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Probing the dispersive and spatial properties of photonic crystal waveguides via highly efficient coupling from fiber tapers

Barclay, P. E. and Srinivasan, K. and Borselli, M. and Painter, O. (2004) Probing the dispersive and spatial properties of photonic crystal waveguides via highly efficient coupling from fiber tapers. Applied Physics Letters, 85 (1). pp. 4-6. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:BARapl04

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Abstract

The demonstration of an optical fiber based probe for efficiently exciting the waveguide modes of high-index contrast planar photonic crystal (PC) slabs is presented. Fiber taper waveguides formed from standard silica single-mode optical fibers are used to evanescently couple light into the guided modes of a patterned silicon membrane. A coupling efficiency of ~95% is obtained between the fiber taper and a PC waveguide mode suitably designed for integration with a previously studied ultrasmall mode volume high-Q PC resonant cavity [Srinivasan et al., Appl. Phys. Lett. 83, 1915 (2003)]. The micron-scale lateral extent and dispersion of the fiber taper is used as a near-field spatial and spectral probe to study the profile and dispersion of PC waveguide modes.


Item Type:Article
Additional Information:©2004 American Institute of Physics (Received 28 October 2003; accepted 10 May 2004) One of the authors (K.S.) would like to thank the Hertz foundation and M.B. the Moore Foundation for financial support.
Subject Keywords:photonic crystals; optical planar waveguides; optical fibre dispersion; optical fibre couplers
Record Number:CaltechAUTHORS:BARapl04
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BARapl04
Alternative URL:http://dx.doi.org/0.1063/1.1767954
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1299
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:09 Jan 2006
Last Modified:26 Dec 2012 08:43

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