XIN Xiang-jun, YU Chong-xiu, LI An-jian. A simple and practical method for adjusting the gain flatness of Raman fiber amplifier. [J]. (2):61-63(2004) DOI: 10.13756/j.gtxyj.2004.02.019.
A simple and practical method for adjusting the gain flatness of Raman fiber amplifier
A simple method is proposed to adjust Raman fiber amplifiers’ gain flatness by means of a broadband amplified spontaneous emission (ASE) light source. The gain ripple of 20-channel is below 1 dB
and the gain spectrum is nearly the same with the ASE’s when the same pump deployment is used. The method is simple and easy to operate and can be utilized to optimize the performance of the Raman fiber amplifier used in DWDM system without using expensive DWDM signal source whose operation is complicated.