member" name="ConvertibleSeniorNotesDue2010Fiscal2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ConvertibleSeniorNotesDue2029FiscalYear2030Member" name="ConvertibleSeniorNotesDue2029FiscalYear2030Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ConvertibleSeniorSubordinatedNotesAndConvertibleSubordinatedNotesDue2012Fiscal2011Member" name="ConvertibleSeniorSubordinatedNotesAndConvertibleSubordinatedNotesDue2012Fiscal2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ConvertibleSeniorSubordinatedNotesMember" name="ConvertibleSeniorSubordinatedNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ConvertibleSubordinatedNotesDue2010FiscalYear2011Member" name="ConvertibleSubordinatedNotesDue2010FiscalYear2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_CostAndEquityMethodInvestmentsAbstract" name="CostAndEquityMethodInvestmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_CostMethodInvestmentNumberOfCompanies" name="CostMethodInvestmentNumberOfCompanies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_CostMethodInvestmentsNumberOfInvestmentsSold" name="CostMethodInvestmentsNumberOfInvestmentsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_CostsAssociatedWithSaleOfDiscontinuedOperations" name="CostsAssociatedWithSaleOfDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_CustomerBMember" name="CustomerBMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_CustomerCMember" name="CustomerCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_CustomerMember" name="CustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DebtConversionConvertedInstrumentCashPaid" name="DebtConversionConvertedInstrumentCashPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DebtInstrumentConvertibleOriginalConversionPrice" name="DebtInstrumentConvertibleOriginalConversionPrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxAssetsAcquiredIntangibles" name="DeferredTaxAssetsAcquiredIntangibles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxAssetsGainLossOnInvestmentsUnderEquityOrCostMethod" name="DeferredTaxAssetsGainLossOnInvestmentsUnderEquityOrCostMethod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxAssetsPropertyPlantAndEquipment" name="DeferredTaxAssetsPropertyPlantAndEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxAssetsTaxDeferredExpenseEmployeeStockOptionDeductions" name="DeferredTaxAssetsTaxDeferredExpenseEmployeeStockOptionDeductions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxLiabilitesAcquiredIntangibles" name="DeferredTaxLiabilitesAcquiredIntangibles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DeferredTaxLiabilitiesTaxBasisDifferenceOnConvertibleDebt" name="DeferredTaxLiabilitiesTaxBasisDifferenceOnConvertibleDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DefinedContributionInEntityStockExpense" name="DefinedContributionInEntityStockExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DefinedContributionInEntityStockExpenseIncludingPriorYearAccrual" name="DefinedContributionInEntityStockExpenseIncludingPriorYearAccrual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent" name="DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DefinedContributionPlanMaximumEmployeeAnnualContributionPercent" name="DefinedContributionPlanMaximumEmployeeAnnualContributionPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DefinedContributionPlanMaximumStatutoryContributionByEmployeeAmount" name="DefinedContributionPlanMaximumStatutoryContributionByEmployeeAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_DenominatorAbstract" name="DenominatorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DigitalSignalDistance" name="DigitalSignalDistance" nillable="true" substitutionGroup="xbrli:item" type="num:lengthItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DigitalSignalSpeed" name="DigitalSignalSpeed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_DiscountPurchaseOfCommonStockOfAcquiringCompanyPercent" name="DiscountPurchaseOfCommonStockOfAcquiringCompanyPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_DisposalGroupIncludingDiscontinuedOperationsDeferredRevenue" name="DisposalGroupIncludingDiscontinuedOperationsDeferredRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_EffectOfDilutiveSecuritiesOnNumeratorAbstract" name="EffectOfDilutiveSecuritiesOnNumeratorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_EffectiveIncomeTaxRateReconciliationGainOnConvertibleNote" name="EffectiveIncomeTaxRateReconciliationGainOnConvertibleNote" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_EffectiveIncomeTaxRateReconciliationNondeductibleInterestExpense" name="EffectiveIncomeTaxRateReconciliationNondeductibleInterestExpense" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_EffectiveIncomeTaxReconciliationDebtConversion" name="EffectiveIncomeTaxReconciliationDebtConversion" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_EmployeeStockOptionPlanAbstract" name="EmployeeStockOptionPlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_EmployeeStockOptionPlanMember" name="EmployeeStockOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_EmployeeStockPurchasePlanAbstract" name="EmployeeStockPurchasePlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_EmployeeStockPurchasePlanMember" name="EmployeeStockPurchasePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ExpensesInConnectionWithExchangeOffersRecordedAsLossOnDebtExtinguishment" name="ExpensesInConnectionWithExchangeOffersRecordedAsLossOnDebtExtinguishment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ExtinguishedDebtPercentageOfTotalConvertibleDebt" name="ExtinguishedDebtPercentageOfTotalConvertibleDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_FairValueByBalanceSheetGroupingDisclosureTextBlock" name="FairValueByBalanceSheetGroupingDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_FairValueEstimateUsingIncomeApproachKeyAssumptionsDiscountRate" name="FairValueEstimateUsingIncomeApproachKeyAssumptionsDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_FairValueOfConsiderationTransferredAndContingentConsiderationDetailsAbstract" name="FairValueOfConsiderationTransferredAndContingentConsiderationDetailsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_FiRaPhotonicsMember" name="FiRaPhotonicsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_FinancialInformationByQuarterUnauditedAbstract" name="FinancialInformationByQuarterUnauditedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_IgnisAsaMember" name="IgnisAsaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_InProcessResearchAndDevelopmentMember" name="InProcessResearchAndDevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_IncomeTaxLineItems" name="IncomeTaxLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_IncomeTaxTable" name="IncomeTaxTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_InterestExpenseTableTextBlock" name="InterestExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_InternalUseSoftwareBacklogAndInProcessResearchAndDevelopmentMember" name="InternalUseSoftwareBacklogAndInProcessResearchAndDevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_InventoryWriteBack" name="InventoryWriteBack" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_InventoryWriteDownNet" name="InventoryWriteDownNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_IssuerDefendantsMember" name="IssuerDefendantsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_JdsuemcoreMember" name="JdsuemcoreMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_KoreanLoansGroup1Member" name="KoreanLoansGroup1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_KoreanLoansGroup2Member" name="KoreanLoansGroup2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_KoreanLoansMember" name="KoreanLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LegalSettlementDeferredRevenue" name="LegalSettlementDeferredRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_LiabilitiesTransferredAbstract" name="LiabilitiesTransferredAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LineOfCreditFacilityMaturityTerm" name="LineOfCreditFacilityMaturityTerm" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LitigationSettlementInterestEarned" name="LitigationSettlementInterestEarned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LitigationSettlementPastDamages" name="LitigationSettlementPastDamages" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LitigationSettlementPastDamagesPlusInterest" name="LitigationSettlementPastDamagesPlusInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_LitigationTypeAxis" name="LitigationTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_LitigationTypeDomain" name="LitigationTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_LossContingencySettlementAgreementConsideration1" name="LossContingencySettlementAgreementConsideration1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_MalaysianLoan1Member" name="MalaysianLoan1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_MalaysianLoan2Member" name="MalaysianLoan2Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_MalaysianLoanMember" name="MalaysianLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_MandatoryRedemptionPricePerStockholderRight" name="MandatoryRedemptionPricePerStockholderRight" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_MinimumOwnershipPercentageOfVotingSharesTriggeringRightToEffectCompulsoryAcquisitionOfNoncontrollingInterestOwnersSharesUnderNorwegianSecuritiesTradingAct" name="MinimumOwnershipPercentageOfVotingSharesTriggeringRightToEffectCompulsoryAcquisitionOfNoncontrollingInterestOwnersSharesUnderNorwegianSecuritiesTradingAct" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_MinorityInvestmentsAbstract" name="MinorityInvestmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_NetIncomePerShareAbstract" name="NetIncomePerShareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_NewProductOneMember" name="NewProductOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_NewProductTwoMember" name="NewProductTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_NorwegianLoansMember" name="NorwegianLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_NumberOfBanksThatMakeUpOutstandingLoanBalance" name="NumberOfBanksThatMakeUpOutstandingLoanBalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_NumberOfHighSpeedOpticalChannels" name="NumberOfHighSpeedOpticalChannels" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_NumberOfQuarterlyInstallments" name="NumberOfQuarterlyInstallments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_NumberOfReportableSegments" name="NumberOfReportableSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_NumberOfSignificantCustomers" name="NumberOfSignificantCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_NumberOfSignificantCustomersIndividuallyRepresentingMoreThanTenPercentOfTotal" name="NumberOfSignificantCustomersIndividuallyRepresentingMoreThanTenPercentOfTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_NumberOfSubsidiariesOperatedByEntity" name="NumberOfSubsidiariesOperatedByEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_NumeratorAbstract" name="NumeratorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OfficeEquipmentFurnitureAndFixturesMember" name="OfficeEquipmentFurnitureAndFixturesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_OperatingLeasesFutureMinimumPaymentsDueYearsTwoAndThree" name="OperatingLeasesFutureMinimumPaymentsDueYearsTwoAndThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_OperatingLeasesMinimumPaymentsDueYearsFourAndFive" name="OperatingLeasesMinimumPaymentsDueYearsFourAndFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_OplinkPatentLitigationMember" name="OplinkPatentLitigationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeEightMember" name="OptionExerciseRangeEightMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeFiveMember" name="OptionExerciseRangeFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeFourMember" name="OptionExerciseRangeFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeNineMember" name="OptionExerciseRangeNineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeOneMember" name="OptionExerciseRangeOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeSevenMember" name="OptionExerciseRangeSevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeSixMember" name="OptionExerciseRangeSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeTenMember" name="OptionExerciseRangeTenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeThreeMember" name="OptionExerciseRangeThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionExerciseRangeTwoMember" name="OptionExerciseRangeTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OptionsOutstandingAbstract" name="OptionsOutstandingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_OtherAccruedLiabilitiesAbstract" name="OtherAccruedLiabilitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_OwnershipTriggerPercentageForShareholderRightsPlan" name="OwnershipTriggerPercentageForShareholderRightsPlan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_PendingLitigationAbstract" name="PendingLitigationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_PercentageOfPrincipalAmountToBePaidInRedemption" name="PercentageOfPrincipalAmountToBePaidInRedemption" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_PeriodOfTradingDaysThatIncludesDateOfNoticeOfRedemption" name="PeriodOfTradingDaysThatIncludesDateOfNoticeOfRedemption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ProceedsFromIssuanceOfCommonStockGross" name="ProceedsFromIssuanceOfCommonStockGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ProceedsFromIssuanceOfCommonStockNet" name="ProceedsFromIssuanceOfCommonStockNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_PurchaseCommitmentsAbstract" name="PurchaseCommitmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_PurchasedTechnologyNet" name="PurchasedTechnologyNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_Q22012ArbitrationMember" name="Q22012ArbitrationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ReceivablesThoughtUncollectibleCollectedResultingInGoodwillAdjustment" name="ReceivablesThoughtUncollectibleCollectedResultingInGoodwillAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_RelatedPartyTransactionRestrictedStockUnitsGrantedToRelatedParty" name="RelatedPartyTransactionRestrictedStockUnitsGrantedToRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_RelatedPartyTransactionRestrictedStockUnitsGrantedToRelatedPartyFairValue" name="RelatedPartyTransactionRestrictedStockUnitsGrantedToRelatedPartyFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_RelatedPartyTransactionVestingRateOfRestrictedStockUnits" name="RelatedPartyTransactionVestingRateOfRestrictedStockUnits" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_RestOfWorldMember" name="RestOfWorldMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_ResultsFromDiscontinuedOperationsAbstract" name="ResultsFromDiscontinuedOperationsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_RevolvingCreditFacilityTextBlock" name="RevolvingCreditFacilityTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ScheduleOfConvertibleDebtTableTextBlock" name="ScheduleOfConvertibleDebtTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsResultsOfDiscontinuedOperationsTableTextBlock" name="ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsResultsOfDiscontinuedOperationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ScheduleOfFairValueOfConsiderationTransferredInBusinessCombinationTableTextBlock" name="ScheduleOfFairValueOfConsiderationTransferredInBusinessCombinationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ScheduleOfGainOnSaleOfDiscontinuedOperationsTableTextBlock" name="ScheduleOfGainOnSaleOfDiscontinuedOperationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_SecuritiesClassActionMember" name="SecuritiesClassActionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_SeriesRpPreferredStockMember" name="SeriesRpPreferredStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_SettledAndDismissedLitigationAbstract" name="SettledAndDismissedLitigationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualPercentageIncreaseInSharesAuthorized" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualPercentageIncreaseInSharesAuthorized" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueOfGrantsInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateFairValueOfGrantsInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingAggregateIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantEmployeeStockOptionPlans" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantEmployeeStockOptionPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantEmployeeStockPurchasePlan" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantEmployeeStockPurchasePlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAndInMoneyNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAndInMoneyNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePriceOfCommonStockPercent" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePriceOfCommonStockPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_SourcePhotonicsMember" name="SourcePhotonicsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_StandardProductWarrantyAccrualPaymentsAndExpirations" name="StandardProductWarrantyAccrualPaymentsAndExpirations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="fnsr_StandardProductWarrantyTerm" name="StandardProductWarrantyTerm" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_StockIssuedDuringPeriodAdditionalSharesConversionOfConvertibleSecurities" name="StockIssuedDuringPeriodAdditionalSharesConversionOfConvertibleSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_StockIssuedDuringPeriodNumberOfSharesForPaymentOfAccruedInterest" name="StockIssuedDuringPeriodNumberOfSharesForPaymentOfAccruedInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_StockOfferingPricePerShare" name="StockOfferingPricePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="fnsr_StockOptionMaximumTerm" name="StockOptionMaximumTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_StockholderRightsPlanAbstract" name="StockholderRightsPlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_SubsidiaryOwnershipPercentage" name="SubsidiaryOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_SummaryOfSignificantAccountingPoliciesAbstract" name="SummaryOfSignificantAccountingPoliciesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_SwedishLoanMember" name="SwedishLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_TransitionServicesAgreementMember" name="TransitionServicesAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_UnderwriterDefendantsMember" name="UnderwriterDefendantsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="fnsr_UndistributedEarningsOfForeignSubsidiaries" name="UndistributedEarningsOfForeignSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="fnsr_WeightedAverageAssumptionsForOptionGrantsAbstract" name="WeightedAverageAssumptionsForOptionGrantsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="fnsr_WellsFargoFoothillLlcMember" name="WellsFargoFoothillLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
