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Proceedings Paper

Enhancement of the low-frequency response of a reflective semiconductor optical amplifier slow light-based microwave phase shifter by forced coherent population oscillations
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Paper Abstract

The enhancement of the low frequency gain response of a microwave phase shifter based on slow light in a bulk reflective semiconductor optical amplifier (RSOA), by using forced coherent population oscillations (FCPO), is experimentally demonstrated. FCPO is achieved by simultaneously modulating the input optical power and bias current. The beat signal gain improvement ranges from 45 to 0 dB over a frequency range of 0.5 to 2.5 GHz, thereby improving the noise performance of the phase shifter. Tunable phase shifts of up to 40º are possible over this frequency range.

Paper Details

Date Published: 2 May 2014
PDF: 6 pages
Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 91341P (2 May 2014); doi: 10.1117/12.2051478
Show Author Affiliations
Aidan Meehan, Univ. of Limerick (Ireland)
Michael J. Connelly, Univ. of Limerick (Ireland)

Published in SPIE Proceedings Vol. 9134:
Semiconductor Lasers and Laser Dynamics VI
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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