Design of all-optical gain-clamped lumped Raman fibre amplifier for optimal dynamic performance

被引：2
作者：
Karásek, M
Kanka, J
Khan, GR
Radil, J
机构：
[1] Acad Sci Czech Republ, Inst Radio Engn & Elect, CR-18251 Prague, Czech Republic
[2] Natl Inst Technol, Dept Phys, Srinagar 190006, Jammu & Kashmir, India
[3] CESNET, Prague 16000, Czech Republic
来源：
IEE PROCEEDINGS-OPTOELECTRONICS | 2005年 / 152卷 / 04期
关键词：
D O I：
10.1049/ip-opt:20045019
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 effect of lasing wavelength selection and optical feedback loop loss on the performance of an all-optical gain-clamped (AOGC) lumped Raman fibre amplifier (LRFA) is investigated both theoretically and experimentally. Suppression of surviving channel power fluctuations is selected as a criterion of the performance of the AOGC LRFA. A large-signal numerical model which incorporates time variation effects and the downstream propagation of signals, upstream propagation of pumps and downstream and upstream propagation of amplified spontaneous emission (ASE) spectral components has been used for the theoretical analysis. The LRFAs consist of 13 kin Of counter-directionally pumped dispersion compensating fibre (DCF). In the experiment, channel addition/removal is simulated by propagating optical power from two laser diodes through the AOGC LRFA. One of them is square-wave modulated at 500 Hz and the power fluctuations of the continuous wave signal of the other laser diode caused by cross-gain saturation effect in LRFAs are monitored.
引用
收藏
页码：223 / 229
页数：7
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