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Bierlich, J.
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Publications (5/5 displayed)
- 2017Fabry-Perot interferometer based on array of microspheres for temperature sensing
- 2013Microcavity Tip Temperature Sensor based on Post-Processing
- 2013Post-Processing of Fabry-Perot Microcavity Tip Sensorcitations
- 2012Nanoscopic tip sensors fabricated by gas phase etching of optical glass fibers
- 2012Towards the control of highly sensitive Fabry-Perot strain sensor based on hollow-core ring photonic crystal fibercitations
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document
Microcavity Tip Temperature Sensor based on Post-Processing
Abstract
A Fabry-Perot microcavity tip temperature sensor based on a special design double-cladding optical fiber is proposed. The produced fiber has pure silica core and outer cladding and a silica ring doped with phosphorous. The whole ring region is removed by chemical etching post-processing. Consequently, light will be guided in the core region. In a first step, the double-cladding optical fiber is spliced to single mode fiber. Afterwards, the tip is etched in a solution of 48% hydrofluoric acid. The inner cladding will be etched faster, and the core becomes suspended and surrounded by air. The Fabry-Perot microcavity tip sensor is subjected to temperature, and a linear sensitivity of 14.6 pm/degrees C is obtained.