NEW OPTICAL CONFIGURATION FOR NONDESTRUCTIVE MEASUREMENTS OF REFRACTIVE-INDEX PROFILES OF LINBO3 WAVE-GUIDES

Authors
GISIN N PASSY R STAMP P HORI N NAGANO S
Citation
N. Gisin et al., NEW OPTICAL CONFIGURATION FOR NONDESTRUCTIVE MEASUREMENTS OF REFRACTIVE-INDEX PROFILES OF LINBO3 WAVE-GUIDES, Applied optics, 33(9), 1994, pp. 1726-1731
Citations number
19
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
33
Issue
9
Year of publication
1994
Pages
1726 - 1731
Database
ISI
SICI code
0003-6935(1994)33:9<1726:NOCFNM>2.0.ZU;2-Y
Abstract
A direct and nondestructive measurement technique for the determinatio n of the refractive index profiles of one- and two-dimensional LiNbO3 waveguides is presented for the first time to our knowledge. The techn ique generalizes the refracted near-field method, which is well known for optical fiber characterization. The spatial resolution and accurac y are 0.1 and 0.4 mum, respectively. The refractive-index calibration is done by an analysis of the near-field light power distribution, and its resolution is approximately 2 x 10(-4). The proposed experimental setup permits sample installation and data acquisition in a few minut es.