High-speed modulation of twin-emitter semiconductor laser arrays

Marc K. Felisky; Richard K. DeFreez; Nils W. Carlson; Herbert G. Winful

doi:10.1117/12.177395

10 June 1994 High-speed modulation of twin-emitter semiconductor laser arrays

Marc K. Felisky, Richard K. DeFreez, Nils W. Carlson, Herbert G. Winful

Proceedings Volume 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV; (1994) https://doi.org/10.1117/12.177395
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Interelement optical coupling introduces microwave frequency time constants to semiconductor laser array systems. The phenomenon is related to beating between lateral array modes and can take place at frequencies from 10 to 50 GHz for typical array designs employing index guided elements. Linearized coupled rate equation analysis has previously found small-signal modulation resonances at those frequencies. Here, the full rate equation theory is used for large signal analysis and novel schemes for utilizing those microwave frequency resonances for high speed optical signal transmission are theoretically demonstrated. We show, for example, that digital signals with bit rates many times the relaxation oscillation frequency are possible in principle.

Citation Download Citation

Marc K. Felisky, Richard K. DeFreez, Nils W. Carlson, and Herbert G. Winful "High-speed modulation of twin-emitter semiconductor laser arrays", Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); https://doi.org/10.1117/12.177395

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