Rayleigh scattering limitations in distributed Raman pre-amplifiers

被引：124

作者：

Hansen, PB ^{[1
]}

Eskildsen, L ^{[1
]}

Stentz, AJ ^{[1
]}

Strasser, TA ^{[1
]}

Judkins, J ^{[1
]}

DeMarco, JJ ^{[1
]}

Pedrazzani, R ^{[1
]}

DiGiovanni, DJ ^{[1
]}

机构：

[1] AT&T Bell Labs, Lucent Technol, Holmdel, NJ 07733 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1998年 / 10卷 / 01期

关键词：

optical amplifiers; optical communication; optical fiber amplifiers; optical pumping; optical receivers; Raman scattering;

D O I：

10.1109/68.651148

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The properties and fiber dependence of distributed Raman pre-amplifiers and, in particular, the effects of Rayleigh backscattering, which limits the sensitivity improvements that can be realized, is discussed, Bit-error-Fate (BER) measurements show improvements in the effective receiver sensitivity of 6.2 and 7.0 dB for dispersion shifted fiber (DSF) and silica-core fiber (SCF), respectively. Theoretical predictions of the effective noise figure based on measured fiber parameters indicate improvements of 6.6 dB for DSF and 7.4 dB for SCF in good agreement with the measured optical SNR, The optimum receiver sensitivity is obtained in DSF with less than 600 mW of pump power, whereas the 0.8-dB superior performance of the SCF requires approximately 1 W.

引用

页码：159 / 161

页数：3

共 8 条

[1] SPONTANEOUS AND STIMULATED RAMAN-SCATTERING IN LONG LOW-LOSS FIBERS [J].