Enhanced locking region in injection-locked two-section lasers

被引:2
作者
Chlouverakis, KE [1 ]
Adams, MJ [1 ]
机构
[1] Univ Essex, Dept Elect Syst Engn, Colchester CO4 3SQ, Essex, England
关键词
injection locking; two-section lasers; linewidth enhancement factor;
D O I
10.1016/j.optcom.2005.02.052
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this Letter, we investigate the criteria for achieving an enhanced stable locking region in the parameter space of injected field E-inj and frequency detuning w in two-section semiconductor lasers subject to optical injection. Using the rate equations, a stability analysis is performed and the conditions for an enhanced locking region are deduced from the requirement for the average linewidth enhancement factor appearing in the locking-bandwidth equation to be close to zero. We calculate a stability map for an injection-locked two-section laser with an almost-symmetrical locking region that is greatly enhanced compared to a single-section injection-locked laser with identical material and control parameters. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:398 / 402
页数:5
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