本文报道新近研制的一种单模光纤偏振控制器,该器件采用全光学的方法对光纤输出光信号的任意偏振态进行自动调整,使其成为一沿给定方向偏振的线偏振态;器件插入损耗小于1 dB,与半导体激光放大器耦合损耗可小于5.5 dB,其偏振灵敏度不大于0.5 dB.

An all-optaical fibre state-of-polarization controller (AOFSOPC) is first presented in this paper, which effectively changes the random state-of-polarization (SOP) of the single-mode fibre into a stable linear SOP. The SOP control is achieved without any mechanical, electrical or magnetical device. The characteristic parameters of the AOFSOPC fabricated experimentally have been measured with the insert loss and polarization sensitivity less than 1 dB and 0.5 dB, respectively.