Long-term radiation effects on gallium arsenide directional coupler optical waveguides

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 un...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 1988-02, Vol.35 (1), p.951-953
Main Authors: McWright, G., Lowry, M., Roeske, F., Takeuchi, E.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
couplers
Couplings
Directional couplers
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Gallium arsenide
gamma radiation
Gamma ray effects
Integrated optics. Optical fibers and wave guides
Loss measurement
Optical and optoelectronic circuits
Optical losses
Optical propagation
optical systems
Optical waveguides
Propagation losses
radiation
Radiation effects
waveguides
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Summary: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.< >
ISSN:0018-9499
1558-1578
DOI:10.1109/23.12865