Feedback stabilized interrogation technique for EFPI/FBG hybrid fiber-optic pressure and temperature sensors

Kort Bremer; Elfed Lewis; Gabriel Leen; Brian Moss; Steffen Lochmann; Ingo A.R. Mueller

doi:10.1109/JSEN.2011.2140104

Feedback stabilized interrogation technique for EFPI/FBG hybrid fiber-optic pressure and temperature sensors

Kort Bremer, Elfed Lewis, Gabriel Leen, Brian Moss, Steffen Lochmann, Ingo A.R. Mueller

Research output: Contribution to journal › Article › peer-review

Abstract

This paper discusses a Single Wavelength Interrogation (SWI) technique used to measure fast changing pressure related signals and over a large operational temperature range. The novel technique is based on a fiber-optic pressure and temperature hybrid sensor, and a feedback stabilization technique for a tunable laser source. The fiber-optic hybrid sensor consists of a miniature diaphragm based all-silica Extrinsic Fabry-Perot Interferometric (EFPI) Fiber-Optic Pressure Sensor (FOPS) which additionally incorporates a Fiber Bragg Grating (FBG) temperature sensor. The FBG temperature sensor is used as a feedback element to stabilize the output wavelength of the tunable laser source to operate always in the linear range of the EFPI FOPS.

Original language	English
Article number	5744089
Pages (from-to)	133-138
Number of pages	6
Journal	IEEE Sensors Journal
Volume	12
Issue number	1
DOIs	https://doi.org/10.1109/JSEN.2011.2140104
Publication status	Published - 2012
Externally published	Yes

Keywords

Fabry-Perot
Fiber Bragg grating
fiber-optic sensor
interrogation
pressure
temperature

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10.1109/JSEN.2011.2140104

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abstract = "This paper discusses a Single Wavelength Interrogation (SWI) technique used to measure fast changing pressure related signals and over a large operational temperature range. The novel technique is based on a fiber-optic pressure and temperature hybrid sensor, and a feedback stabilization technique for a tunable laser source. The fiber-optic hybrid sensor consists of a miniature diaphragm based all-silica Extrinsic Fabry-Perot Interferometric (EFPI) Fiber-Optic Pressure Sensor (FOPS) which additionally incorporates a Fiber Bragg Grating (FBG) temperature sensor. The FBG temperature sensor is used as a feedback element to stabilize the output wavelength of the tunable laser source to operate always in the linear range of the EFPI FOPS.",

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AU - Moss, Brian

AU - Lochmann, Steffen

AU - Mueller, Ingo A.R.

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AB - This paper discusses a Single Wavelength Interrogation (SWI) technique used to measure fast changing pressure related signals and over a large operational temperature range. The novel technique is based on a fiber-optic pressure and temperature hybrid sensor, and a feedback stabilization technique for a tunable laser source. The fiber-optic hybrid sensor consists of a miniature diaphragm based all-silica Extrinsic Fabry-Perot Interferometric (EFPI) Fiber-Optic Pressure Sensor (FOPS) which additionally incorporates a Fiber Bragg Grating (FBG) temperature sensor. The FBG temperature sensor is used as a feedback element to stabilize the output wavelength of the tunable laser source to operate always in the linear range of the EFPI FOPS.

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Feedback stabilized interrogation technique for EFPI/FBG hybrid fiber-optic pressure and temperature sensors

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Keywords

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