A high-<i>Q</i> microwave photonic filter by using an SOA-based active mode-locked fiber ring laser

En-ming Xu; Fei Wang; Pei-li Li

doi:10.1007/s11801-013-2414-y

Optoelectronics Letters ›› 2013, Vol. 9 ›› Issue (2) : 97-100. DOI: 10.1007/s11801-013-2414-y

Article

A high-Q microwave photonic filter by using an SOA-based active mode-locked fiber ring laser

En-ming Xu12414^,^a ,
Fei Wang22414 ,
Pei-li Li12414

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Abstract

A high-Q microwave photonic filter using a semiconductor optical amplifier (SOA)-based mode-locking fiber ring laser is proposed, analyzed and experimentally demonstrated. The proposed microwave photonic filter can realize a high-Q frequency response, it is compact without an optical source, and it can be easily tuned by adjusting an optical variable delay line in a ring cavity. A result with a Q-factor of about 236 and a rejection ratio of about 45 dB is obtained. The measured results and the theoretical estimations agree very well.

Keywords

Semiconductor Optical Amplifier / Free Spectral Range / Vector Network Analyzer / Rejection Ratio / Optical Source

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En-ming Xu, Fei Wang, Pei-li Li. A high-Q microwave photonic filter by using an SOA-based active mode-locked fiber ring laser. Optoelectronics Letters, 2013, 9(2): 97‒100 https://doi.org/10.1007/s11801-013-2414-y

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This work has been supported by the National Natural Science Foundation of China (No.61007064), the Jiangsu Natural Science Foundation (No.BK2012432), the Key Project of Science and Technology Research of the Ministry of Education (No.211149), and the Brain Gain Foundation of Nanjing University of Posts and Telecommunications (No.NY211017).