Wavelength stabilization scheme for tunable laser diode based on temperature feedback
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摘要: 介绍了可调谐半导体激光器在光通信领域的应用及其工作原理.重点讨论了SSG-DBR可调谐激光器的结构、工作原理,以及波长稳定控制方法.提出了一种新的基于温度反馈的波长稳定控制方法,使可调谐激光器的输出在20℃～70℃范围内的波长漂移小于1nm,边模抑制比优于5dB.该方法简单、可靠,将会对可调谐激光器在全光网络中的应用起到一定的推动作用.Abstract: A general discussion on tunable semiconductor lasers for high speed optical communication is presented,with emphasis on SSG-DBR lasers.Then a novel temperature feedback control scheme for frequency stabilization is described. Using bias current control,absolute wavelength stabilization within 1nm has been achieved with SMSR better than 35dB in the temperature range of 20℃~70℃.This simple,effective stabilization method will play an important role in obtaining highly reliable light sources for optical network.
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Keywords:
- tunable semiconductor laser /
- wavelength control /
- stabilization /
- Bragg grating
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