Chinese Optics Letters, Volume. 14, Issue 4, 040601(2016)
Microwave photonic phase shifter with spectral separation processing using a linear chirped fiber Bragg grating
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Fig. 1. Experimental setup of the proposed linear photonic RF phase shifter with the optical carrier delay processing. OC, optical coupler.
Fig. 3. Reflection spectrum and delay response of an optical signal about the LCFBG.
Fig. 4. Different wavelengths corresponding to different phase shifts. (a) Optical carrier time delay characteristics of different wavelengths and (b) RF signal phase shift over a frequency range from 10 to 20 GHz.
Fig. 5. Measured power spectra comparison of the transmitted RF signal at 13 and 18 GHz with the optical carrier delay processing and with the sideband delay processing, respectively.
Fig. 6. Measured phase noise spectra comparison of the transmitted RF signal at 13 and 18 GHz with the sideband delay processing and with the optical carrier delay processing.
Fig. 7. Power of the phase-shifted microwave signal with the optical carrier delay processing when achieving different phase shifts.
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Wensheng Zhai, Xinlu Gao, Wenjing Xu, Mingyang Zhao, Mutong Xie, Shanguo Huang, Wanyi Gu, "Microwave photonic phase shifter with spectral separation processing using a linear chirped fiber Bragg grating," Chin. Opt. Lett. 14, 040601 (2016)
Paper Information
Category: Fiber Optics and Optical Communications
Received: Nov. 20, 2015
Accepted: Jan. 25, 2016
Published Online: Aug. 6, 2018
The Author Email: Shanguo Huang (shghuang@bupt.edu.cn)
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