Dynamic Gain-Clamped Amplifier with Backward-Injection of a Fabry-Perot Laser |
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| Authors: | Chien-Hung Yeh Chih-Yang Chen Chien-Chung Lee Sien Chi |
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| Institution: | Institute of Electro-Optical Engineering, Chiao-Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan, 300 |
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| Abstract: | We have been experimentally demonstrated an active control technique of dynamic gain-clamped spectra for the erbium-doped fiber amplifiers (EDFA's) by a backward-injected Fabry-Perot (F-P) laser into this EDFA. In addition, employing a short length erbium-doped fiber (EDF) that not cause any gain saturation for preamplification in front of this amplifier module, it can reduce the noise figure degradation and simultaneously achieve gain variation from 11.1 dB to 0.5 dB for 10 dB input power level change. |
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