Title :
Temperature-independent narrowband optical filter at 1.3 μm wavelength by an athermal waveguide
Author :
Kokubun, Y. ; Yoneda, S. ; Tanaka, H.
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
fDate :
10/10/1996 12:00:00 AM
Abstract :
The authors report the realisation of a temperature independent narrowband optical filter at 1.3 μm wavelength. A ring resonator has been designed and fabricated using an athermal waveguide, in which the optical path length is independent of temperature. The temperature coefficient of the central wavelength was successfully reduced to 7×104 nm/K (7% of that of a conventional filter)
Keywords :
optical waveguide filters; 1.3 micron; athermal waveguide; optical path length; ring resonator; temperature coefficient; temperature-independent narrowband optical filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961295
