Abstract In order to obtain semiconductor lasers with narrow linewidth and low far-field divergence angle semiconductor lasers, a surface emitting distributed feedback (SE-DFB) semiconductor laser emitting from P-surface is researched theoretically and experimentally in this paper. The device is obtained with wavelength of 976.2 nm, linewidth of 0.94 nm, far-field divergence angle of 2.6 ∘ × 6.1 ∘ . Meanwhile the device is simple to fabricate and easy to integrate. The research proposes a novel method for obtaining narrow linewidth SE-DFB semiconductor lasers.

中文翻译：

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从 P 面发射的窄线宽面发射分布式反馈激光器

摘要 为了获得窄线宽、低远场发散角的半导体激光器，本文对一种从P面发射的表面发射分布反馈(SE-DFB)半导体激光器进行了理论和实验研究。该器件得到波长为 976.2 nm，线宽为 0.94 nm，远场发散角为 2.6 ∘ × 6.1 ∘ 。同时该装置制造简单，易于集成。该研究提出了一种获得窄线宽 SE-DFB 半导体激光器的新方法。