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Proceedings Paper

Dynamics of optical switching in polarization-bistable laser diode with detuned light injection
Author(s): Bijan Ghafary; Masakatsu Okada
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Paper Abstract

The switching time of an optically switched polarization- bistable laser diode between locked and free oscillating modes is studied by analytical and numerical methods based on rate equations. Dependencies of switching time on the detuning and power of optical input and injection current are analyzed. It is shown that larger detuning and power of optical input are effective in shortening the switching time as well as smaller injection current. By starting with linear stability analysis, analytical expressions are developed to predict the switching time. Our analytical results, in which the switching of optical output from locked to unlocked mode is shown to be composed of two relaxation processes with a short and long time constants, are in agreement with the numerical results showing fast and slow switching behaviors dependent on the locked state, in contrast to the dynamic behavior of carrier density dominated by a single relaxation process.

Paper Details

Date Published: 8 September 1999
PDF: 13 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361126
Show Author Affiliations
Bijan Ghafary, Ritsumeikan Univ. (Japan)
Masakatsu Okada, Ritsumeikan Univ. (Japan)

Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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