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Conferences > CLEOPR > 2017 > IFOSS > s1570
  • 2017 Conference on Lasers and Electro-Optics Pacific Rim
  • (Optica Publishing Group, 2017),
  • paper s1570

Graphene-Coated In-Fiber Mach-Zehnder Interferometer for Ammonia Gas Sensing

Ting Hao and Kin Seng Chiang

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Abstract

An in-fiber Mach-Zehnder interferometer formed by connecting a graphene-coated fiber section between two long-period fiber gratings is proposed and demonstrated for ammonia gas sensing. Our experimental sensor shows a sensitivity of ~3.5 pm/ppm over the gas concentration range from ~3 to ~180 ppm.

© 2017 Optical Society of America

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