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Mode-Locking in Broad-Area Semiconductor Lasers Enhanced by Picosecond-Pulse Injection

Kaiser, J, Fischer, I, Elsasser, W, Gehrig, E and Hess, O (2004) Mode-Locking in Broad-Area Semiconductor Lasers Enhanced by Picosecond-Pulse Injection IEEE Journal of Selected Topics in Quantum Electronics, 10 (5).


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We present combined experimental and theoretical investigations of the picosecond emission dynamics of broad-area semiconductor lasers (BALs). We enhance the weak longitudinal self-mode-locking that is inherent to BALs by injecting a single optical 50-ps pulse, which triggers the output of a distinct regular train of 13-ps pulses. Modeling based on multimode Maxwell-Bloch equations illustrates how the dynamic interaction of the injected pulse with the internal laser field efficiently couples the longitudinal modes and synchronizes the output across the laser stripe. Thus, our results reveal insight into the complex interplay between lateral and longitudinal dynamics in BALs, at the same time indicating their potential for short optical pulse generation.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Kaiser, J
Fischer, I
Elsasser, W
Gehrig, E
Date : 1 January 2004
DOI : 10.1109/JSTQE.2004.836021
Additional Information : Published in <i>Journal of Selected Topics in Quantum Electronics,</i> Copyright 2004 IEEE. Click <a href=>here</a> to access the journal's website.
Depositing User : Mr Adam Field
Date Deposited : 27 May 2010 14:07
Last Modified : 31 Oct 2017 13:57

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