6533b7d9fe1ef96bd126d676
RESEARCH PRODUCT
Highly sensitive optical hydrogen sensor using circular Pd-coated singlemode tapered fibre
Antonio DiezJose L. CruzMiguel V. AndrésJoel Villatorosubject
Materials scienceHydrogenbusiness.industryResponse timechemistry.chemical_elementÒpticaHydrogen sensorSubwavelength-diameter optical fibreWavelengthOpticsTransmission (telecommunications)chemistrysense organsElectrical and Electronic EngineeringbusinessAbsorption (electromagnetic radiation)Sensitivity (electronics)description
A novel optical hydrogen sensor, based on the absorption change of the evanescent fields in a circular Pd-coated singlemode tapered fibre is presented. The proposed sensor is polarisation independent and its sensitivity is adjustable by means of the taper diameter, interaction length, and/or light wavelength. A simple light transmission measurement setup is used to test the sensor. The sensor is suitable for the detection of low hydrogen concentrations with high sensitivity and fast time response. Transmission changes as high as 60% are demonstrated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-01-01 |