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The Optical Bistability in the Active and Absorptive Tandem Semiconductor Lasers
Author(s) -
Zhang Xiaobo,
Flint I.
Publication year - 1988
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221500243
Subject(s) - tandem , bistability , optical bistability , laser , semiconductor laser theory , semiconductor , hysteresis , materials science , optoelectronics , optics , ridge , physics , nonlinear optics , condensed matter physics , paleontology , composite material , biology
Experimental results and a theoretical analysis are given of the active and absorptive ridge waveguide tandem semiconductor lasers. It is found that the relative hysteresis width in the optical output of the laser depends on the parameters of the laser structure such as the relative length of the two regions and also the pumping levels. Especially, a small extraction current from the passive part causes the enhancement of the bistability. Both, the experimental and theoretical results suggest that there is an optimum selection of the relative length of the two regions and of the current level applied on the passive region, if a maximum hysteresis is required.