Microwave photonic filter using air-guiding PBGF

Xianbin Yu; Xiaopeng Zheng; Hanyi Zhang

doi:10.1117/12.691565

3 October 2006 Microwave photonic filter using air-guiding PBGF

Xianbin Yu, Xiaopeng Zheng, Hanyi Zhang

Proceedings Volume 6351, Passive Components and Fiber-based Devices III; 635102 (2006) https://doi.org/10.1117/12.691565
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

Abstract

A novel tunable microwave notch filter based on air-guiding photonic bandgap fiber (AG-PBGF) is proposed and experimentally demonstrated. The operational principle of the proposed filter is analyzed in detail. Using the character of wavelength-dependent high birefringence of AG-PBGF, the frequency response of the polarization-dependent notch filter can be simply tuned by changing the incident optical wavelength, and its notch depth is dominated by the input azimuth angle. Moreover, the proposed filter is free from the coherence induced by the laser source. Therefore, the magnitude frequency response is robust. A piece of 20-m AG-PBGF is used in the experiment. As expected, the free-spectral range (FSR) changes from 22.4GHz to 8.74GHz when the wavelength from 1570nm to 1584nm and the largest notch depth is more than 40dB.

Citation Download Citation

Xianbin Yu, Xiaopeng Zheng, and Hanyi Zhang "Microwave photonic filter using air-guiding PBGF", Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 635102 (3 October 2006); https://doi.org/10.1117/12.691565

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KEYWORDS

Birefringence

Polarization

Microwave radiation

Signal processing

Linear filtering

Filtering (signal processing)

Modulators

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