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Applied Optics

Applied Optics


  • Vol. 37, Iss. 23 — Aug. 10, 1998
  • pp: 5469–5471

Recirculating fiber delay-line filter with a fiber Bragg grating

Sungchul Kim and Byoungho Lee  »View Author Affiliations

Applied Optics, Vol. 37, Issue 23, pp. 5469-5471 (1998)

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We propose a new recirculating fiber delay-line filter structure. In the proposed system a fiber Bragg grating (FBG) is used as a multireflection mirror in a fiber delay loop, and an erbium-doped fiber is used to provide gain in the loop. By adjusting parameters such as the coupling efficiency, the reflectivity of the FBG, and the gain, we can change the characteristics of the filter transfer function.

© 1998 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics
(070.6020) Fourier optics and signal processing : Continuous optical signal processing

Original Manuscript: January 21, 1998
Revised Manuscript: May 12, 1998
Published: August 10, 1998

Sungchul Kim and Byoungho Lee, "Recirculating fiber delay-line filter with a fiber Bragg grating," Appl. Opt. 37, 5469-5471 (1998)

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