On a possible method to measure the radial profile of the photoelastic constant in step-index optical fiber

被引：3

作者：

Acheroy, Sophie ^{[1
]}

Merken, Patrick ^{[1
]}

Geernaert, Thomas ^{[2
]}

Ottevaer, Heidi ^{[2
]}

Thienpon, Hugo ^{[2
]}

Berghmans, Francis ^{[2
]}

机构：

[1] Royal Mil Acad, Dept Commun Informat Syst & Sensors CISS, Ave Renaissance 30, B-1000 Brussels, Belgium

[2] Vrije Univ Brussel, Dept Appl Phys & Photon, Brussels Photon Team B PHOT, B-1050 Brussels, Belgium

来源：

OPTICAL SENSING AND DETECTION III | 2014年 / 9141卷

关键词：

Stress-optic coefficient; Photoelastic coefficient; fiber optic characterization; inverse Abel transform; Senarmont principle; COEFFICIENT;

D O I：

10.1117/12.2050343

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a measurement method to determine the radial distribution of the photoelastic coefficient C in a step-index optical glass fiber. This method is based on the measurement of the retardance profile of a transversally illuminated fiber for increasing tensile load. The radial profile C(r) is obtained from the inverse Abel transform of this retardance profile. We measured three step-index glass fibers with three different core radii The results suggest that C may be constant across the fiber section and that the mean absolute value of C is slightly larger for glass fibers than for fused silica. Additionally, the shape of the actual refractive index profile can be derived from the retardance measurements.

引用

页数：8