中国光学快报(英文版)
中國光學快報(英文版)
중국광학쾌보(영문판)
CHINESE JOURNAL OF LASERS
2003年
4期
202-204
,共3页
郑小平%奉飞飞%张汉一%李艳和
鄭小平%奉飛飛%張漢一%李豔和
정소평%봉비비%장한일%리염화
The effect of distributed Raman amplification (DRA) on the optical signal to noise ratio (OSNR) of anall optical network (AON) is examined by analyzing two types of node isolated principal (NIP). Based onthe parameters used in calculation, it is found that in the first case of NIP, the OSNR of a signal passingthrough such AON can be improved by about 8 dB compared with no DRA. Whereas in the second case ofNIP, the OSNR of the signal can be reduced by 11 dB. This kind of phenomena is analyzed and attributedto the dependence of noise figure of amplification system on the way of the active amplification utilization.
