Title: Measurement of the refractive-index profile of planar waveguides by the use of a double Lloyd's interferometer
Abstract: We present a nondestructive experimental method to measure monotonically varying refractive-index profiles of planar waveguides. The technique is a modification of the Lloyd's mirage setup proposed by Allman et al. [Appl. Opt. 33, 1806 (1994)] in order to have a reference phase distribution for the interference pattern. The theoretical calculations have been implemented to account for multiple reflections inside the sample. An application of the method to ion-exchanged glass waveguides is reported.
Publication Year: 1996
Publication Date: 1996-11-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 13
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