Yoshikawa Toru, Okamura Kazuro, Otani Eisuke, Okaniwa Takeo, Uchino Tatsuji, Fukushima Masaru, Kagi Nobuyuki
Opt Express. 2006 May 29;14(11):4650-5. doi: 10.1364/oe.14.004650.
We demonstrate that WDM burst signals are amplified with suppressed gain transients in cascaded erbium-doped fiber amplifiers (EDFAs) with fast electrical feedback control. In a recirculating loop experiment, the gain excursion is suppressed to 5.1 dBp-p after 45 EDFAs while the excursion is 28 dBp-p after 5 EDFAs without the gain control. Spectral hole burning is a main limiting factor for the transient suppression. The effect of the gain control is also verified in a transmission experiment at 10 Gb/s.
我们证明，在具有快速电反馈控制的级联掺铒光纤放大器（EDFA）中，波分复用（WDM）突发信号在增益瞬态得到抑制的情况下被放大。在一个循环回路实验中，经过45个EDFA后，增益 excursions 被抑制到5.1 dBp-p，而在没有增益控制的情况下，经过5个EDFA后，增益 excursions 为28 dBp-p。光谱烧孔是瞬态抑制的主要限制因素。增益控制的效果也在10 Gb/s的传输实验中得到了验证。
