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Simplified optical generation of microwave signal based on polarization multiplexing using an optical phase modulator
Author(s) -
Xu Wenjing,
Gao Xinlu,
Zhao Mingyang,
Xie Mutong,
Huang Shanguo
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31000
Subject(s) - optical carrier transmission rates , polarizer , optics , phase modulation , microwave , signal (programming language) , sideband , compatible sideband transmission , materials science , photodiode , optical communications repeater , optical modulation amplitude , optical filter , electro optic modulator , optoelectronics , radio over fiber , optical modulator , optical fiber , optical performance monitoring , optical amplifier , physics , wavelength division multiplexing , wavelength , phase noise , telecommunications , computer science , laser , programming language , birefringence
A new method to generate microwave signal with frequency doubled of the RF signal using an optical phase modulator by simply adjusting the polarization angle of the polarizer without any optical filters is experimentally proposed. The optical carrier is 19 dB lower than the 2 first‐order sidebands, which is better than the traditional optical carrier suppression double sideband modulation scheme. After detected by a high speed photodiode, a high spectrum purity 28 GHz microwave signal is generated easily. In addition, as pure optical carrier can also be recovered easily, the proposed scheme is cost‐effective and may be useful for the radio over fiber system with wavelength reuse.