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Proceedings Paper

Tunable dual-bandpass microwave photonic filter based on a single broadband light source
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Paper Abstract

In this paper, a tunable dual-bandpass microwave photonic filter (MPF) based on a single broadband light source (BBS) has been proposed and experimentally demonstrated. By cascading two chirped fiber Bragg gratings (CFBG) with different reflection bandwidth and chirp parameter, the different delay of the modulated light signal in the system is introduced and consequently, a MPF with two different passbands can be realized. Two different passbands with the frequency of 6.75 GHz and 16.01 GHz is obtained in the experiment. By changing the free spectral range (FSR) of the Mach Zehnder interferometer (MZI) through an optical tunable delay line (OTDL), the central frequency of the two passbands can be changed. The dual-bandpass MPF presented in this paper is easy to implement and has good tunability and stability.

Paper Details

Date Published: 12 December 2018
PDF: 6 pages
Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490H (12 December 2018); doi: 10.1117/12.2504145
Show Author Affiliations
Biao Zhao, Air Force Early Warning Academy (China)
Pengfei Du, Air Force Early Warning Academy (China)
Jianghai Wo, Air Force Early Warning Academy (China)
Wenshan Cong, Air Force Early Warning Academy (China)
Junkai Zhang, Air Force Early Warning Academy (China)
Lan Yu, Air Force Early Warning Academy (China)


Published in SPIE Proceedings Vol. 10849:
Fiber Optic Sensing and Optical Communication
Jie Zhang; Songnian Fu; Qunbi Zhuge; Ming Tang; Tuan Guo, Editor(s)

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