Optical Capillary Fiber Mode Interferometer for Pressure Sensing

Guillermo Salceda-Delgado; Amy Van Newkirk; Jose Enrique Antonio-Lopez; Alejandro Martinez-Rios; Axel Schulzgen; Rodrigo Amezcua-Correa

doi:10.1109/JSEN.2019.2953683

Optical Capillary Fiber Mode Interferometer for Pressure Sensing

Guillermo Salceda-Delgado
, Amy Van Newkirk
, Jose Enrique Antonio-Lopez
, Alejandro Martinez-Rios
, Axel Schulzgen
, Rodrigo Amezcua-Correa

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

22 Scopus citations

Abstract

A compact optical fiber pressure sensor is experimentally presented. It consists of a few millimeter long section of a capillary optical fiber spliced between two single-mode fibers (SMFs). Due to the interference between propagating light in the capillary fiber caused by the fundamental core mode of the input SMF, an interference pattern is generated in the transmission spectrum of the device through the output SMF. When pressure is applied to the device, the distributed forces on the capillary tube fiber lead to changes in the visibility of the interference fringes and a wavelength shift. The visibility changes are directly correlated to the pressure applied to the device. The dynamic range of the device can be tailored by selecting a suitable length of the capillary fiber. The response of the device to temperature changes is also discussed.

Original language	English (US)
Article number	8901212
Pages (from-to)	2253-2260
Number of pages	8
Journal	IEEE Sensors Journal
Volume	20
Issue number	5
DOIs	https://doi.org/10.1109/JSEN.2019.2953683
State	Published - Mar 1 2020

All Science Journal Classification (ASJC) codes

Instrumentation
Electrical and Electronic Engineering

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10.1109/JSEN.2019.2953683

Cite this

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title = "Optical Capillary Fiber Mode Interferometer for Pressure Sensing",

abstract = "A compact optical fiber pressure sensor is experimentally presented. It consists of a few millimeter long section of a capillary optical fiber spliced between two single-mode fibers (SMFs). Due to the interference between propagating light in the capillary fiber caused by the fundamental core mode of the input SMF, an interference pattern is generated in the transmission spectrum of the device through the output SMF. When pressure is applied to the device, the distributed forces on the capillary tube fiber lead to changes in the visibility of the interference fringes and a wavelength shift. The visibility changes are directly correlated to the pressure applied to the device. The dynamic range of the device can be tailored by selecting a suitable length of the capillary fiber. The response of the device to temperature changes is also discussed.",

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AU - Salceda-Delgado, Guillermo

AU - Van Newkirk, Amy

AU - Antonio-Lopez, Jose Enrique

AU - Martinez-Rios, Alejandro

AU - Schulzgen, Axel

AU - Amezcua-Correa, Rodrigo

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AB - A compact optical fiber pressure sensor is experimentally presented. It consists of a few millimeter long section of a capillary optical fiber spliced between two single-mode fibers (SMFs). Due to the interference between propagating light in the capillary fiber caused by the fundamental core mode of the input SMF, an interference pattern is generated in the transmission spectrum of the device through the output SMF. When pressure is applied to the device, the distributed forces on the capillary tube fiber lead to changes in the visibility of the interference fringes and a wavelength shift. The visibility changes are directly correlated to the pressure applied to the device. The dynamic range of the device can be tailored by selecting a suitable length of the capillary fiber. The response of the device to temperature changes is also discussed.

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Optical Capillary Fiber Mode Interferometer for Pressure Sensing

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