HIGHLY-SENSITIVE PASSIVE INTEGRATED OPTICAL SPIRAL-SHAPED WAVE-GUIDE REFRACTOMETER

Authors
VELDHUIS GJ LAMBECK PV
Citation
Gj. Veldhuis et Pv. Lambeck, HIGHLY-SENSITIVE PASSIVE INTEGRATED OPTICAL SPIRAL-SHAPED WAVE-GUIDE REFRACTOMETER, Applied physics letters, 71(20), 1997, pp. 2895-2897
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
71
Issue
20
Year of publication
1997
Pages
2895 - 2897
Database
ISI
SICI code
0003-6951(1997)71:20<2895:HPIOSW>2.0.ZU;2-L
Abstract
A passive integrated optical waveguide refractometer based on bendloss changes in a spiral-shaped channel waveguide is proposed and fabricat ed in Si3N4/SiO2 technology. The experimentally determined performance and the theoretical predictions, based on a simple model for so-calle d ''whispering gallery modes,'' agree very well. The minimum detectabl e refractive index change was measured to be Delta n=1.3x10(-5). (C) 1 997 American Institute of Physics.