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Proceedings Paper

Cascaded microwave photonic filters with multiple infinite impulse responses based on wavelength conversion
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Paper Abstract

A new cascaded microwave photonic filter consisting of two or more infinite impulse response (IIR) filters based on active loops. is presented. Owing to wavelength conversion, the interference between the modulated optical signals of different taps from different active loops can be avoided and the stable transmission characteristic of the cascaded filter can then be achieved. The cascaded filter can increase the free spectral range (FSR) and the Q value significently by designing the FSR differences of the IIR filters. The cascaded filter with two IIR filters is demonstrated, and the measured results of a high Q of 3338 and rejection ratio of about 40 dB are obtained. The tunability can also be realized.

Paper Details

Date Published: 30 November 2011
PDF: 6 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83071D (30 November 2011); doi: 10.1117/12.904344
Show Author Affiliations
Enming Xu, Nanjing Univ. of Posts and Telecommunications (China)
Fei Wang, Chongqing Univ. of Technology (China)
Lipei Li, Nanjing Univ. of Posts and Telecommunications (China)
Yuan Yu, Huazhong Univ. of Science and Technology (China)
Xinliang Zhang, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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