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Conferences > AOE > 2008 > SaE > SaE3
  • Asia Optical Fiber Communication and Optoelectronic Exposition and Conference
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper SaE3
  • •https://doi.org/10.1364/AOE.2008.SaE3

Temperature dependent mode transition in high refractive index coated long period gratings

Haimei Luo, Xinwan Li, Shaoshi Wang, Xiang Wang, and Jianping Chen

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Abstract

Nano-scale HRI Liquid crystal (LC) coatings are evenly smeared along Long Period Gratings (LPGs). Experimental results show that the transition between cladding modes and overlay modes occurs when the refractive index of the LC layer is changed from 1.477 to 1.515 by increasing temperature. The sensitivity enhancement to HRI in the transition region is approximately 6 times the sensitivity outside the transition region.

© 2008 Optical Society of America

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