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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 22 — Nov. 15, 2008
  • pp: 2647–2649

Tilted fiber Bragg grating sensor interrogation system using a high-resolution silicon-on-insulator arrayed waveguide grating

Pavel Cheben, Edith Post, Siegfried Janz, Jacques Albert, Albane Laronche, Jens H. Schmid, Dan-Xia Xu, Boris Lamontagne, Jean Lapointe, André Delâge, and Adam Densmore  »View Author Affiliations


Optics Letters, Vol. 33, Issue 22, pp. 2647-2649 (2008)
http://dx.doi.org/10.1364/OL.33.002647


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Abstract

We report a compact high-resolution arrayed waveguide grating (AWG) interrogator system designed to measure the relative wavelength spacing between two individual resonances of a tilted fiber Bragg grating (TFBG) refractometer. The TFBG refractometer benefits from an internal wavelength and power reference provided by the core mode reflection resonance that can be used to determine cladding mode perturbations with high accuracy. The AWG interrogator is a planar waveguide device fabricated on a silicon-on-insulator platform, having 50 channels with a 0.18 nm wavelength separation and a footprint of 8 mm × 8 mm . By overlaying two adjacent interference orders of the AWG we demonstrate simultaneous monitoring of two widely separated resonances in real time with high wavelength resolution. The standard deviation of the measured wavelength shifts is 1.2 pm, and it is limited by the resolution of the optical spectrum analyzer used for the interrogator calibration measurements.

© 2008 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(130.3120) Integrated optics : Integrated optics devices
(350.2770) Other areas of optics : Gratings
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: July 16, 2008
Revised Manuscript: September 5, 2008
Manuscript Accepted: October 2, 2008
Published: November 12, 2008

Citation
Pavel Cheben, Edith Post, Siegfried Janz, Jacques Albert, Albane Laronche, Jens H. Schmid, Dan-Xia Xu, Boris Lamontagne, Jean Lapointe, André Delâge, and Adam Densmore, "Tilted fiber Bragg grating sensor interrogation system using a high-resolution silicon-on-insulator arrayed waveguide grating," Opt. Lett. 33, 2647-2649 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-22-2647

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