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Characteristics of Long-Period Fiber Grating Utilizing Periodic Stress Relaxation

Shigefumi YAMASAKI, Masaaki AKIYAMA, Kenji NISHIDE, Akira WADA, Ryozo YAMAUCHI

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Summary :

Long-period fiber gratings (LPGs) using a high-silica core fiber are presented. A high-silica core fiber has a residual stress in the core, and the grating structure is formed by stress releasing of the core using a focused CO2 laser beam. The dependence of the transmission spectrum on temperature and tensile strength is measured, and low dependence compared with conventional LPGs is observed. These unique characteristics are caused by the difference of temperature and tensile strength changes of the effective indices for the fundamental propagation mode and the cladding mode in the high-silica core fiber.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.3 pp.440-443
Publication Date
2000/03/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Optical Fiber Sensors)
Category
Passive and Active Devices for Photonic Sensing

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