简介：Awavelength-sweptlaserisconstructedusingafreespaceexternalcavityconfigurationcoupledwithafiberbasedringcavityatthe850nmregion.Theexternalcavityfilteremploysagalvo-mirrorscannerwithadiffractiongratingforwavelengthselection.Thefilterisconnectedtoaringcavitythroughanopticalcirculator.Theringcavitycontainsabroadbandsemiconductoropticalamplifierwithahighopticaloutput.Theperformanceofthislaserisdemonstratedwithbroadbandwidthsandnarrowlinewidths.The3dBlinewidthandthebandwidthofthissourceare0.05nm(~20GHz)and48nm,respectively.Themaximumoutputpoweris26mWat160mAcurrent.
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