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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 11 — Nov. 1, 1999
  • pp: 2030–2039

Spatiotemporal dynamics and high-frequency self-pulsations in two-section distributed feedback lasers

Xinhong Wang, Guifang Li, Jin Hong, and Stephen A. Pappert  »View Author Affiliations


JOSA B, Vol. 16, Issue 11, pp. 2030-2039 (1999)
http://dx.doi.org/10.1364/JOSAB.16.002030


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Abstract

We present a traveling-wave large-signal simulation of the spatiotemporal dynamics of two-section distributed feedback lasers, emphasizing the self-pulsation phenomenon. For index-coupled lasers, self-pulsation is a result of the interaction of two modes, each spatially confined primarily to one section. For partially gain-coupled lasers, self-pulsation is a result of the interaction of two modes, one that is spatially confined primarily to one section and another that belongs to both sections. The self-pulsation frequency-tuning range and the modulation index of partially gain-coupled lasers are found to be substantially larger than those of index-coupled lasers. Experimentally, self-pulsation with a frequency-tuning range from 20 to 60 GHz in two-section partially gain-coupled distributed-feedback lasers has been characterized in the electrical domain. The noise of self-pulsation was reduced experimentally by optical feedback.

© 1999 Optical Society of America

OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
Xinhong Wang, Guifang Li, Jin Hong, and Stephen A. Pappert, "Spatiotemporal dynamics and high-frequency self-pulsations in two-section distributed feedback lasers," J. Opt. Soc. Am. B 16, 2030-2039 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-11-2030

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