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  <element id="aaoi_IncreaseDecreaseInLeaseLiability" name="IncreaseDecreaseInLeaseLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="aaoi_ConvertibleDebtTextBlock" name="ConvertibleDebtTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_DebtInstrumentConvertibleConversionPremium" name="DebtInstrumentConvertibleConversionPremium" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_SummaryOfWeightedAverageRemainingLeaseTermsAndDiscountRatesTableTextBlock" name="SummaryOfWeightedAverageRemainingLeaseTermsAndDiscountRatesTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_SummaryOfCashFlowInformationTableTextBlock" name="SummaryOfCashFlowInformationTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_DebtInstrumentFixedChargeCoverageCovenantPercentageOfUtilization" name="DebtInstrumentFixedChargeCoverageCovenantPercentageOfUtilization" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_DebtInstrumentFixedChargeCoverageCovenantPeriodOnWhichUtilizationWillNotApplyStartDay" name="DebtInstrumentFixedChargeCoverageCovenantPeriodOnWhichUtilizationWillNotApplyStartDay" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_DebtInstrumentFixedChargeCoverageCovenantPeriodOnWhichUtilizationWillNotApplyEndDay" name="DebtInstrumentFixedChargeCoverageCovenantPeriodOnWhichUtilizationWillNotApplyEndDay" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_WeightedAverageRemainingLeaseTermAndDiscountRateForOperatingLeasesAbstract" name="WeightedAverageRemainingLeaseTermAndDiscountRateForOperatingLeasesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_SupplementalCashFlowInformationRelatedToOperatingLeasesAbstract" name="SupplementalCashFlowInformationRelatedToOperatingLeasesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_FarEasternCreditFacilityMember" name="FarEasternCreditFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_ChinaMerchantsCreditLineMember" name="ChinaMerchantsCreditLineMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_SpdCreditFacilityMember" name="SpdCreditFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_OneYearFixedTermTimeDepositsRateMember" name="OneYearFixedTermTimeDepositsRateMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_ThirdAmendmentToLoanAgreementMember" name="ThirdAmendmentToLoanAgreementMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_Taifx3Member" name="Taifx3Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="aaoi_LeaseInterestRateEffectivePercentage" name="LeaseInterestRateEffectivePercentage" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="aaoi_SaleLeasebackTransactionMonthlyLeasePayments" name="SaleLeasebackTransactionMonthlyLeasePayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="aaoi_SaleLeasebackTransactionPrice" name="SaleLeasebackTransactionPrice" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
</schema>
