EFFECTS OF COUPLING COEFFICIENT ON STATIC PROPERTIES OF BISTABLE QWS-DFB SEMICONDUCTOR LASER AMPLIFIERS | Zendy

Mahmoud Aleshams | Zendy

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EFFECTS OF COUPLING COEFFICIENT ON STATIC PROPERTIES OF BISTABLE QWS-DFB SEMICONDUCTOR LASER AMPLIFIERS

Author(s) -

Mahmoud Aleshams

Publication year - 2009

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc09062401

Subject(s) - bistability , coupling coefficient of resonators , semiconductor , amplifier , laser , coupling (piping) , semiconductor laser theory , optical bistability , materials science , optoelectronics , optical amplifier , optics , physics , nonlinear optics , cmos , resonator , metallurgy

We had previously analyzed the effects of trapezoidal tapered gratings on the dispersive bistable characteristics of a quarter wavelength phase-shifted distributed feedback semiconductor laser amplifier (QWS-DFB-SLA). In this paper, the effects of coupling coefficient on the static bistable characteristics of a QWS-DFB SLA with a tapered or a non-tapered grating were analyzed. Simulation results showed that any change in the coupling coefficient could change the characteristics such as the spectral range of low-threshold bistable switching and the on-off switching contrast.

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