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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 25271–25282

Switchable microwave photonic filter between high Q bandpass filter and notch filter with flat passband based on phase modulation

Yuan Yu, Enming Xu, Jianji Dong, Lina Zhou, Xiang Li, and Xinliang Zhang  »View Author Affiliations


Optics Express, Vol. 18, Issue 24, pp. 25271-25282 (2010)
http://dx.doi.org/10.1364/OE.18.025271


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Abstract

We propose and demonstrate a novel switchable microwave photonic filter based on phase modulation. Both a microwave high Q bandpass filter and a microwave notch filter with flat passband are achieved respectively. And the switchability between them by tuning the two tunable optical bandpass filters is demonstrated. We also present a theoretical model and analytical expression for the proposed scheme. A frequency response of a high Q bandpass filter with a Q factor of 327 and a rejection ratio of exceeding 42 dB, and a frequency response of a notch filter with flat passband with a rejection ratio exceeding 34 dB are experimentally obtained. The operation frequency of microwave photonic filter is around 20 GHz.

© 2010 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(350.4010) Other areas of optics : Microwaves

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 2, 2010
Revised Manuscript: September 14, 2010
Manuscript Accepted: September 14, 2010
Published: November 18, 2010

Citation
Yuan Yu, Enming Xu, Jianji Dong, Lina Zhou, Xiang Li, and Xinliang Zhang, "Switchable microwave photonic filter between high Q bandpass filter and notch filter with flat passband based on phase modulation," Opt. Express 18, 25271-25282 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-25271


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