Single steady frequency and narrow-linewidth external cavity semiconductor laser

Weirui Zhao; Genrui Cao

doi:10.1117/12.576625

20 January 2005 Single steady frequency and narrow-linewidth external cavity semiconductor laser

Weirui Zhao, Genrui Cao

Proceedings Volume 5628, Semiconductor Lasers and Applications II; (2005) https://doi.org/10.1117/12.576625
Event: Photonics Asia, 2004, Beijing, China

Abstract

A single longitudinal mode and narrow line width external cavity semiconductor laser is proposed. It is constructed with a semiconductor laser, collimator, a flame grating, and current and temperature control systems. The one facet of semiconductor laser is covered by high transmission film, and another is covered by high reflection film. The flame grating is used as light feedback element to select the mode of the semiconductor laser. The temperature of the constructed external cavity semiconductor laser is stabilized in order of 10^-3°C by temperature control system. The experiments have been carried out and the results obtained ---the spectral line width of this laser is compressed to be less than 1.4MHz from its original line-width of more than 1200GHz and the output stability (including power and mode) is remarkably enhanced.

Citation Download Citation

Weirui Zhao and Genrui Cao "Single steady frequency and narrow-linewidth external cavity semiconductor laser", Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); https://doi.org/10.1117/12.576625

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