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Micromachining of an In-Fiber Extrinsic Fabry-Perot Interferometric (MEFPI) Sensor by Using a Femtosecond Laser

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Abstract:

This paper reports a novel micro extrinsic fiber-optic F-P interferometric (MEFPI) sensor micromachined on a conventional optical fiber (Corning SMF-28) by using a near-infrared femtosecond laser, for the first time to the best of our knowledge. The strain and temperature characteristics of such a sensor were investigated and the experimental results show that the strain and temperature sensitivities are 0.006nm/με and -0.0017nm/°C, respectively. This type of MEFPI sensors has a number of advantages when compared with conventional EFPI sensors, such as easy fabrication, high integration degree, good reliability, low temperature cross-sensitivity, low cost, and capability for mass-production, offering great potential for a wide range of sensing applications.

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Periodical:

Key Engineering Materials (Volumes 364-366)

Pages:

1203-1206

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.364-366.1203

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Online since:

December 2007

Authors:

Yun Jiang Rao, Ming Deng, Tao Zhu, Qing Tao Tang, Guang Hua Cheng

Keywords:

Femtosecond Laser, Fiber-Optic Extrinsic Fabry-Perot Interferometer (EFPI) Sensor, Laser Micromachining, Optic Fibre Sensor

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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