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VBG(VolumeBragggrating\xa0)体布拉格光栅外腔半导体激光器
体布拉格光栅是一种透明介质,其折射率呈周期性变化。体布拉格光栅(Volume Bragg Grating, VBG)激光二极管利用了VBG作为反馈元件,以实现窄线宽和波长选择性的激光输出。其工作原理主要基于布拉格衍射条件和光学反馈机制。 一般地,半导体激光器的出射光 ...
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