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| 新型双波长激光增益控制掺铒光纤放大器 | |
| 引用本文： | 赵春柳,关柏鸥,董新永,谭华耀,袁树忠,董孝义.新型双波长激光增益控制掺铒光纤放大器[J].光学学报,2002,22(11):331-1335. |
| 作者姓名： | 赵春柳 关柏鸥 董新永 谭华耀 袁树忠 董孝义 |
| 作者单位： | 1. 南开大学现代光学研究所,天津,300071;香港理工大学电机系,九龙,香港 2. 香港理工大学电机系,九龙,香港 3. 南开大学现代光学研究所,天津,300071 |
| 摘 要： | 掺铒光纤非均匀展宽引起的空间烧孔现象导致单波长激光并不能完全控制放大器增益。提出了一种新颖简单的结构，利用自由光谱范围为26．7nm的法布里－珀罗可调谐滤波器和由长周期光纤光栅制成的波长选择性可调谐的衰减器，有效地调整不同波长处的腔内损耗，可以实现不同强度的双波长激射。由两个不同波长的激光共同承担增益控制的任务，降低了控制激光引起的空间烧孔，同时双波长激射有效地抑制了信号光的弛豫振荡。 |
| 关 键 词： | 双波长激光 掺钌光纤放大器 空间烧孔现象 弛豫振荡 增益控制 |
| 收稿时间： | 2001/11/13 |
A Novel Gain Control EDFA by Dual-Control Lasers |
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| Zhao Chunliu , Guan Baiou Dong Xinyong , Tam Hwa Yaw Yuan Shuzhong Dong Xiaoyi.A Novel Gain Control EDFA by Dual-Control Lasers[J].Acta Optica Sinica,2002,22(11):331-1335. | |
| Authors: | Zhao Chunliu Guan Baiou Dong Xinyong Tam Hwa Yaw Yuan Shuzhong Dong Xiaoyi |
| Institution: | Zhao Chunliu 1),2) Guan Baiou 2) Dong Xinyong 1),2) Tam Hwa Yaw 2) Yuan Shuzhong 1) Dong Xiaoyi 1) 1),Institute of Mordern Optics,Nankai University,Tianjin 300071 2),Department of Electrical Engineering,Hong Kong Polytechnic University,Hong Kong |
| Abstract: | A novel method for automatic gain control of optical amplifiers is presented. It uses a F P filter with 26.7 nm free spectral span and two long period gratings (LPGs) for oscillating dual lasers in a single feedback loop. By bending the LPGs, the cavity losses at different wavelengths are varied individually and the dual lasers feedback are varied too. The technique significantly reduces surviving channel steady state and transient power excursion by automatic reduction of relaxation oscillations and spectral hole burning. Properties of this novel optical gain control EDFA with dual control lasers were studied in detail. |
| Keywords: | EDFA inhomogeneity optical gain control spectral hole burning relaxation oscillations |
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