Title :
Long-term radiation effects on gallium arsenide directional coupler optical waveguides
Author :
McWright, G. ; Lowry, M. ; Roeske, F. ; Takeuchi, E.
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore, CA, USA
fDate :
2/1/1988 12:00:00 AM
Abstract :
The effects of 1.17-MeV and 1.33-MeV gamma rays on the propagation characteristics of a gallium arsenide directional coupler optical waveguide is reported. Under doses of 4100-190000 rad (GaAs), no measurable change in either coupling characteristics or transmission loss was found. However, it is uncertain whether the radiation-induced loss component in the optical waveguides is less than 3 dB. A suggestion for eliminating this optical-alignment-induced experimental uncertainty is given.
Keywords :
III-V semiconductors; directional couplers; gallium arsenide; gamma-ray effects; light transmission; optical couplers; optical losses; optical waveguides; 1.17 MeV; 1.33 MeV; 4100 to 190000 rad; GaAs directional coupler optical waveguide; coupling characteristics; long term radiation effects; propagation characteristics; transmission loss; Couplings; Directional couplers; Gallium arsenide; Gamma ray effects; Loss measurement; Optical losses; Optical propagation; Optical waveguides; Propagation losses; Radiation effects;
Journal_Title :
Nuclear Science, IEEE Transactions on
