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Tunable chirped microwave photonic filter employing a dispersive Mach-Zehnder structure. | LitMetric
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Tunable chirped microwave photonic filter employing a dispersive Mach-Zehnder structure.

Xiaoxiao Xue Xiaoping Zheng Hanyi Zhang Bingkun Zhou

Opt Lett

State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, China.

Published: September 2011

A Mach-Zehnder structure with modulation in one arm and dispersive time delay in the other is proposed to implement highly flexible single-bandpass chirped microwave photonic filters based on broadband optical sources. Both the amplitude response and the time delay slope can be fully reconfigured via control of the optical spectra and dispersion. The passband can also be widely tuned without changing the shape. A chirped filter with a bandwidth of ∼4 GHz, a delay slope of ∼-0.6 ns/GHz, and a tunability up to 40 GHz is demonstrated experimentally.

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 Source
http://dx.doi.org/10.1364/OL.36.003518DOI Listing

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