Peer-Reviewed Journal Details
Mandatory Fields
Meehan, A,Connelly, MJ
2015
April
Optics Communications
Experimental characterization and modeling of the improved low frequency response of a current modulated bulk RSOA slow light based microwave phase shifter
Published
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Optional Fields
Reflective semiconductor optical amplifier Slow light Microwave phase shifter Modeling QUANTUM-DOT DEVICES SEMICONDUCTOR AMPLIFIERS
341
241
244
The enhancement of the low frequency gain response of a microwave phase shifter based on slow light in a TO-can packaged bulk reflective semiconductor optical amplifier, by using forced coherent population oscillations achieved by simultaneously modulating the input optical power and bias current, is experimentally demonstrated. The beat-signal gain improvement ranges from 35 to 0 dB over a frequency range of 0.5-3.5 GHz, thereby improving the noise performance of the phase shifter. Tunable phase shifts of up to 55 degrees are possible over this frequency range. Simulations that show good agreement with experiment, based on a wideband dynamic model that includes spontaneous emission and band structure based calculations of the amplifier active region material, are also presented. (C) 2014 Elsevier B.V. All rights reserved.
10.1016/j.optcom.2014.11.087
Grant Details