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Author Hong, J. ♦ Huang, W.P.
Sponsorship IEEE Lasers and Electro-Optics Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1965
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Tunable circuits and devices ♦ Semiconductor lasers ♦ Filters ♦ Laser modes ♦ Laser theory ♦ Gratings ♦ Optical reflection ♦ Waveguide junctions ♦ Waveguide lasers ♦ Optical coupling
Abstract A general theoretical model is established and analyzed for a tunable semiconductor laser with a built-in co-directional grating-assisted vertical coupler filter. Possible internal reflection at the gain-coupler junction is included. A rigorous coupled-mode formulation based on the composite modes in the absence of the grating perturbation and a mode-matching method at the waveguide junctions is combined with multimode rate equation analysis. The dispersion of the semiconductor material is also included in the model. The accuracy and the scope of validity of the model are verified for both weakly and strongly coupled filter structures. Simple expressions for equivalent mirror reflectance, lasing wavelength, threshold gain and side-mode suppression ratio (SMSR) are derived and typical examples examined. The effects of the filter and the internal reflection on the longitudinal mode selectivity are discussed.<<ETX>>
Description Author affiliation :: Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
ISSN 00189197
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1993-12-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 29
Issue Number 12
Size (in Bytes) 735.89 kB
Page Count 8
Starting Page 2878
Ending Page 2885


Source: IEEE Xplore Digital Library