Performance of two-stage discrete fiber Raman amplifiers with and without all-optical gain clamping

2005 ◽  
Vol 44 (1) ◽  
pp. 83 ◽  
Author(s):  
Nikolaos Gryspolakis ◽  
Lawrence R. Chen ◽  
Theodore Zambelis
Keyword(s):  
Optical Gain ◽  
Two Stage ◽  
Raman Amplifiers ◽  
Gain Clamping ◽  
All Optical ◽  
Discrete Fiber

INFLUENCE OF PUMP DIRECTION IN ALL-OPTICAL GAIN-CLAMPED FIBER RAMAN AMPLIFIER

2007 ◽  
Vol 21 (20) ◽  
pp. 1307-1312 ◽  
Author(s):  
ZHIQIANG CHEN ◽  
JIPING NING ◽  
QUN HAN
Keyword(s):  
Feedback Loop ◽  
Optical Gain ◽  
Noise Performance ◽  
Directional Couplers ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier ◽  
Gain Clamping ◽  
All Optical

The influence of pump direction in all-optical gain-clamped fiber Raman amplifier using the directional couplers in feedback loop is demonstrated. The isolator direction decided the lasing direction in feedback loop. The comparison of performance in two lasing directions for both schemes is shown. It is concluded that the forward pumping configuration with forward lasing has better gain clamping performance and noise performance.

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