An elastomeric grating coupler

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Kocabas, A. and Ay, F. and Dana, A. and Aydinli, A. (2006) An elastomeric grating coupler. Journal of Optics A - Pure and applied Optics, 8 (1). pp. 85-87. ISSN 1464-4258

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Abstract:We report on a novel nondestructive and reversible method for coupling free space light to planar optical waveguides. In this method, an elastomeric grating is used to produce an effective refractive index modulation on the surface of the optical waveguide. The external elastomeric grating binds to
the surface of the waveguide with van der Waals forces and makes conformal contact without any applied pressure. As a demonstration of the feasibility of the approach, we use it to measure the refractive index of a silicon oxynitride film. This technique is nondestructive, reversible, low cost
and can easily be applied to the characterization of optical materials for integrated optics.
Item Type:Article
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/66191
Official URL:http://dx.doi.org/10.1088/1464-4258/8/1/013
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