Dynamics of on-chip asymmetrically coupled semiconductor lasers.
Opt Lett
; 45(8): 2223-2226, 2020 Apr 15.
Article
en En
| MEDLINE
| ID: mdl-32287199
ABSTRACT
We investigate the dynamics of asymmetrically coupled semiconductor lasers on photonic integrated circuits in experiment and theory. The experimental observations are explained using a rate-equation model for coupled lasers incorporating a saturable coupling waveguide. We perform a bifurcation analysis of the coupled laser dynamics, focusing on the effects of the coupling phase and the dynamical difference between passive and saturable coupling waveguides. For a passive waveguide, we find a bifurcation scenario closely resembling the well-known optical injection setup, which is largely insensitive to the coupling phase. When the coupling waveguide is saturable, the dynamics become increasingly complex and unpredictable, with a strong phase-dependence. Our results show the possibility of a simple layout for reproducible laser dynamics on a chip.
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01-internacional
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MEDLINE
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En
Revista:
Opt Lett
Año:
2020
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Article