An Optical Parametric Amplifier via $ \chi ^{(2)}$ in AlGaAs Waveguides
نویسندگان
چکیده
We report parametric gain by utilizing $ \chi^{(2)} non-linearities in a semiconductor Bragg Reflection Waveguide (BRW) waveguide chip. Under the two-mode degenerate type II phase matching, it can be shown that more than 18 dBs of for both TE and TM modes is tenable 100s micrometers device length. Polarization insensitive attained within 1550 nm region spectrum. These AlGaAs BRW waveguides exhibit sub-photon per pulse sensitivity. This sharp contrast to other types devices which utilize \chi^{(3)} $, where pump wavelength vicinity signal wavelength. sensitivity, reached 0.1~photon/pulse, usher new era on-chip quantum information processing using compact, micrometer-scale devices.
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ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 2022
ISSN: ['0733-8724', '1558-2213']
DOI: https://doi.org/10.1109/jlt.2022.3186551