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Proceedings Paper

Threshold analysis of circular grating DBR/DFB lasers with lambda/4 phase-shift
Author(s): Sylwia Tarasiuk; Tomasz Kossek; Pawel Szczepanski
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Paper Abstract

In this paper threshold analysis for circular grating DBR/DFB with (lambda) /4 phase-shift lasers is presented. In particular, the influence of the phase-shift position in grating on the spectrum of the laser modes and gain is analyzed. It is shown that for central perturbation of the grating the mode selection is enhanced remarkably with comparison to laser structure with uniform grating, when the ratio of active medium length to the grating length is small.

Paper Details

Date Published: 4 October 2000
PDF: 5 pages
Proc. SPIE 4237, Laser Technology VI: Progress in Lasers, (4 October 2000); doi: 10.1117/12.402856
Show Author Affiliations
Sylwia Tarasiuk, Warsaw Univ. of Technology (Poland)
Tomasz Kossek, Institute of Telecommunication (Poland)
Pawel Szczepanski, Warsaw Univ. of Technology (Poland) and Institute of Telecommunication (Poland)


Published in SPIE Proceedings Vol. 4237:
Laser Technology VI: Progress in Lasers
Wieslaw L. Wolinski; Zdzislaw Jankiewicz, Editor(s)

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