Multi-wavelength sampled Bragg grating quantum cascade laser arrays-中国期刊网

摘要 Amulti-wavelengthsampledBragggrating（SBG）quantumcascadelaserarrayoperatingbetween7.32and7.85μmisreported.Thesamplinggratingstructure,whichcanbeanalyzedasaconventionalgratingmultipliedbyasamplingfunction,isfabricatedbyholographicexposurecombinedwithopticalphotolithography.Thesamplinggratingperiodwasvariedfrom8to32lira,anddifferentsamplingorder（-1st,-2nd,and-3rdorder）modeswereachieved.Weproposethathigher-ordermodeswithoptimizeddutycyclescanbeusedtotakefulladvantageofthegaincurveandimprovethewavelengthcoverageoftheSBGarray,whichwillbebeneficialtomanyapplications.

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Multi-wavelength sampled Bragg grating quantum cascade laser arrays

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Multi-wavelength sampled Bragg grating quantum cascade laser arrays

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