TEMPERATURE-INDEPENDENT NARROW-BAND OPTICAL FILTER AT 1.31 MU-M WAVELENGTH BY AN ATHERMAL WAVE-GUIDE

Authors
KOKUBUN Y YONEDA S TANAKA H
Citation
Y. Kokubun et al., TEMPERATURE-INDEPENDENT NARROW-BAND OPTICAL FILTER AT 1.31 MU-M WAVELENGTH BY AN ATHERMAL WAVE-GUIDE, Electronics Letters, 32(21), 1996, pp. 1998-2000
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
32
Issue
21
Year of publication
1996
Pages
1998 - 2000
Database
ISI
SICI code
0013-5194(1996)32:21<1998:TNOFA1>2.0.ZU;2-4
Abstract
The authors report the realisation of a temperature independent narrow band optical filter at 1.3 mu m wavelength. A ring resonator has been designed and fabricated using an athermal waveguide, in which the opti cal path length is independent of temperature. The temperature coeffic ient of the central wavelength was successfully reduced to 7 X 10(-4)n m/K (7% of that of a conventional filter).