OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 37, Iss. 31 — Nov. 1, 1998
  • pp: 7223–7228

Demonstration of long-period-grating efficient couplings with an external medium of a refractive index higher than that of silica

Olivier Duhem, Jean-François Henninot, Marc Warenghem, and Marc Douay  »View Author Affiliations

Applied Optics, Vol. 37, Issue 31, pp. 7223-7228 (1998)

View Full Text Article

Enhanced HTML    Acrobat PDF (91 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We discuss the behavior of the transmission spectra of a long-period grating (LPG) with an external medium of refractive index higher than that of silica. We studied the evolution of the features of LPG’s surrounded by several liquid media for several kinds of fiber. The study demonstrated that the behavior depends strongly on the fiber type. Efficient couplings (efficiency greater than 50%) have been obtained with an external medium of a refractive index larger than that of silica. This result indicates that a LPG can operate with surrounding materials of a refractive index higher than that of silica, promising new applications for LPG’s as active optical filters.

© 1998 Optical Society of America

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(050.1950) Diffraction and gratings : Diffraction gratings
(060.2310) Fiber optics and optical communications : Fiber optics
(160.2290) Materials : Fiber materials

Original Manuscript: April 15, 1998
Revised Manuscript: July 14, 1998
Published: November 1, 1998

Olivier Duhem, Jean-François Henninot, Marc Warenghem, and Marc Douay, "Demonstration of long-period-grating efficient couplings with an external medium of a refractive index higher than that of silica," Appl. Opt. 37, 7223-7228 (1998)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, “Long-period fiber gratings as band-rejection filters,” J. Lightwave Technol. 14, 58–65 (1996). [CrossRef]
  2. E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, “Gain spectrum flattening of erbium-doped fiber amplifier using long-period gratings,” in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.
  3. V. Bhatia, A. M. Vengsarkar, “Optical fiber long-period grating sensors,” Opt. Lett. 21, 692–694 (1996). [CrossRef] [PubMed]
  4. A. S. Kurkov, M. Douay, O. Duhem, B. Leleu, J. F. Henninot, J. F. Bayon, L. Rivoallan, “Long-period fibre grating as a wavelength selective polarisation element,” Electron. Lett. 33, 616–618 (1997). [CrossRef]
  5. B. Ortega, L. Dong, W. F. Liu, J. P. de Sandro, L. Reekie, S. I. Tsypina, V. N. Bagratashvili, R. I. Laming, “High-performance optical fiber polarizers based on long-period gratings in birefringent optical fibers,” IEEE Photon. Technol. Lett. 9, 1370–1372 (1997). [CrossRef]
  6. B. H. Lee, Y. Liu, S. B. Lee, S. S. Choi, J. N. Jang, “Displacements of the resonant peaks of a long-period fiber grating induced by a change of ambient refractive index,” Opt. Lett. 22, 1769–1771 (1997). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited