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14 February 2019 Integratable microwave photonic phase shifter based on a tunable optical coupler
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Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110482T (2019) https://doi.org/10.1117/12.2519573
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China
Abstract
We propose a novel microwave photonic phase shifter (MWP-PS) architecture which is suitable for on-chip integration. The MWP-PS consists of a laser source, two identical phase modulators (PMs), a tunable optical coupler (TOC), an optical filter and a photodetector (PD). By introducing a microwave signal and its reversed counterpart to the two PMs, respectively, and using the optical filter to remove one of the generated sidebands, a phase shift with its value tuned by the coupling coefficient of the TOC will be introduced to the microwave signal after the PD. A proof-of-concept experiment is carried out. An MWP-PS with a 360° phase shift tuning range and an operational frequency range of 8-40 GHz is achieved.
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Jing Feng, Simin Li, Tianliang Wang, and Shilong Pan "Integratable microwave photonic phase shifter based on a tunable optical coupler", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110482T (14 February 2019); https://doi.org/10.1117/12.2519573
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