11 May 1993 High-performance gain-coupled distributed-feedback semiconductor lasers with absorptive gratings
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Proceedings Volume 1979, 1992 International Conference on Lasers and Optoelectronics; (1993) https://doi.org/10.1117/12.144138
Event: 1992 International Conference on Lasers and Optoelectronics, 1992, Bejing, China
Abstract
Improved characteristics of gain-coupled distributed feedback (DFB) semiconductor lasers are obtained by optimizing the duty cycle of the absorptive grating and using an absorptive conduction-type-inverted grating. Low threshold current cw operation is achieved at 10 mA lower than lasers without conduction-type-inverting. Furthermore, improved linear oscillation and a narrow linewidth are demonstrated. For gain-coupled DFB semiconductor lasers based on absorptive gratings, ultralow chirping operation under gain switching conditions is obtained for the first time.
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Yi Luo, Yi Luo, H. L. Cao, H. L. Cao, M. Dobashi, M. Dobashi, H. Hosomatsu, H. Hosomatsu, Yoshiaki Nakano, Yoshiaki Nakano, Kunio Tada, Kunio Tada, } "High-performance gain-coupled distributed-feedback semiconductor lasers with absorptive gratings", Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); doi: 10.1117/12.144138; https://doi.org/10.1117/12.144138
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