Generation of optimized wavelength-tunable optical pulse from an uncooled gain-switched Fabry-Perot semiconductor laser using optical amplifier as external light injection
Generation of optimized wavelength-tunable optical pulse from an uncooled gain-switched Fabry-Perot semiconductor laser using optical amplifier as external light injection
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DOI：
10.1016/j.optcom.2008.06.051
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发表时间：
2008-10
影响因子：
2.4
通讯作者：
Yuanshan Liu;Jianguo Zhang;Wei Zhao
中科院分区：
文献类型：
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作者：
Yuanshan Liu;Jianguo Zhang;Wei Zhao
提出了一种利用光放大器作为外光源的非制冷增益开关法布里-珀罗半导体激光器产生波长可调谐光脉冲的新系统设计。利用该系统，增益开关激光器的时间抖动从3 ps左右减小到600 fs，脉冲宽度得到了优化。并对系统的稳定性进行了实验研究。结果表明，非制冷增益开关FP激光器系统在连续工作7小时内，可以产生脉宽为18 ps，重复频率为5GHz的稳定光脉冲序列。分别在1GHz、2.5GHz和5GHz工作频率下验证了系统的可行性。
We present a novel system design that can generate the optimized wavelength-tunable optical pulse streams from an uncooled gain-switched Fabry–Perot semiconductor laser using an optical amplifier as external light source. The timing jitter of gain-switched laser has been reduced from about 3ps to 600fs and the pulse width has been optimized by using our system. The stability of the system was also experimentally investigated. Our results show that an uncooled gain-switched FP laser system can feasibly produce the stable optical pulse trains with pulse width of 18ps at the repetition frequency of 5GHz during 7h continuous working. We respectively proved the system feasibility under 1GHz, 2.5GHz and 5GHz operation.