Frequency control of semiconductor lasers
Frequency control of semiconductor lasers
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半导体激光器的频率控制
DOI：
10.1109/iedm.1984.190765
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Shyh Wang
中科院分区：
文献类型：
--
作者：
Shyh Wang
高速、远距离光纤通信系统对稳定的单波长相干光源的要求对半导体激光器的频率控制提出了苛刻的要求。动态单波长源的两个主要候选者是(1)DFB和DBR激光器和(2)干涉激光器。本文首先回顾了内反射型干涉激光器的性能。然后，我们比较了布拉格激光器和内外反射型干涉激光器的突出特点和存在的问题。最后，我们提出了一种新的激光结构，称为干涉-DFB激光器，以利用干涉和DFB激光器的优点。对这种激光器的分析也为理解DFB激光器的行为提供了有价值的见解。
The requirement of a stable single-wavelength coherent source [1] for high-speed, long-distance optical-fiber communication systems has imposed severe conditions on the frequency control of semiconductor lasers. The two main candidates for a dynamic single-wavelength source are (1) the DFB and DBR lasers and (2) the interference lasers. In this paper, we first review the performances of interference lasers of the internal-reflection type. Then, we compare the outstanding features and problems of the Bragg lasers and the interference lasers of both internal- and external reflection types. Finally, we propose a new laser structure, called the interference-DFB laser, to take advantage of the interference and DFB lasers. An analysis of this laser also provides valuable insights in understanding the behavior of the DFB laser.