Study of phase sensitive amplifier repeater

阐明了在石英光纤和准相位匹配的铌酸锂光波导作为参数介质的情况下，具有输入光位相依赖增益的光学相敏放大器的基本增益特性。在重复的BPSK/QPSK光纤传输系统中采用PSA作为中继器放大器时，还计算了再生中继器的间距。阐明了由于泵浦和输入信号光之间的光学相位误差而造成的功率损失。首次成功地进行了利用光学锁相环进行泵浦相位控制的实验。

Fundamental gain characteristics of optical phase-sensitive amplifier which have input-optical phase dependent gain are clarified, in the case thatsilica optical fiber and quasi-phase matched Lithium Niobate waveguide is applied as a parametric medium. Regenerative repeater spacing is also calculated when the PSAs are adopted as repeater amplifiers in repeated BPSK/QPSK optical fiber transmission system. Power penalty due to optical phase error between pump and input signal light is also clarified. Experiment using optical phase-lock loop circuit for pump phase control is successfully demonstrated for the first time.