Highly Sensitive Long-period Fiber-grating Strain Sensor with Low Temperature Sensitivity

Overview

Journal Opt Lett

Specialty Ophthalmology

Date 2006 Nov 14

PMID 17099734

Citations 12

Authors

Yi-Ping Wang

Limin Xiao

D N Wang

Wei Jin

Affiliations

Soon will be listed here.

Abstract

A long-period fiber-grating sensor with a high strain sensitivity of -7.6 pm/microepsilon and a low temperature sensitivity of 3.91 pm/ degrees C is fabricated by use of focused CO(2) laser beam to carve periodic grooves on a large- mode-area photonic crystal fiber. Such a strain sensor can effectively reduce the cross-sensitivity between strain and temperature, and the temperature-induced strain error obtained is only 0.5 microepsilon/ degrees C without using temperature compensation.

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