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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 1 — Jan. 1, 2009
  • pp: 91–98

Analysis of radiation-mode coupling in reflective and transmissive tilted fiber Bragg gratings

Shaohua Lu, Ou Xu, Suchun Feng, and Shuisheng Jian  »View Author Affiliations

JOSA A, Vol. 26, Issue 1, pp. 91-98 (2009)

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Radiation-mode coupling is stronger and more efficient in tilted fiber Bragg gratings than in other fiber gratings; it can be used to good advantage in such fields as optical communication and optical sensors. A simplified coupled-mode theory (CMT) approach to the analysis of radiation-mode coupling is proposed for what we believe to be the first time, whose validity and accuracy is demonstrated by comparing its simulation results with that of the complete CMT equations and the volume current method (VCM). With the simplified CMT approach, a theoretical spectral analysis of coupling from core mode to radiation modes in both reflective and transmissive tilted fiber Bragg gratings is presented. The influence of tilt angle on the transmission spectrum characteristics is comprehensively investigated. The different dependences between s-polarized and p-polarized radiation-mode coupling on grating tilt angle are discussed, and an analysis is performed on how to obtain a high-performance in-fiber polarizer that involves a compromise between polarization extinction and insertion loss.

© 2008 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics
(350.5610) Other areas of optics : Radiation

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 14, 2008
Revised Manuscript: October 29, 2008
Manuscript Accepted: October 31, 2008
Published: December 12, 2008

Shaohua Lu, Ou Xu, Suchun Feng, and Shuisheng Jian, "Analysis of radiation-mode coupling in reflective and transmissive tilted fiber Bragg gratings," J. Opt. Soc. Am. A 26, 91-98 (2009)

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