Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10318
Title: Birefringence of hybrid PCF and its sensitivity to strain and temperature
Authors: Pang, M
Xiao, LM
Jin, W 
Cerqueira S , JA
Keywords: Fiber optics sensors
High-birefringence
Hybrid fiber
Photonic crystal fibers
Issue Date: 2012
Publisher: Institute of Electrical and Electronics Engineers
Source: Journal of lightwave technology, 2012, v. 30, no. 10, 6150985, p. 1422-1432 How to cite?
Journal: Journal of lightwave technology 
Abstract: The modal and group birefringence of a hybrid photonic crystal fiber (hybrid PCF) and the sensitivities of modal birefringence of hybrid PCF to strain and temperature are investigated. The hybrid PCF composes of air-holes and Ge-doped silica rods surrounding a silica core region and light is confined to the core by hybrid index-guiding and photonic bandgap effects. A theoretical model was established and used to calculate these birefringence properties as functions of Ge concentration and diameter of the Ge-doped region. In experiments, the birefringence properties of a hybrid PCF made by University of Bath were measured by using a Sagnac interferometer. The experimental results show that the sensitivities of fringe minimum of this Sagnac interferometer to strain and temperature, at the wavelength of 1550 nm, were 2.01 nm/m?` and -0.334 nm/?XC, respectively, which agree well with the theoretical predictions. The model may be used to design hybrid PCFs with desired birefringence properties.
URI: http://hdl.handle.net/10397/10318
ISSN: 0733-8724
EISSN: 1558-2213
DOI: 10.1109/JLT.2012.2187429
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