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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 18 — Sep. 1, 2008
  • pp: 13800–13808

Characterizing photonic crystal waveguides with an expanded k-space evanescent coupling technique

Michael W. Lee, Christian Grillet, Christopher G. Poulton, Christelle Monat, Cameron L. C. Smith, Eric Mägi, Darren Freeman, Steve Madden, Barry Luther-Davies, and Benjamin J. Eggleton  »View Author Affiliations

Optics Express, Vol. 16, Issue 18, pp. 13800-13808 (2008)

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We demonstrate a direct, single measurement technique for characterizing the dispersion of a photonic crystal waveguide (PCWG) using a tapered fiber evanescent coupling method. A highly curved fiber taper is used to probe the Fabry-Pérot spectrum of a closed PCWG over a broad k-space range, and from this measurement the dispersive properties of the waveguide can be found. Waveguide propagation losses can also be estimated from measurements of closed waveguides with different lengths. The validity of this method is demonstrated by comparing the results obtained on a ‘W1’ PCWG in chalcogenide glass with numerical simulation.

© 2008 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(130.2790) Integrated optics : Guided waves
(130.5296) Integrated optics : Photonic crystal waveguides

ToC Category:
Photonic Crystals

Original Manuscript: July 21, 2008
Revised Manuscript: August 19, 2008
Manuscript Accepted: August 19, 2008
Published: August 21, 2008

Michael W. Lee, Christian Grillet, Christopher G. Poulton, Christelle Monat, Cameron L. Smith, Eric Mägi, Darren Freeman, Steve Madden, Barry Luther-Davies, and Benjamin J. Eggleton, "Characterizing photonic crystal waveguides with an expanded k-space evanescent coupling technique," Opt. Express 16, 13800-13808 (2008)

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