All optical microwave photonic filter with bandpass and notch filtering shapes

Yuan Yu; Jianji Dong; Xiang Li; Lina Zhou; Xinliang Zhang

doi:10.1117/12.888151

18 February 2011 All optical microwave photonic filter with bandpass and notch filtering shapes

Yuan Yu, Jianji Dong, Xiang Li, Lina Zhou, Xinliang Zhang

Proceedings Volume 7988, Optical Transmission Systems, Switching, and Subsystems VIII; 79881Z (2011) https://doi.org/10.1117/12.888151
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

Abstract

We propose and demonstrate a novel microwave photonic filter based on an electro-optic phase modulator (EOPM), a tunable optical bandpass filter (TOBF) and a cascaded fiber delay interferometer (DI). The TOBF is slightly detuned relative to the optical carrier. By using the complementary optical responses of the two output ports of DI, one port of DI is detuned the same as the TOBF and the other is detuned opposite to the TOBF. Thus a microwave bandpass filter and a microwave notch filter are obtained at the two ports of DI simultaneously. In the experiment, the rejection ratios of obtained microwave notch filter and bandpass filter are 22 dB and 16 dB, respectively.

Citation Download Citation

Yuan Yu, Jianji Dong, Xiang Li, Lina Zhou, and Xinliang Zhang "All optical microwave photonic filter with bandpass and notch filtering shapes", Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79881Z (18 February 2011); https://doi.org/10.1117/12.888151

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KEYWORDS

Microwave radiation

Bandpass filters

Microwave photonic filters

Linear filtering

Modulation

Optical filters

Modulators

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