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  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference
  • OSA Technical Digest (CD) (Optica Publishing Group, 2009),
  • paper CThE1
  • https://doi.org/10.1364/CLEO.2009.CThE1

Ultra-sensitive Photonic Crystal Fiber Refractive Index Sensor

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Abstract

We introduce a refractive index sensing geometry exploiting modes beyond cutoff in a selectively infiltrated PCF. We demonstrate a detection limit of 4.6×10−7 RIU and sensitivity of 30,100nm/RIU, a one-order-of-magnitude improvement over previous PCF sensors.

© 2009 Optical Society of America

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