Self modulation phenomena in an external-cavity semiconductor laser

被引：1
|
作者：
Wong, YJ
Chen, HH
Lai, CW
Kiang, YW
Yang, CC
机构：
[1] Natl Taiwan Univ, Grad Inst ElectroOpt Engn, Dept Elect Engn, Taipei 10764, Taiwan
[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10764, Taiwan
来源：
OPTICS COMMUNICATIONS | 2000年 / 180卷 / 4-6期
关键词：
saturable absorber; semiconductor lasers;
D O I：
10.1016/S0030-4018(00)00713-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the observed self-modulation phenomena in an external-cavity semiconductor laser, in which a slant ridge-loading waveguide was formed for the gain medium. A region beside the ridge at a cleaved end of the waveguide served as a saturable absorber for self-modulation. Under different conditions of injection current and cavity alignment, we observed three laser operation regimes, including pure cw oscillation, constant-amplitude pulse-like signal on the top of a cw component, and amplitude-modulated pulse-like signal coexistent with a cw component. The amplitude modulation phenomenon is different from the previously reported concurrence of mode-locking and self-pulsation. A model was proposed to explain the observed results. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：317 / 321
页数：5
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