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26 January 2016Tunable RF photonic phase shifter based on optical DSB modulation and FBG filtering
A broadband RF photonic phase shifter that can achieve the tunable phase shift with little RF amplitude variation is presented. It is based on homodyne mixing technique. The beating between phase-modulated optical carrier and the sidebands can generate RF signal with desired phase shift. Results show the RF phase shifter can achieve a continuous phase shift with low amplitude variation.
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Yongfeng Wei, Shanguo Huang, Kai Sun, Xinlu Gao, Wanyi Gu, "Tunable RF photonic phase shifter based on optical DSB modulation and FBG filtering," Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97960K (26 January 2016); https://doi.org/10.1117/12.2230640