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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 23 — Nov. 8, 2010
  • pp: 24195–24205

High-resolution spectrally-resolved fiber optic sensor interrogation system based on a standard DWDM laser module

Matej Njegovec and Denis Donlagic  »View Author Affiliations

Optics Express, Vol. 18, Issue 23, pp. 24195-24205 (2010)

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This paper presents a spectrally-resolved integration system suitable for the reading of Bragg grating, all-fiber Fabry-Perot, and similar spectrally-resolved fiber-optic sensors. This system is based on a standard telecommunication dense wavelength division multiplexing transmission module that contains a distributed feedback laser diode and a wavelength locker. Besides the transmission module, only a few additional opto-electronic components were needed to build an experimental interrogation system that demonstrated over a 2 nm wide wavelength interrogation range, and a 1 pm wavelength resolution. When the system was combined with a typical Bragg grating sensor, a strain resolution of 1 με and temperature resolution of 0.1 °C were demonstrated experimentally. The proposed interrogation system relies entirely on Telecordia standard compliant photonic components and can thus be straightforwardly qualified for use within the range of demanding applications.

© 2010 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:

Original Manuscript: September 15, 2010
Revised Manuscript: October 23, 2010
Manuscript Accepted: October 25, 2010
Published: November 3, 2010

Matej Njegovec and Denis Donlagic, "High-resolution spectrally-resolved fiber optic sensor interrogation system based on a standard DWDM laser module," Opt. Express 18, 24195-24205 (2010)

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