We use an integrated electro-absorption modulation (EAM) distributed feedback (DFB) laser as optical source. Compared to the electro-optic modulator, the electro-absorption modulator (EOM) provides higher signal-to-noise (SN) ratio.

• 光源采用集成了电吸收调制器(EAM)的分布反馈式激光器(DFB Laser),实验结果表明采用电吸收调制器,系统性能比采用电光调制器(EOM)有了提高,主要表现为系统信噪比的提高。