Temperature Monitoring System Based on Fiber Bragg Grating Arrays with a Wavelength Tunable OTDR

Tae Joong EOM; Myoung Jin KIM; Byeong Ha LEE; In Chol PARK

doi:10.1093/ietele/e88-c.5.933

Temperature Monitoring System Based on Fiber Bragg Grating Arrays with a Wavelength Tunable OTDR

Tae Joong EOM, Myoung Jin KIM, Byeong Ha LEE, In Chol PARK

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We have implemented a distributed sensor system based on an array of fiber Bragg gratings (FBGs), which can measure up to 1000 points with a single piece of fiber. The system consists of FBGs having the same resonant wavelengths and small reflectivities (0.1 dB), and a wavelength tunable optical time-domain reflectometer (OTDR). To interrogate the distributed grating sensors and to address the event locations simultaneously, we have utilized the tunable OTDR. A thermoelectric temperature controller was used to tune the emission wavelength of the OTDR. The operating temperature of the laser diode was changed. By tuning the pulse wavelength of the OTDR, we could identify the FBGs whose resonant wavelengths were under change within the operating wavelength range of the DFB LD. A novel sensor cable with dry core structure and tensile cable was fabricated to realize significant construction savings at an industrial field and in-door and out-door applications. For experiments, a sensor cable having 52 gratings with 10 m separations was fabricated. To prevent confusion with unexpected signals from the front-panel connector zone of the OTDR, a 1 km buffer cable was installed in front of the OTDR. The proposed system could distinguish and locate the gratings that were under temperature variation from 20 to 70.

Publication: IEICE TRANSACTIONS on Electronics Vol.E88-C No.5 pp.933-937

Publication Date: 2005/05/01

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DOI: 10.1093/ietele/e88-c.5.933

Type of Manuscript: Special Section PAPER (Joint Special Section on Recent Progress in Optoelectronics and Communications)

Category: Optical Fibers, Cables and Fiber Devices

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Tae Joong EOM, Myoung Jin KIM, Byeong Ha LEE, In Chol PARK, "Temperature Monitoring System Based on Fiber Bragg Grating Arrays with a Wavelength Tunable OTDR" in IEICE TRANSACTIONS on Electronics, vol. E88-C, no. 5, pp. 933-937, May 2005, doi: 10.1093/ietele/e88-c.5.933.
Abstract: We have implemented a distributed sensor system based on an array of fiber Bragg gratings (FBGs), which can measure up to 1000 points with a single piece of fiber. The system consists of FBGs having the same resonant wavelengths and small reflectivities (0.1 dB), and a wavelength tunable optical time-domain reflectometer (OTDR). To interrogate the distributed grating sensors and to address the event locations simultaneously, we have utilized the tunable OTDR. A thermoelectric temperature controller was used to tune the emission wavelength of the OTDR. The operating temperature of the laser diode was changed. By tuning the pulse wavelength of the OTDR, we could identify the FBGs whose resonant wavelengths were under change within the operating wavelength range of the DFB LD. A novel sensor cable with dry core structure and tensile cable was fabricated to realize significant construction savings at an industrial field and in-door and out-door applications. For experiments, a sensor cable having 52 gratings with 10 m separations was fabricated. To prevent confusion with unexpected signals from the front-panel connector zone of the OTDR, a 1 km buffer cable was installed in front of the OTDR. The proposed system could distinguish and locate the gratings that were under temperature variation from 20 to 70.
URL: https://globals.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.5.933/_p

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@ARTICLE{e88-c_5_933,
author={Tae Joong EOM, Myoung Jin KIM, Byeong Ha LEE, In Chol PARK, },
journal={IEICE TRANSACTIONS on Electronics},
title={Temperature Monitoring System Based on Fiber Bragg Grating Arrays with a Wavelength Tunable OTDR},
year={2005},
volume={E88-C},
number={5},
pages={933-937},
abstract={We have implemented a distributed sensor system based on an array of fiber Bragg gratings (FBGs), which can measure up to 1000 points with a single piece of fiber. The system consists of FBGs having the same resonant wavelengths and small reflectivities (0.1 dB), and a wavelength tunable optical time-domain reflectometer (OTDR). To interrogate the distributed grating sensors and to address the event locations simultaneously, we have utilized the tunable OTDR. A thermoelectric temperature controller was used to tune the emission wavelength of the OTDR. The operating temperature of the laser diode was changed. By tuning the pulse wavelength of the OTDR, we could identify the FBGs whose resonant wavelengths were under change within the operating wavelength range of the DFB LD. A novel sensor cable with dry core structure and tensile cable was fabricated to realize significant construction savings at an industrial field and in-door and out-door applications. For experiments, a sensor cable having 52 gratings with 10 m separations was fabricated. To prevent confusion with unexpected signals from the front-panel connector zone of the OTDR, a 1 km buffer cable was installed in front of the OTDR. The proposed system could distinguish and locate the gratings that were under temperature variation from 20 to 70.},
keywords={},
doi={10.1093/ietele/e88-c.5.933},
ISSN={},
month={May},}

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TY - JOUR
TI - Temperature Monitoring System Based on Fiber Bragg Grating Arrays with a Wavelength Tunable OTDR
T2 - IEICE TRANSACTIONS on Electronics
SP - 933
EP - 937
AU - Tae Joong EOM
AU - Myoung Jin KIM
AU - Byeong Ha LEE
AU - In Chol PARK
PY - 2005
DO - 10.1093/ietele/e88-c.5.933
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 2005
AB - We have implemented a distributed sensor system based on an array of fiber Bragg gratings (FBGs), which can measure up to 1000 points with a single piece of fiber. The system consists of FBGs having the same resonant wavelengths and small reflectivities (0.1 dB), and a wavelength tunable optical time-domain reflectometer (OTDR). To interrogate the distributed grating sensors and to address the event locations simultaneously, we have utilized the tunable OTDR. A thermoelectric temperature controller was used to tune the emission wavelength of the OTDR. The operating temperature of the laser diode was changed. By tuning the pulse wavelength of the OTDR, we could identify the FBGs whose resonant wavelengths were under change within the operating wavelength range of the DFB LD. A novel sensor cable with dry core structure and tensile cable was fabricated to realize significant construction savings at an industrial field and in-door and out-door applications. For experiments, a sensor cable having 52 gratings with 10 m separations was fabricated. To prevent confusion with unexpected signals from the front-panel connector zone of the OTDR, a 1 km buffer cable was installed in front of the OTDR. The proposed system could distinguish and locate the gratings that were under temperature variation from 20 to 70.
ER -