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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 7793–7798

Fundamental limits to slow-light arrayed-waveguide-grating spectrometers

Zhimin Shi and Robert W. Boyd  »View Author Affiliations

Optics Express, Vol. 21, Issue 6, pp. 7793-7798 (2013)

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We present an analytical model that describes the limiting spectral performance of arrayed-waveguide-grating (AWG) spectrometers that incorporate slow-light methods. We show that the loss-limited spectral resolution of a slow-light grating-based spectrometer scales as the loss–group-index ratio of the waveguide array. We further show that one can achieve a spectral resolution of a few GHz using currently available slow-light photonic crystal waveguides while greatly shrinking the on-chip footprint of the spectrometer.

© 2013 OSA

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(130.5296) Integrated optics : Photonic crystal waveguides
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Slow and Fast Light

Original Manuscript: January 7, 2013
Revised Manuscript: March 8, 2013
Manuscript Accepted: March 15, 2013
Published: March 22, 2013

Zhimin Shi and Robert W. Boyd, "Fundamental limits to slow-light arrayed-waveguide-grating spectrometers," Opt. Express 21, 7793-7798 (2013)

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