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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 27 — Sep. 20, 2007
  • pp: 6770–6773

Transmission loss of phase-shifted fiber Bragg gratings in lossy materials: a theoretical and experimental investigation

Yu Liu, Li Wei, and John W. Y. Lit  »View Author Affiliations

Applied Optics, Vol. 46, Issue 27, pp. 6770-6773 (2007)

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Narrow linewidth transmission filters in lossy materials based phase-shifted fiber Bragg gratings have been investigated experimentally and analytically. A novel matrix technique has been developed in calculation of the transmission loss and linewidth. The elements of the matrix simply consist of the coefficients of the coupled mode equations. Simulation shows a small fiber loss could result in a significant transmission loss, which has not been explained properly yet to our knowledge. For phase-shifted gratings in erbium-doped fibers, the absorption could result in over 20   dB loss at transmission wavelengths. Such an approach can also be used to analyze cladding modes, radiation mode, and complex structure gratings.

© 2007 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.1480) Optical devices : Bragg reflectors

ToC Category:
Diffraction and Gratings

Original Manuscript: May 30, 2007
Manuscript Accepted: July 14, 2007
Published: September 12, 2007

Yu Liu, Li Wei, and John W. Y. Lit, "Transmission loss of phase-shifted fiber Bragg gratings in lossy materials: a theoretical and experimental investigation," Appl. Opt. 46, 6770-6773 (2007)

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