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	  <link:definition>00000046 - Disclosure - 11. Share-Based Compensation (Details-Option activity)</link:definition>
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	  <link:definition>00000047 - Disclosure - 11. Share-Based Compensation (Details-Restricted Stock Units)</link:definition>
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	  <link:definition>00000048 - Disclosure - 11. Share-Based Compensation (Details-Share based compensation expense)</link:definition>
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	  <link:definition>00000049 - Disclosure - 11. Share-Based Compensation (Details Narrative)</link:definition>
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	  <link:definition>00000050 - Disclosure - 12. Stockholders Equity (Details Narrative)</link:definition>
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	  <link:definition>00000051 - Disclosure - 13. Segment and Geographic Information (Details)</link:definition>
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    <import namespace="http://fasb.org/us-gaap/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd" />
    <import namespace="http://fasb.org/us-types/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-types-2014-01-31.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
    <element id="AAOI_ChangeInRestrictedCashForConstructionInProgress" name="ChangeInRestrictedCashForConstructionInProgress" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_PurchaseOfIntangibleAssetsWithNotesPayable" name="PurchaseOfIntangibleAssetsWithNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_InterimFinancialStatementsPolicyTextBlock" name="InterimFinancialStatementsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_AdvancePayments" name="AdvancePayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_GovernmentSubsidyIncome" name="GovernmentSubsidyIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsExcerciseWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsExcerciseWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_WeightedAverageFairValueVestedAndExpectedToVest" name="WeightedAverageFairValueVestedAndExpectedToVest" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsExericsableWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsExericsableWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ExercisedAggregateIntrinsicValue" name="ExercisedAggregateIntrinsicValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueForfeited" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueForfeited" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_AggregateIntrinsicValueExericsable" name="AggregateIntrinsicValueExericsable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedAggregateIntrinsicValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueExercisedReleased" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueExercisedReleased" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueForfeitedCancelled" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValueForfeitedCancelled" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_TermLoan1Member" name="TermLoan1Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_TermLoan2Member" name="TermLoan2Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_TermLoan3Member" name="TermLoan3Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit2Member" name="LineOfCredit2Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit3Member" name="LineOfCredit3Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit4Member" name="LineOfCredit4Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit5Member" name="LineOfCredit5Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NotePayable1Member" name="NotePayable1Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NotePayableMember" name="NotePayableMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_CNYMember" name="CNYMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_USDMember" name="USDMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit1Member" name="LineOfCredit1Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_LineOfCredit6Member" name="LineOfCredit6Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_BankAcceptanceNotesPayableMember" name="BankAcceptanceNotesPayableMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_CTBCBankTaipeiMember" name="CTBCBankTaipeiMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ESunCommercialBankTaiwanMember" name="ESunCommercialBankTaiwanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_MegaInternationalCommercialBankTaiwanMember" name="MegaInternationalCommercialBankTaiwanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ESunCommercialBankTaiwan2Member" name="ESunCommercialBankTaiwan2Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_EastWestBankMember" name="EastWestBankMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_EastWestBankTermLoanMember" name="EastWestBankTermLoanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_EastWestBankConstructionLoanMember" name="EastWestBankConstructionLoanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_TaiwanLocationMember" name="TaiwanLocationMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ChinaConstructionBankMember" name="ChinaConstructionBankMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_WeightedAverageSharesUsedToComputeNetIncomeLossPerShareAbstract" name="WeightedAverageSharesUsedToComputeNetIncomeLossPerShareAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_CashPaidFor" name="CashPaidFor" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_FairValueOfFinancialInstrumentsDetailsAbstract" name="FairValueOfFinancialInstrumentsDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NumeratorAbstract" name="NumeratorAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_DenominatorAbstract" name="DenominatorAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_WeightedAverageSharesUsedToComputeNetIncomeLossAbstract" name="WeightedAverageSharesUsedToComputeNetIncomeLossAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NetIncomeLossPerShare" name="NetIncomeLossPerShare" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_PotentiallyDilutiveSecuritiesDetailsAbstract" name="PotentiallyDilutiveSecuritiesDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_InventoryDetailsAbstract" name="InventoryDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_InventoryNarrativeAbstract" name="InventoryNarrativeAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_PropertyPlantAndEquipmentDetailsAbstract" name="PropertyPlantAndEquipmentDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_PropertyPlantAndEquipmentNarrativeAbstract" name="PropertyPlantAndEquipmentNarrativeAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NotesPayableAndLongtermDebtDetailsAbstract" name="NotesPayableAndLongtermDebtDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_AccruedLiabilitiesDetailsAbstract" name="AccruedLiabilitiesDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_OtherIncomeAndExpenseDetailsAbstract" name="OtherIncomeAndExpenseDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_NumberOfShares" name="NumberOfShares" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_ExercisePrice" name="ExercisePrice" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_WeightedAverageRemainingContractualLifeAbstract" name="WeightedAverageRemainingContractualLifeAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_AggregateIntrinsicValueAbstract" name="AggregateIntrinsicValueAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_AggregateIntrinsicValuesAbstract" name="AggregateIntrinsicValuesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="AAOI_SegmentAndGeographicInformationDetailsAbstract" name="SegmentAndGeographicInformationDetailsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
</schema>
