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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 1 — Jan. 2, 2012
  • pp: 354–363

Ultra-sensitive chip scale Sagnac gyroscope based on periodically modulated coupling of a coupled resonator optical waveguide

Christopher Sorrentino, John R. E. Toland, and Christopher P. Search  »View Author Affiliations

Optics Express, Vol. 20, Issue 1, pp. 354-363 (2012)

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We analyze the sensitivity to inertial rotations Ω of a micron scale integrated gyroscope consisting of a coupled resonator optical waveguide (CROW). We show here that by periodic modulation of the evanescent coupling between resonators, the sensitivity to rotations can be enhanced by a factor up to 109 in comparison to a conventional CROW with uniform coupling between resonators. Moreover, the overall shape of the transmission through this CROW superlattice is qualitatively changed resulting in a single sharp transmission resonance located at Ω = 0s−1 instead of a broad transmission band. The modulated coupling therefore allows the CROW gyroscope to operate without phase biasing and with sensitivities suitable for inertial navigation even with the inclusion of resonator losses.

© 2011 OSA

OCIS Codes
(060.2800) Fiber optics and optical communications : Gyroscopes
(130.2790) Integrated optics : Guided waves
(230.7370) Optical devices : Waveguides

ToC Category:

Original Manuscript: October 17, 2011
Revised Manuscript: December 2, 2011
Manuscript Accepted: December 3, 2011
Published: December 21, 2011

Christopher Sorrentino, John R. E. Toland, and Christopher P. Search, "Ultra-sensitive chip scale Sagnac gyroscope based on periodically modulated coupling of a coupled resonator optical waveguide," Opt. Express 20, 354-363 (2012)

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