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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4601–4610

CWDM self-referencing sensor network based on ring resonators in reflective configuration

J. Montalvo, C. Vázquez, and D. S. Montero  »View Author Affiliations

Optics Express, Vol. 14, Issue 11, pp. 4601-4610 (2006)

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A new scalable self-referencing sensor network with low insertion losses implemented in Coarse Wavelength Division Multiplexing (CWDM) technology is reported. It allows obtaining remote self-referenced measurements with a full-duplex fibre downlead up to 35 km long, with no need for optical amplification. Fibre Bragg gratings (FBG) are used in order to achieve a reflective configuration, thus increasing the sensitivity of the optical transducers. Low-cost off-the-shelf devices in CWDM technology can be used to implement and scale the network. Ring resonator (RR) based incoherent interferometers at the measuring points are used as self-referencing technique. A theoretical analysis of power budget of the topology is reported, with a comparison between the proposed network and a conventional star topology. Finally, the new configuration has been experimentally demonstrated.

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4250) Fiber optics and optical communications : Networks
(230.1480) Optical devices : Bragg reflectors
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 10, 2006
Revised Manuscript: May 19, 2006
Manuscript Accepted: May 20, 2006
Published: May 29, 2006

Julio Montalvo, Carmen Vázquez, and David S. Montero, "CWDM self-referencing sensor network based on ring resonators in reflective configuration," Opt. Express 14, 4601-4610 (2006)

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  1. J.M. Baptista, J.L. Santos, A.S. Lage, "Mach-Zehnder and Michelson topologies for self-referencing fiber optic intensity sensors," Opt. Eng. 39, 1636-1644 (2000). [CrossRef]
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  7. J. Montalvo, C. Vázquez, D.S. Montero, "Frequency response of two ring-resonators in series using fibre Bragg Gratings," in Proc. Fourth Spanish Meeting on Optoelectronics (OPTOEL‘05), pp. 201-205 (2005).
  8. C. Vázquez, J. Montalvo, D.S. Montero, Electronics Technology Department, Carlos III University of Madrid, 15 Butarque Street, Leganés, Madrid, are preparing a manuscript to be called "Self-referencing fiber-optic intensity sensors using Ring Resonators and Fibre Bragg Gratings."

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