MEASURING REFRACTIVE-INDEX PROFILES OF INTEGRATED LINBO3 WAVE-GUIDES

Authors
GROEBLI B GISIN B GISIN N ZBINDEN H
Citation
B. Groebli et al., MEASURING REFRACTIVE-INDEX PROFILES OF INTEGRATED LINBO3 WAVE-GUIDES, Optical engineering, 34(8), 1995, pp. 2309-2314
Citations number
12
Categorie Soggetti
Optics
Journal title
Optical engineering → ACNP
ISSN journal
00913286
Volume
34
Issue
8
Year of publication
1995
Pages
2309 - 2314
Database
ISI
SICI code
0091-3286(1995)34:8<2309:MRPOIL>2.0.ZU;2-P
Abstract
A nondestructive technique that provides near-field measurements as we ll as refractive index profiles and geometry of waveguides in LiNbO3 w ithin a few minutes is demonstrated. It is a modification of the refra cted-near-field (RNF) method well known for optical fiber characteriza tion. Spatial resolution below 1 mu m is achieved. The index resolutio n is about 2x10(-4), the reproducibility better than 7%. A new calibra tion method for RNF measurement is introduced.