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.

scholarly journals Comparison: Simulation and Experimental Characterisation of an all-Optical Gain-Clamped Erbium-Doped Fibre Amplifier

1970 ◽  
Vol 4 (2) ◽  
Author(s):  
T. Subramaniam M. A. Mahdi P. Poopalan, and H. Ahmad
Keyword(s):  
Laser Power ◽  
Simulation Experiment ◽  
Optical Gain ◽  
Current Gain ◽  
Fibre Amplifier ◽  
High Laser ◽  
Erbium Doped ◽  
Gain Clamping ◽  
All Optical ◽  
Experimental Characterisation

This paper presents the GC-EDFA characteristics comparison between the simulated results (using EDFA_Design software) and experimental results. The comparisons reveal the usefulness of the software in simulating the behaviour of an all-optical GC-EDFA system. Comparisons are made for values obtained from the system operated at high laser power, in order to highlight the differences between the experimental and simulated values. The main objective for this comparison is to prove the capability of the software in simulating the gain-clamped system. Therefore, the software can be used to test new configurations, aimed at improvising current gain-clamped EDFA performances.Keywords optical, gain-clamping, erbium, fibre amplifier, simulation, experiment

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