Overcoming the OTDR dead-zone using a few-mode fiber

Islam Ashry; Yuan Mao; Biwei Wang; Frode Hveding; Tien Khee Ng; Boon S. Ooi

doi:10.1117/12.2577031

Overcoming the OTDR dead-zone using a few-mode fiber

Islam Ashry, Yuan Mao, Biwei Wang, Frode Hveding, Tien Khee Ng, Boon S. Ooi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Optical-time-domain-reflectometer (OTDR) suffers from the existence of dead-zones along a deployed fiber under test (FUT). Within a dead-zone, OTDR typically fails to provide any reliable diagnostic information. We here use a fewmode fiber (FMF) to completely cancel the OTDR dead-zone produced by the front facet reflection of the FUT. In particular, we launch the optical pulses in the form of the LP01 mode into the FMF, and meanwhile we record the Rayleigh signal from the higher-order modes. The developed system successfully monitors the amplitude and frequency of a vibration event produced by a piezoelectric transducer (PZT) located within the dead-zone.

Original language	English (US)
Title of host publication	Photonic Instrumentation Engineering VIII
Publisher	SPIE
ISBN (Print)	9781510642218
DOIs	https://doi.org/10.1117/12.2577031
State	Published - Mar 5 2021

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https://repository.kaust.edu.sa/bitstream/10754/669300/1/Overcoming%20the%20OTDR%20Dead-Zone%20Using%20a%20Few-Mode%20Fiber.pdf

Cite this

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title = "Overcoming the OTDR dead-zone using a few-mode fiber",

abstract = "Optical-time-domain-reflectometer (OTDR) suffers from the existence of dead-zones along a deployed fiber under test (FUT). Within a dead-zone, OTDR typically fails to provide any reliable diagnostic information. We here use a fewmode fiber (FMF) to completely cancel the OTDR dead-zone produced by the front facet reflection of the FUT. In particular, we launch the optical pulses in the form of the LP01 mode into the FMF, and meanwhile we record the Rayleigh signal from the higher-order modes. The developed system successfully monitors the amplitude and frequency of a vibration event produced by a piezoelectric transducer (PZT) located within the dead-zone.",

author = "Islam Ashry and Yuan Mao and Biwei Wang and Frode Hveding and Ng, {Tien Khee} and Ooi, {Boon S.}",

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AU - Ashry, Islam

AU - Mao, Yuan

AU - Wang, Biwei

AU - Hveding, Frode

AU - Ng, Tien Khee

AU - Ooi, Boon S.

N1 - KAUST Repository Item: Exported on 2021-12-14

PY - 2021/3/5

Y1 - 2021/3/5

N2 - Optical-time-domain-reflectometer (OTDR) suffers from the existence of dead-zones along a deployed fiber under test (FUT). Within a dead-zone, OTDR typically fails to provide any reliable diagnostic information. We here use a fewmode fiber (FMF) to completely cancel the OTDR dead-zone produced by the front facet reflection of the FUT. In particular, we launch the optical pulses in the form of the LP01 mode into the FMF, and meanwhile we record the Rayleigh signal from the higher-order modes. The developed system successfully monitors the amplitude and frequency of a vibration event produced by a piezoelectric transducer (PZT) located within the dead-zone.

AB - Optical-time-domain-reflectometer (OTDR) suffers from the existence of dead-zones along a deployed fiber under test (FUT). Within a dead-zone, OTDR typically fails to provide any reliable diagnostic information. We here use a fewmode fiber (FMF) to completely cancel the OTDR dead-zone produced by the front facet reflection of the FUT. In particular, we launch the optical pulses in the form of the LP01 mode into the FMF, and meanwhile we record the Rayleigh signal from the higher-order modes. The developed system successfully monitors the amplitude and frequency of a vibration event produced by a piezoelectric transducer (PZT) located within the dead-zone.

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UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11693/2577031/Overcoming-the-OTDR-dead-zone-using-a-few-mode-fiber/10.1117/12.2577031.full

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M3 - Conference contribution

SN - 9781510642218

BT - Photonic Instrumentation Engineering VIII

PB - SPIE

ER -

Overcoming the OTDR dead-zone using a few-mode fiber

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