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Proceedings Paper

Temperature compensation of fiber-optic current sensors
Author(s): Georg M. Müller; Lin Yang; Berkan Gülenaltin; Andreas Frank; Klaus Bohnert
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Paper Abstract

We report the first fabrication of polarization rocking filters in a highly birefringent elliptical microfiber. The rocking filters are made by periodically heating/twisting a microfiber with an ellipticity of ~0.7 and a diameter of ~2.8 μm along its major axis. Strong input polarization suppression of ~20 dB is achieved at a resonant wavelength of ~1556.4 nm with a device length of ~3.12 mm. High-order polarization rocking filter was used to measure the refractive index with sensitivity of 32036 nm/RIU.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915705 (2 June 2014); doi: 10.1117/12.2059035
Show Author Affiliations
Georg M. Müller, ABB Ltd. (Switzerland)
Lin Yang, ABB Ltd. (Switzerland)
Berkan Gülenaltin, ABB Ltd. (Switzerland)
Andreas Frank, ABB Ltd. (Switzerland)
Klaus Bohnert, ABB Ltd. (Switzerland)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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