Experimental and Small-signal Analysis of Microwave Photonic Phase Shifter based on Slow and Fast Light using Linear and Nonlinear Semiconductor Optical Amplifiers

Hamdash, Noor; Sharaiha, Ammar; Rampone, Thierry; Morel, Pascal; Berre, Denis Le; Martin, Noham; Quendo, Cédric

doi:10.1109/mwp.2018.8552844

Cited by 2 publications

(1 citation statement)

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“…SOAs have been used as a freestanding device for MWP phase shifters and several works have covered tunable phase shifting based on CPO effects in SOA [5][6][7][8][9][10][11][12][13][14][15]. However, CPO techniques limit the operating frequency applications to few hundreds of GHz due to the SOA carrier lifetime [7] [11], when used for the generation of a time delay.…”

Section: Introductionmentioning

confidence: 99%

Small-Signal Analysis in Two Calculation Sections and Experimental Validation of Up-Converted Coherent Population Oscillations in Semiconductor Optical Amplifiers

et al. 2021

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This paper presents theoretical and experimental analysis of up-converted coherent population oscillations (Up-CPO) in semiconductor optical amplifiers (SOAs) for tunable optical phase shift applications at high frequencies. The study of Up-CPO frequency response is carried out by a small-signal analysis of a SOA modeled by two calculation sections in order to better take into account the nonlinear effects such as the SOA gain saturation. We demonstrate that we can fully determine the dynamic parameters of Up-CPO from the experimental frequency response of an optical probe signal obtained by cross-gain modulation mechanism. The Up-CPO frequency responses are measured for three SOAs with different cut-off frequencies up to 18.45 GHz. We finally validate experimentally the obtained analytical frequency responses for the three SOAs over different operating points, each characterized by the corresponding optical gain.

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