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The effect of neutron irradiation on the properties of AlGaAs/GaAs laser diodesThe effects of neutron irradiation on several properties of both single and multiple stripe laser diodes have been examined. Prior to fast neutron irradiation, total light output as a function of laser current, threshold current, near-field pattern, far-field pattern, and laser output wavelength spectra were measured at room temperature. These measurements were then repeated at intermittent neutron fluence levels. It was observed that the threshold current increased with neutron fluence for all devices examined. In contrast, neutron irradiation had only an indirect effect on the remainder of the laser diode properties in that the higher currents required for operation after irradiation caused variations in these properties.
Document ID
19910066550
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Barnes, C. E.
(JPL Pasadena, CA, United States)
Heflinger, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Reel, R.
(Aerospace Corp. El Segundo, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Lasers And Masers
Meeting Information
Meeting: Fibre Optics ''90
Location: London
Country: United Kingdom
Start Date: April 24, 1990
End Date: April 26, 1990
Sponsors: Institute of Physics, SPIE, Institute of Measurement and Control
Accession Number
91A51173
Distribution Limits
Public
Copyright
Other

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