Investigation of Phase-Modulator-Based All-Optical Bandpass Microwave Filter
Journal of Lightwave Technology, Vol. 23, Issue 4, pp. 1721- (2005)
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Abstract
Theoretical analysis and experimental implementation of an all-optical bandpass microwave filter are presented. Bandpass filtering is implemented using an electrooptic phase modulator combined with a dispersive device to eliminate the baseband resonance of a typical low-pass filter. In addition to bandpass operation, the proposed filter also provides an improved mainlobe-to-sidelobe ratio (MSR) and a reduced mainlobe bandwidth compared with those of the conventional microwave filters with windowing. A four-tap bandpass microwave filter with a 3-dB mainlobe bandwidth of 2.65 GHz and an MSR of 30 dB is demonstrated. The filter performances, including the reconfigurability, tunability, and the dynamic range, are also discussed.
© 2005 IEEE
Citation
Fei Zeng and Jianping Yao, "Investigation of Phase-Modulator-Based All-Optical Bandpass Microwave Filter," J. Lightwave Technol. 23, 1721- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-4-1721
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