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Optical Engineering

Reconfigurable microwave photonic filter based on polarization modulation
Author(s): Enming Xu; Shilong Pan; Peili Li
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Paper Abstract

A reconfigurable microwave photonic filter based on a polarization modulator (PolM) is proposed and experimentally demonstrated. The PolM together with a polarization controller (PC) and a polarization beam splitter (PBS) implements two complementary intensity modulations in two separated branches. Then, optical components are inserted in the two branches to realize a bandpass filter and an allpass filter, respectively. When the two branches are combined by a second PBS, a filter with a frequency response that equals the subtraction of the frequency responses of the allpass filter and bandpass filter is achieved. By adjusting the PCs placed before the second PBS, a notch filter with a tunable notch depth or a bandpass filter can be achieved.

Paper Details

Date Published: 9 December 2015
PDF: 5 pages
Opt. Eng. 55(3) 031120 doi: 10.1117/1.OE.55.3.031120
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Enming Xu, Nanjing University of Posts and Telecommunications (China)
Shilong Pan, Nanjing Univ. of Aeronautics and Astronautics (China)
Peili Li, Nanjing Univ. of Posts and Telecommunications (China)

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