Acceleration of Carrier Lifetime in Gain-Clamped Semiconductor Optical Amplifiers

Autor: O. M. Kharraz, A. S. M. Supa'at, A. F. Abas, M. T. Alresheedi, M. A. Mahdi
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IEEE Photonics Journal, Vol 10, Iss 5, Pp 1-13 (2018)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2018.2863254
Popis: A new method to accelerate the carrier lifetime in semiconductor optical amplifiers (SOAs) is experimentally demonstrated. The four-wave mixing (FWM) effect is induced without recourse to external optical light sources. A pair of fiber Bragg gratings is utilized to generate pre-spectral sliced seed light channels as FWM inputs, by reflecting the backward amplified spontaneous emission from the SOA in a gain-clamped configuration. The theory predicts a three times shorter carrier lifetime, compared to coherent inputs in a travelling-wave arrangement. Furthermore, this method can be a more accurate measure of the nonlinear parameters of SOAs rather than conventional techniques, owing to the polarization-independent nature of the corresponding incoherent products.
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