A microwave photonic notch filter based on semiconductor optical amplifier and optical filter

Enming Xu; Xinliang Zhang; Xiang Li; Lina Zhou; Yu Zhang; Yuan Yu; Fei Wang; Dexiu Huang

doi:10.1117/12.843112

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26 October 2009 A microwave photonic notch filter based on semiconductor optical amplifier and optical filter

Enming Xu, Xinliang Zhang, Xiang Li, Lina Zhou, Yu Zhang, Yuan Yu, Fei Wang, Dexiu Huang

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Proceedings Volume 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration; 75160Y (2009) https://doi.org/10.1117/12.843112
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

A novel microwave photonic notch filter structure is proposed and experimentally demonstrated. The structure is based on a recirculating delay line loop consisting of an optical variable delay line, a semiconductor optical amplifier (SOA) and a tunable narrowband optical filter. Negative tap is generated using wavelength conversion based on cross-gain modulation of amplified spontaneous emission spectrum of the SOA. A narrow bandpass response with negative coefficients and a broadband all-pass response are combined to achieve a narrow notch response with flat passband which can eliminate interference with minimal impact on the expected signal. Experimental results show good agreement with theoretical analysis.

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Enming Xu, Xinliang Zhang, Xiang Li, Lina Zhou, Yu Zhang, Yuan Yu, Fei Wang, and Dexiu Huang "A microwave photonic notch filter based on semiconductor optical amplifier and optical filter", Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160Y (26 October 2009); https://doi.org/10.1117/12.843112

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