Title :
Temperature-independent optical filter at 1.55 μm wavelength using a silica-based athermal waveguide
Author :
Kokubun, Y. ; Yoneda, S. ; Matsuura, S.
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
fDate :
2/19/1998 12:00:00 AM
Abstract :
The authors have realised a temperature-independent optical filter at a 1.55 μm wavelength, using a silica-based athermal waveguide in which optical path length is independent of temperature. The temperature coefficient of the central wavelength was successfully decreased to <4×10-4 nm/K, which corresponds to 3% of that of conventional silica-based waveguide filters
Keywords :
optical waveguide filters; 1.55 micron; SiO2; optical path length; silica-based athermal waveguide; temperature coefficient; temperature-independent optical filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980245
