Threshold analysis of circular grating DBR/DFB lasers with lambda/4 phase-shift
Sylwia Tarasiuk , Tomasz Kossek , Paweł Szczepański
AbstractIn 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.
|Corporate author||Institute of Microelectronics and Optoelectronisc (IMiO)|
|Book||Woliński Wiesław, Jankiewicz Zdzisław (eds.): Proceedings of SPIE Laser Technology VI: Progress in Lasers, vol. 4237, 2000, 1000 20th St. Bellingham WA 98225-6705 USA, SPIE, ISBN 9780819439116, 256 p.|
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