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| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccountsReceivable" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccountsReceivable"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccountsReceivable" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccountsReceivableTables" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccountsReceivableTables"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccountsReceivableTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccountsReceivableScheduleofComponentsofAccountsReceivableDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccountsReceivableScheduleofComponentsofAccountsReceivableDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccountsReceivableScheduleofComponentsofAccountsReceivableDetails" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_71480fc5-09e2-4266-955a-e2637e73c446" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_216df5e4-c211-430d-822d-9d3f0701dd8c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent"/> |
| | <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_71480fc5-09e2-4266-955a-e2637e73c446" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_216df5e4-c211-430d-822d-9d3f0701dd8c" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7b1f1aee-4469-4388-b94d-32f12da0115b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/> |
| | <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_71480fc5-09e2-4266-955a-e2637e73c446" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7b1f1aee-4469-4388-b94d-32f12da0115b" xlink:type="arc"/> |
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| <link:roleRef roleURI="http://www.emcore.com/20201231/role/Inventory" xlink:type="simple" xlink:href="emkr-20210331.xsd#Inventory"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/Inventory" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/InventoryTables" xlink:type="simple" xlink:href="emkr-20210331.xsd#InventoryTables"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/InventoryTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/InventoryScheduleofComponentsofInventoryDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#InventoryScheduleofComponentsofInventoryDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/InventoryScheduleofComponentsofInventoryDetails" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_56f5e920-4190-44fe-846a-94286a810269" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNet"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_352fc868-4948-4ef0-a886-337a1ffdb324" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/> |
| | <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_56f5e920-4190-44fe-846a-94286a810269" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_352fc868-4948-4ef0-a886-337a1ffdb324" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_96f83138-50e0-4cac-ae7b-14a07b20cf9d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/> |
| | <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_56f5e920-4190-44fe-846a-94286a810269" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_96f83138-50e0-4cac-ae7b-14a07b20cf9d" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_9f25f705-e71b-4ec9-8daa-2ffd36d226bc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/> |
| | <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_56f5e920-4190-44fe-846a-94286a810269" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_9f25f705-e71b-4ec9-8daa-2ffd36d226bc" xlink:type="arc"/> |
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| <link:roleRef roleURI="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnet" xlink:type="simple" xlink:href="emkr-20210331.xsd#PropertyPlantandEquipmentnet"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnet" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnetTables" xlink:type="simple" xlink:href="emkr-20210331.xsd#PropertyPlantandEquipmentnetTables"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnetTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnetScheduleofPropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#PropertyPlantandEquipmentnetScheduleofPropertyPlantandEquipmentDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/PropertyPlantandEquipmentnetScheduleofPropertyPlantandEquipmentDetails" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_283e3c3e-177b-450f-86b0-6d9ff37a8921" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_b862d4f6-d017-488b-b706-c64dd8a5386a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/> |
| | <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_283e3c3e-177b-450f-86b0-6d9ff37a8921" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_b862d4f6-d017-488b-b706-c64dd8a5386a" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_ec4d64bb-d2ce-4ce6-a898-11a41adce381" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/> |
| | <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_283e3c3e-177b-450f-86b0-6d9ff37a8921" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_ec4d64bb-d2ce-4ce6-a898-11a41adce381" xlink:type="arc"/> |
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| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilities" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccruedExpensesandOtherCurrentLiabilities"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilities" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilitiesTables" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccruedExpensesandOtherCurrentLiabilitiesTables"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilitiesTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedLiabilitiesDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedLiabilitiesDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedLiabilitiesDetails" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_6e0b0f8d-e22f-445b-b074-4a1792a4c8ab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent"/> |
| | <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_6e0b0f8d-e22f-445b-b074-4a1792a4c8ab" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_8aac0469-616f-4f46-a15d-388774747adb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent"/> |
| | <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_8aac0469-616f-4f46-a15d-388774747adb" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_9ae6758e-23d8-4b5c-8b3c-778195a6ce32" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/> |
| | <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_9ae6758e-23d8-4b5c-8b3c-778195a6ce32" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_d536e2fe-659e-45b4-a80a-2d6767b88f5b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/> |
| | <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_d536e2fe-659e-45b4-a80a-2d6767b88f5b" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_6f61a215-b2d1-42a8-aaae-99fd1510d339" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/> |
| | <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_6f61a215-b2d1-42a8-aaae-99fd1510d339" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_e221f63c-3ba2-49cf-81e3-98bd6784cb23" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/> |
| | <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_e221f63c-3ba2-49cf-81e3-98bd6784cb23" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_f64cf023-aa7d-41db-addb-9ecca889873f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveCurrent"/> |
| | <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_63dbc10f-2c72-4738-bec3-1a16a497683d" xlink:to="loc_us-gaap_RestructuringReserveCurrent_f64cf023-aa7d-41db-addb-9ecca889873f" xlink:type="arc"/> |
| | </link:calculationLink> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/CreditFacilitiesandDebt" xlink:type="simple" xlink:href="emkr-20210331.xsd#CreditFacilitiesandDebt"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/CreditFacilitiesandDebt" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/CreditFacilitiesandDebtNarrativeDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#CreditFacilitiesandDebtNarrativeDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/CreditFacilitiesandDebtNarrativeDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/IncomeandOtherTaxes" xlink:type="simple" xlink:href="emkr-20210331.xsd#IncomeandOtherTaxes"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/IncomeandOtherTaxes" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/IncomeandOtherTaxesNarrativeDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#IncomeandOtherTaxesNarrativeDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/IncomeandOtherTaxesNarrativeDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="emkr-20210331.xsd#CommitmentsandContingencies"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/CommitmentsandContingencies" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#CommitmentsandContingenciesDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/CommitmentsandContingenciesDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/Equity" xlink:type="simple" xlink:href="emkr-20210331.xsd#Equity"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/Equity" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityTables" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityTables"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityTables" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityNarrativeDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityNarrativeDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityNarrativeDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityScheduleofStockbasedCompensationExpensebyAwardTypeDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityScheduleofStockbasedCompensationExpensebyAwardTypeDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityScheduleofStockbasedCompensationExpensebyAwardTypeDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityScheduleofStockbasedCompensationExpensebyExpenseCategoryDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityScheduleofStockbasedCompensationExpensebyExpenseCategoryDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityScheduleofStockbasedCompensationExpensebyExpenseCategoryDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityScheduleofEarningsperShareDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityScheduleofEarningsperShareDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityScheduleofEarningsperShareDetails" xlink:type="extended"/> |
| <link:roleRef roleURI="http://www.emcore.com/20201231/role/EquityScheduleofCommonStockReservedforFutureIssuancesDetails" xlink:type="simple" xlink:href="emkr-20210331.xsd#EquityScheduleofCommonStockReservedforFutureIssuancesDetails"/> |
| <link:calculationLink xlink:role="http://www.emcore.com/20201231/role/EquityScheduleofCommonStockReservedforFutureIssuancesDetails" xlink:type="extended"> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_fc24399d-1be6-4a58-b677-202326e69351" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/> |
| | <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_b62b8f2b-5411-42b9-aeac-a00f8bfd914d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/> |
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| | <link:loc xlink:type="locator" xlink:label="loc_emkr_OfficerAndDirectorSharePurchasePlanSharesReservedForFutureIssuances_8c03f4e2-6e43-4c9a-9c6d-5a1547374217" xlink:href="emkr-20210331.xsd#emkr_OfficerAndDirectorSharePurchasePlanSharesReservedForFutureIssuances"/> |
| | <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_fc24399d-1be6-4a58-b677-202326e69351" xlink:to="loc_emkr_OfficerAndDirectorSharePurchasePlanSharesReservedForFutureIssuances_8c03f4e2-6e43-4c9a-9c6d-5a1547374217" xlink:type="arc"/> |
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