期刊
OPTICS EXPRESS
卷 25, 期 18, 页码 22066-22081出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.022066
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- Mexican Council of Science and Technology (CONACYT) [CB-2010-01-153857]
We have inserted into an unbiased semiconductor optical amplifier (SOA) a powerful control beam, with photon energy slightly smaller than that of the band-gap of its active region, for exciting two-photon absorption and the quadratic Stark effect. For the available SOA, we estimated these phenomena generated a nonlinear absorption coefficient beta=-865 cm/ GW and induced an appreciable birefringence inside the amplifier waveguide, which significantly modified the polarization-state of a probe beam. Based on these effects, we have experimentally demonstrated the operation of an all-optical buffer, using an 80 Gb/s optical pulse comb, as well as an unbiased SOA, which was therefore, devoid of amplified spontaneous emission and pattern effects. (C) 2017 Optical Society of America
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