Stable single-mode operation of a distributed feedback quantum cascade laser integrated with a distributed Bragg reflector

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摘要 Wereportanindex-coupleddistributedfeedbackquantumcascadelaserbyemployinganequivalentphaseshift(EPS)ofquarter-waveintegratedwithadistributedBraggreflector(DBR)atλ~5.03μm.TheEPSisfabricatedthroughextendingonesamplingperiodby50%inthecenterofasampledBragggrating.ThekeyEPSandDBRpatternarefabricatedbyconventionalholographicexposurecombinedwiththeopticalphotolithographytechnology,whichleadstoimprovedflexibility,repeatability,andcost-effectiveness.Stablesingle-modeemissioncanbeobtainedbychangingtheinjectioncurrentorheatsinktemperatureevenundertheconditionoflargedrivingpulsewidth.
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出版日期 2017年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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