cw光注入によるFabry-Perot LDの全光制御モード同期における偏波特性とスペクトル線幅の狭窄化

Abstract

The polarization characteristics of four-wave mixing components generated by cw light injection in Fabry-Perot laser diodes were experimentally investigated. Only TE components were detected irrespective of the polarization of the injected cw light. Also, in order to apply the all-optical mode locking technique to a wide variety of laser diodes, methods to reduce the spectral linewidths of Fabry-Perot laser diodes were investigated. A simple method, which utilizes the reflection at the end of optical fibers coupled to LD rear facets, proved to be useful in spectral linewidth reductions.