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Agarose coated single mode fiber bend for monitoring humidity

Conference Paper


Abstract


  • A relative humidity (RH) sensor measuring wide range of humidity variations based on a bent single mode optical fiber coated with Agarose is reported. When exposed to moisture the change in refractive index of the Agarose layer results in changes in the degree of coupling of the core mode to cladding modes and corresponding changes in the output power are observed in the transmission spectrum of the Agarose coated bent fiber. The sensor shows linear response in the range 25 %- 90 % RH. We show that humidity sensitivity of the sensor is wavelength dependant and high sensitivity is observed at higher wavelengths. The sensor response is fast, stable and reversible in nature. © 2011 SPIE.

UOW Authors


  •   Mathew, Jinesh (external author)
  •   Semenova, Yuliya (external author)
  •   Rajan, Ginu
  •   Farrell, Gerald (external author)

Publication Date


  • 2011

Citation


  • J. Mathew, Y. Semenova, G. Rajan & G. farrell, "Agarose coated single mode fiber bend for monitoring humidity," in Proceedings of SPIE - The International Society for Optical Engineering, 2011,

Scopus Eid


  • 2-s2.0-79958246940

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4379

Has Global Citation Frequency


Place Of Publication


  • United States

Abstract


  • A relative humidity (RH) sensor measuring wide range of humidity variations based on a bent single mode optical fiber coated with Agarose is reported. When exposed to moisture the change in refractive index of the Agarose layer results in changes in the degree of coupling of the core mode to cladding modes and corresponding changes in the output power are observed in the transmission spectrum of the Agarose coated bent fiber. The sensor shows linear response in the range 25 %- 90 % RH. We show that humidity sensitivity of the sensor is wavelength dependant and high sensitivity is observed at higher wavelengths. The sensor response is fast, stable and reversible in nature. © 2011 SPIE.

UOW Authors


  •   Mathew, Jinesh (external author)
  •   Semenova, Yuliya (external author)
  •   Rajan, Ginu
  •   Farrell, Gerald (external author)

Publication Date


  • 2011

Citation


  • J. Mathew, Y. Semenova, G. Rajan & G. farrell, "Agarose coated single mode fiber bend for monitoring humidity," in Proceedings of SPIE - The International Society for Optical Engineering, 2011,

Scopus Eid


  • 2-s2.0-79958246940

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4379

Has Global Citation Frequency


Place Of Publication


  • United States