Tunable bandwidth optical rotator

(整期优先)网络出版时间:2015-04-14
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Weproposeandexperimentallydemonstrateanoveltypeofpolarizationrotatorthatiscapableofrotatingthepolarizationplaneofalinearlypolarizedlightatanydesiredangleineitherbroadornarrowspectralbandwidth.Therotatorcomprisesanarrayofstandardhalf-waveplatesrotatedatspecificangleswithrespecttotheirfast-polarizationaxes.Theperformanceoftherotatordependsonthenumberofinpidualhalf-waveplates,andinthispaperweexperimentallyinvestigatetheperformanceoftwocompositerotatorscomprising6and10half-waveplates.