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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 25 — Sep. 1, 2010
  • pp: 4715–4722

Analysis of inverse-Gaussian apodized fiber Bragg grating

Bo Lin, Swee Chuan Tjin, Nam Quoc Ngo, Yufeng Song, Sheng Liang, Li Xia, and Meng Jiang  »View Author Affiliations

Applied Optics, Vol. 49, Issue 25, pp. 4715-4722 (2010)

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Inverse-Gaussian apodized fiber Bragg gratings (IGAFBGs) are numerically studied using the transfer matrix method and fabricated by the commonly used phase-mask scanning technique in a single-step scanning process. The IGAFBG can serve as a dual-wavelength passband filter, whose wavelength spacing can be continuously tuned by introducing a tunable chirp through applying a strain gradient in principle. Also, an IGAFBG with identical dual passbands having 0.144 nm wavelength spacing is experimentally achieved. We also show that an IGAFBG can act as a multipassband filter with varied free spectral ranges (FSRs), and the largest FSR variation of this IGAFBG is nearly seven times more than that in a comparable FBG pair filter. An IGAFBG with varied FSRs of 16.125 , 12.25 , 8.5 , and 6.375 GHz is fabricated. This multipassband varying-FSR IGAFBG filter can find applications in step-tunable microwave generations.

© 2010 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 4, 2010
Manuscript Accepted: July 21, 2010
Published: August 24, 2010

Bo Lin, Swee Chuan Tjin, Nam Quoc Ngo, Yufeng Song, Sheng Liang, Li Xia, and Meng Jiang, "Analysis of inverse-Gaussian apodized fiber Bragg grating," Appl. Opt. 49, 4715-4722 (2010)

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