Ultralow-birefringence measurement in optical fibers by the twist method.

Ultralow-birefringence measurement in optical fibers by the twist method.
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DOI：
10.1364/ol.22.000877
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发表时间：
1997-06
期刊：
Optics letters
影响因子：
3.6
通讯作者：
A. Rodriguez;A. Khomenko;R. Cortes;A. García-Weidner
A. Rodriguez;A. Khomenko;R. Cortes;A. García-Weidner
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
A. Rodriguez;A. Khomenko;R. Cortes;A. García-Weidner

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We describe a simple method for measuring ultralow birefringence in optical fibers. It allows one to measure birefringence in the range of 4x10(-6) 1.25x10(-8) , which corresponds to the 0.2580-m range of the polarization beat length at the wavelength of 1 microm . A fiber section of a length shorter than the polarization beat length can be used for measurement. The measuring procedure involves measurement of the light intensity only and does not require an analysis of the light-polarization state. Experimental results for an optical fiber with a beat length of 1.9m are presented.