Laser-machined all-fiber in-line tip pressure sensor

Zengling Ran; Yunjiang Rao; Jian Zhang; Bing Xu

doi:10.1117/12.835840

5 October 2009 Laser-machined all-fiber in-line tip pressure sensor

Zengling Ran, Yunjiang Rao, Jian Zhang, Bing Xu

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75032X (2009) https://doi.org/10.1117/12.835840
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

A miniature all-fiber in-line tip pressure sensor fabricated by 157nm laser pulses is proposed and demonstrated, for the first time to our knowledge. Such a pressure sensor can be operated under high temperature due to its all silica structure. The sensor has been tested for pressure sensing over 0MPa~60MPa, showing a pressure sensitivity of ~83.3pm/MPa, an excellent linearity of 99.998%, and a long-term stability of ±0.03MPa, respectively. Such a miniature fiber-optic pressure sensor could find important applications in automotive and aerospace industries, and down-hole monitoring, etc, due to its extreme compactness, capability for operation at high temperature, easy fabrication, excellent stability, good potential for mass-production.

Citation Download Citation

Zengling Ran, Yunjiang Rao, Jian Zhang, and Bing Xu "Laser-machined all-fiber in-line tip pressure sensor", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75032X (5 October 2009); https://doi.org/10.1117/12.835840

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