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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 706–708

High-resolution Fourier-transform spectrometer chip with microphotonic silicon spiral waveguides

Aitor V. Velasco, Pavel Cheben, Przemek J. Bock, André Delâge, Jens H. Schmid, Jean Lapointe, Siegfried Janz, María L. Calvo, Dan-Xia Xu, Mirosław Florjańczyk, and Martin Vachon  »View Author Affiliations

Optics Letters, Vol. 38, Issue 5, pp. 706-708 (2013)

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We report a stationary Fourier-transform spectrometer chip implemented in silicon microphotonic waveguides. The device comprises an array of 32 Mach–Zehnder interferometers (MZIs) with linearly increasing optical path delays between the MZI arms across the array. The optical delays are achieved by using Si-wire waveguides arranged in tightly coiled spirals with a compact device footprint of 12mm2. Spectral retrieval is demonstrated in a single measurement of the stationary spatial interferogram formed at the output waveguides of the array, with a wavelength resolution of 40 pm within a free spectral range of 0.75 nm. The phase and amplitude errors arising from fabrication imperfections are compensated using a transformation matrix spectral retrieval algorithm.

© 2013 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms

ToC Category:
Integrated Optics

Original Manuscript: December 21, 2012
Revised Manuscript: January 25, 2013
Manuscript Accepted: January 25, 2013
Published: February 25, 2013

Aitor V. Velasco, Pavel Cheben, Przemek J. Bock, André Delâge, Jens H. Schmid, Jean Lapointe, Siegfried Janz, María L. Calvo, Dan-Xia Xu, Mirosław Florjańczyk, and Martin Vachon, "High-resolution Fourier-transform spectrometer chip with microphotonic silicon spiral waveguides," Opt. Lett. 38, 706-708 (2013)

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