Title :
Fiber torsion sensor with directional discrimination based on twist-induced circular birefringence in unbalanced Mach-Zehnder interferometer
Author :
Nan-Kuang Chen ; Jheng-Jyun Wang ; Gia-Ling Cheng ; Wood-Hi Cheng ; Shum, Perry Ping
Author_Institution :
Dept. of Electro-Opt. Eng., Nat. United Univ., Miaoli, Taiwan
Abstract :
We demonstrate fiber torsion sensor based on twist-induced circular birefringence in unbalanced Mach-Zehnder interferometer with two dissimilar abrupt tapers in a short (~1.4cm) highly Er/Yb co-doped fiber for simultaneous measurements of twisting angle and direction.
Keywords :
Mach-Zehnder interferometers; angular measurement; birefringence; erbium; fibre optic sensors; ytterbium; Er-Yb codoped fiber; abrupt tapers; direction measurements; directional discrimination; fiber torsion sensor; twist-induced circular birefringence; twisting angle measurements; unbalanced Mach-Zehnder interferometer; Erbium; Optical fiber sensors; Optical fibers; Propagation losses;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
