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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 2 — Jan. 15, 2009
  • pp: 184–186

Design of a compact static Fourier transform spectrometer in integrated optics based on a leaky loop structure

Bruno Martin, Alain Morand, Pierre Benech, Gregory Leblond, Sylvain Blaize, Gilles Lerondel, Pascal Royer, Pierre Kern, and Etienne Le Coarer  »View Author Affiliations


Optics Letters, Vol. 34, Issue 2, pp. 184-186 (2009)
http://dx.doi.org/10.1364/OL.34.000184


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Abstract

A compact static Fourier transform spectrometer for integrated optics is proposed. It is based on a plane leaky loop structure combined with a plane waveguide. The interference pattern produced in the loop structure leaks outside of it and is guided in the plane waveguide to the photodetector array. This configuration allows one to control the shape of the field pattern at the end of the plane waveguide. A large fringe pattern with a high interference fringe contrast is obtained. A two-dimensional model based on an aperiodic Fourier modal method is used to modelize the coupling between the bent and the plane waveguides, completed with the Helmholtz–Kirchhoff propagation. This concept gives access to plan and compact spectrometers requiring only a single low-cost realization process step. The simulation has been done to realize a spectrometer in glass integrated optics ( Δ λ = 6.1 nm at 1500 nm ).

© 2009 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices
(230.3120) Optical devices : Integrated optics devices
(300.6190) Spectroscopy : Spectrometers

ToC Category:
Integrated Optics

History
Original Manuscript: July 16, 2008
Revised Manuscript: November 7, 2008
Manuscript Accepted: November 18, 2008
Published: January 14, 2009

Citation
Bruno Martin, Alain Morand, Pierre Benech, Gregory Leblond, Sylvain Blaize, Gilles Lerondel, Pascal Royer, Pierre Kern, and Etienne Le Coarer, "Design of a compact static Fourier transform spectrometer in integrated optics based on a leaky loop structure," Opt. Lett. 34, 184-186 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-2-184


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