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A quasi-mode interpretation of radiation modes in long-period fiber gratings

A quasi-mode interpretation of radiation modes in long-period fiber gratings
A quasi-mode interpretation of radiation modes in long-period fiber gratings
We have found an efficient approximation based on a quasi-mode method to analyze radiation-mode coupling in long-period fiber grating devices, and which was deduced by consideration of the best confinement condition of radiation-mode spectra inside an optical fiber. A single-mode representation via the quasi-mode method enables one to solve the radiation-mode-coupling problems analytically, which is the advantage of the method. The numerical accuracy is found to quite acceptable in comparison with the conventional method of the Green-function representation of radiation-modes via numerical computation of the integral. Utilizing the proposed method, we present several numerical examples for radiation-mode coupling problems both in uniform and non-uniform LPFGs.
0018-9197
1135-1142
Jeong, Y.
85777b88-d35d-4e46-addb-1894fde2385d
Lee, B.
ebdd36ef-1a79-40af-b33a-8bd06a252e19
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Jeong, Y.
85777b88-d35d-4e46-addb-1894fde2385d
Lee, B.
ebdd36ef-1a79-40af-b33a-8bd06a252e19
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Jeong, Y., Lee, B., Nilsson, J. and Richardson, D.J. (2003) A quasi-mode interpretation of radiation modes in long-period fiber gratings. IEEE Journal of Quantum Electronics, 39 (9), 1135-1142. (doi:10.1109/JQE.2003.816087).

Record type: Article

Abstract

We have found an efficient approximation based on a quasi-mode method to analyze radiation-mode coupling in long-period fiber grating devices, and which was deduced by consideration of the best confinement condition of radiation-mode spectra inside an optical fiber. A single-mode representation via the quasi-mode method enables one to solve the radiation-mode-coupling problems analytically, which is the advantage of the method. The numerical accuracy is found to quite acceptable in comparison with the conventional method of the Green-function representation of radiation-modes via numerical computation of the integral. Utilizing the proposed method, we present several numerical examples for radiation-mode coupling problems both in uniform and non-uniform LPFGs.

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Published date: 2003
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 13859
URI: https://eprints.soton.ac.uk/id/eprint/13859
ISSN: 0018-9197
PURE UUID: 7c775bf0-8c4b-45de-ac44-ac0953a046e0
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 22 Dec 2004
Last modified: 20 Jul 2019 01:24

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