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Optical two-tone signal generation without use of optical filter for photonics-assisted radio-frequency quadrupling

机译:不使用用于光子学辅助射频四倍的滤光器的光二音信号生成

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Optical two-tone (OTT) signal generation is demonstrated without optical wavelength filtering for wavelength-free operation in radio-frequency (RF) upconversion assisted by photonics. This principle is based on selective polarization manipulation for the optical carrier; the optical carrier's polarization is first tilted, and the carrier is then suppressed using a polarizer. Owing to optimized conditions obtained from theoretical calculation and the high polarization extinction ratio achieving a 25.7-dB carrier suppression, a 40-GHz separated OTT signal is successfully generated by an optical intensity modulator driven by a 10-GHz sinusoidal RF signal. Conversion into a frequency-quadrupled RF signal is also demonstrated experimentally. (C) 2015 Optical Society of America
机译:在没有光波长滤波的情况下,通过光子学辅助的射频(RF)上变频中的无波长操作,演示了光二音(OTT)信号生成。这个原理是基于对光学载体的选择性偏振操作。首先倾斜光学载体的偏振,然后使用起偏器抑制载体。由于从理论计算获得的优化条件以及实现25.7 dB载波抑制的高偏振消光比,由10 GHz正弦RF信号驱动的光强度调制器成功生成了40 GHz分离的OTT信号。还通过实验证明了转换为四倍频的RF信号。 (C)2015年美国眼镜学会

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