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Microstructured fiber sealed-void interferometric humidity sensor

Journal Article


Abstract


  • This paper reports a simple sealed-void photonic

    crystal fiber (PCF) interferometric humidity sensor that operates

    in reflection mode and is presented here for the first time. The

    sensor was fabricated by collapsing the holes of the PCF at

    both ends to form an interferometer, which excites the core

    and cladding modes. As a result, the reflection spectrum of the

    sensor exhibits a sinusoidal interference peak that shifts when

    the adsorption and desorption of H2O molecules happen along

    the surface of the PCF. This 1.3 cm long PCF interferometer

    sensor exhibits a sensitivity of 20.3 and 61.6 pm/%RH in the

    range of 60%RH–80%RH and 80%RH–95%RH, respectively.

    The sealed-void configuration sensor has a fast response time of

    ∼750 ms and also protects the holes of the PCF from contamination.

    In addition, the all-silica nature of the sensing element has

    made the sensor insensitive to temperature. The proposed sensor

    has potential in medical applications for monitoring breathing

    conditions.

UOW Authors


  •   Noor, Yusof Mohd. (external author)
  •   Rajan, Ginu
  •   Peng, Gang-Ding (external author)

Publication Date


  • 2014

Citation


  • M. Yusof Mohd. Noor, G. Rajan & G. Peng, "Microstructured fiber sealed-void interferometric humidity sensor," IEEE Sensors Journal, vol. 14, (4) pp. 1154-1159, 2014.

Scopus Eid


  • 2-s2.0-84896880860

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4300

Number Of Pages


  • 5

Start Page


  • 1154

End Page


  • 1159

Volume


  • 14

Issue


  • 4

Place Of Publication


  • United States

Abstract


  • This paper reports a simple sealed-void photonic

    crystal fiber (PCF) interferometric humidity sensor that operates

    in reflection mode and is presented here for the first time. The

    sensor was fabricated by collapsing the holes of the PCF at

    both ends to form an interferometer, which excites the core

    and cladding modes. As a result, the reflection spectrum of the

    sensor exhibits a sinusoidal interference peak that shifts when

    the adsorption and desorption of H2O molecules happen along

    the surface of the PCF. This 1.3 cm long PCF interferometer

    sensor exhibits a sensitivity of 20.3 and 61.6 pm/%RH in the

    range of 60%RH–80%RH and 80%RH–95%RH, respectively.

    The sealed-void configuration sensor has a fast response time of

    ∼750 ms and also protects the holes of the PCF from contamination.

    In addition, the all-silica nature of the sensing element has

    made the sensor insensitive to temperature. The proposed sensor

    has potential in medical applications for monitoring breathing

    conditions.

UOW Authors


  •   Noor, Yusof Mohd. (external author)
  •   Rajan, Ginu
  •   Peng, Gang-Ding (external author)

Publication Date


  • 2014

Citation


  • M. Yusof Mohd. Noor, G. Rajan & G. Peng, "Microstructured fiber sealed-void interferometric humidity sensor," IEEE Sensors Journal, vol. 14, (4) pp. 1154-1159, 2014.

Scopus Eid


  • 2-s2.0-84896880860

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4300

Number Of Pages


  • 5

Start Page


  • 1154

End Page


  • 1159

Volume


  • 14

Issue


  • 4

Place Of Publication


  • United States