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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 1 — Jan. 1, 2007
  • pp: 188–191

Simultaneous dual free spectral range microwave photonic filter using a high-birefringence chirped grating in a Sagnac loop

Guoxiang Ning, Ping Shum, Sheel Aditya, and Yandong Gong  »View Author Affiliations


JOSA A, Vol. 24, Issue 1, pp. 188-191 (2007)
http://dx.doi.org/10.1364/JOSAA.24.000188


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Abstract

We propose a continuously tunable, dual free spectral range (FSR) photonic microwave notch filter configuration using a high-birefringence linearly chirped fiber Bragg grating (Hi-Bi LCFBG) that is connected in a Sagnac loop using a Hi-Bi coupler. The configuration employs double sideband modulation and can generate two FSRs simultaneously. The larger FSR corresponds to the differential time delay of the Hi-Bi LCFBG and the Hi-Bi pigtails of the coupler; the smaller FSR corresponds to the time delay between the arms of the Sagnac loop. Measured results demonstrate dual FSR, a large notch rejection, and that the FSR is easily tunable by tuning the LCFBG. We also present the filter transfer function for the design. Experimental results agree well with the theoretical analysis.

© 2006 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(350.2460) Other areas of optics : Filters, interference
(350.4010) Other areas of optics : Microwaves

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 31, 2006
Revised Manuscript: July 26, 2006
Manuscript Accepted: July 28, 2006

Citation
Guoxiang Ning, Ping Shum, Sheel Aditya, and Yandong Gong, "Simultaneous dual free spectral range microwave photonic filter using a high-birefringence chirped grating in a Sagnac loop," J. Opt. Soc. Am. A 24, 188-191 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-1-188

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