Analysis of the linewidth of a grating-feedback GaAlAs laser

被引:26
作者
Genty, G [1 ]
Gröhn, A
Talvitie, H
Kaivola, M
Ludvigsen, H
机构
[1] Helsinki Univ Technol, Metrol Res Inst, FIN-02015 Hut, Finland
[2] Helsinki Univ Technol, Phys Mat Lab, FIN-02015 Hut, Finland
基金
芬兰科学院;
关键词
external cavity laser; linewidth; self-homodyne method;
D O I
10.1109/3.880660
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Effects of external optical feedback from a reflection grating on the linewidth of a GaAlAs semiconductor laser operating at 780 nm are investigated. Accurate linewidth measurements as a function of the laser frequency tuning have been performed by applying the self-homodyne technique with a short delay line. A realistic coupled-cavity model, which incorporates the frequency-der pendent reflection from the grating, is used to explain the measured data. The agreement between the theoretical and experimental results was found to be good.
引用
收藏
页码:1193 / 1198
页数:6
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