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Scientific article
English

Long-distance OTDR using photon counting and large detection gates at telecom wavelength

Contributors

Scholder, François; Gautier, Jean-Daniel; Wegmuller, Mark; Gisin, Nicolas

Published in

Optics communications, vol. 213, no. 1-3, p. 57-61

Publication date

2002

Abstract

Photon-counting OTDRs are typically used in a mode with spatial resolutions in the centimeter range. Here we demonstrate that their sensitivity and dynamic range can be enlarged using lower resolutions. A 44-dB dynamic range was experimentally obtained at a wavelength of 1550 nm. This represents a 4-dB increase compared to state-of-the-art long-haul classical OTDRs having the same spatial resolution, and could even be extended to 6.5 dB when using a source with +13-dBm peak power. Furthermore we demonstrate an original solution to suppress perturbing dead-zones.

Keywords

  • Photon counting
  • Optical time-domain reflectometry

UNIGE affiliation entities

Citation (ISO format)

SCHOLDER, François et al. Long-distance OTDR using photon counting and large detection gates at telecom wavelength. In: Optics communications, 2002, vol. 213, n° 1-3, p. 57–61. doi: 10.1016/S0030-4018(02)02053-9

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://linkinghub.elsevier.com/retrieve/pii/S0030401802020539

Journal ISSN

0030-4018
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Technical informations

Creation

20/05/2014 14:28:00

First validation

20/05/2014 14:28:00

Update

14/03/2023 21:15:04

Status update

14/03/2023 21:15:04

Last indexation

30/10/2024 17:19:36
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