Microwave photonic interference mitigation filter based on semiconductor optical amplifier

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

doi:10.1117/12.851477

1 December 2009 Microwave photonic interference mitigation filter based on semiconductor optical amplifier

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

Proceedings Volume 7632, Optical Transmission Systems, Switching, and Subsystems VII; 76322D (2009) https://doi.org/10.1117/12.851477
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

A microwave photonic interference mitigation filter is proposed and experimentally demonstrated. The structure is based on a recirculating delay line loop comprising a semiconductor optical amplifier (SOA) and a tunable narrowband optical filter. Converted signal used as negative tap is generated through wavelength conversion employing cross-gain modulation of amplified spontaneous emission spectrum of the SOA. The converted signal circulating in the RDL loop realizes a high quality factor (Q) response after photo-detection. A bandpass response with negative coefficients combined with a broadband allpass response achieves a notch response with flat passband.

Citation Download Citation

Enming Xu, Xinliang Zhang, Lina Zhou, Yu Zhang, Yuan Yu, Fei Wang, and Dexiu Huang "Microwave photonic interference mitigation filter based on semiconductor optical amplifier", Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76322D (1 December 2009); https://doi.org/10.1117/12.851477

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