Radiation resistance of electro-optic polymer-based modulators

Mach-Zehnder interferometric electro-optic polymer modulators composed of highly nonlinear phenyltetraene bridge-type chromophores within an amorphous polycarbonate host matrix were investigated for their resistance to gamma rays and 25.6 MeV protons. No device failures were observed and the majorit...

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Bibliographic Details
Published in:Applied physics letters 2005-05, Vol.86 (20), p.201122-201122-3
Main Authors: Taylor, Edward W., Nichter, James E., Nash, Fazio D., Haas, Franz, Szep, Attila A., Michalak, Richard J., Flusche, Brian M., Cook, Paul R., McEwen, Tom A., McKeon, Brian F., Payson, Paul M., Brost, George A., Pirich, Andrew R., Castaneda, Carlos, Tsap, Boris, Fetterman, Harold R.
Format: Article
Language:English
Subjects:
AGING
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTRIC POTENTIAL
GAMMA RADIATION
IRRADIATION
MACH-ZEHNDER INTERFEROMETER
MEV RANGE 10-100
MODULATION
NONLINEAR OPTICS
POLYMERS
PROTONS
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Summary:Mach-Zehnder interferometric electro-optic polymer modulators composed of highly nonlinear phenyltetraene bridge-type chromophores within an amorphous polycarbonate host matrix were investigated for their resistance to gamma rays and 25.6 MeV protons. No device failures were observed and the majority of irradiated modulators exhibited decreases in half-wave voltage and optical insertion losses compared to nonirradiated control samples undergoing aging processes. Irradiated device responses were attributed to scission, cross-linking, and free volume processes. The data suggests that strongly poled devices are less likely to de-pole under the influence of ionizing radiation.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1927713