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Proceedings Paper

Long period gratings in highly birefringent microfibers
Author(s): Wa Jin; Haifeng Xuan; Wei Jin
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Paper Abstract

We report the fabrication of long-period gratings (LPGs) in highly birefringent (Hi-Bi) microfibers. The LPGs were fabricated by using a femtosecond infrared laser to modify the surface or a CO2 laser to induce micro-tapers periodically along the Hi-Bi microfibers. These LPGs have pitches from tens to hundreds of micrometers and very strong polarization dependent resonances. A LPG fabricated on a Hi-Bi microfiber with a major-diameter of ~2.8 μm and an ellipticity of ~0.7 demonstrated a refractive index sensitivity of ~4623 nm/RIU in water.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577N (2 June 2014); doi: 10.1117/12.2059025
Show Author Affiliations
Wa Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Haifeng Xuan, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Wei Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)


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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