9 December 2015 Reconfigurable microwave photonic filter based on polarization modulation
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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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Enming Xu, Enming Xu, Shilong Pan, Shilong Pan, Peili Li, Peili Li, } "Reconfigurable microwave photonic filter based on polarization modulation," Optical Engineering 55(3), 031120 (9 December 2015). https://doi.org/10.1117/1.OE.55.3.031120 . Submission:

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