Title :
Influence of water sorption on acrylic polymer waveguide loss
Author :
Hida, Y. ; Imamura, S.
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
7/1/1994 12:00:00 AM
Abstract :
The influence of water sorption on acrylic polymer waveguides was studied by measuring the loss changes in the atmosphere at 13 to 98% RH. The absorption peak at 1.41 μm increased from 0.5 to 2 dB/cm due to water sorption. This peak resulted in a small loss change of 0.03 dB/cm at 1.3 μm, which was successfully measured using a 57 cm waveguide with a loss of around 0.1 dB/cm. Relationships between loss change and water sorption were also revealed by measuring the water content of the polymers.
Keywords :
integrated optics; optical losses; optical polymers; optical waveguides; refractive index; sorption; 1.3 mum; 1.41 mum; 57 cm; absorption peak; acrylic polymer waveguide loss; acrylic polymer waveguides; atmosphere; loss changes; small loss change; water content; water sorption; waveguide; Loss measurement; Optical attenuators; Optical filters; Optical losses; Optical polymers; Optical ring resonators; Optical waveguides; Refractive index; Resists; Waveguide transitions;
Journal_Title :
Photonics Technology Letters, IEEE
