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Environmental testing of a diode-laser-pumped Nd:YAG laser and a set of diode-laser-arraysResults of the environmental test of a compact, rigid and lightweight diode-laser-pumped Nd:YAG laser module are discussed. All optical elements are bonded onto the module using space applicable epoxy, and two 200 mW diode laser arrays for pump sources are used to achieve 126 mW of CW output with about 7 percent electrical-to-optical conversion efficiency. This laser assembly and a set of 20 semiconductor diode laser arrays were environmentally tested by being subjected to vibrational and thermal conditions similar to those experienced during launch of the Space Shuttle, and both performed well. Nevertheless, some damage to the laser front facet in diode lasers was observed. Significant degradation was observed only on lasers which performed poorly in the life test. Improvements in the reliability of the Nd:YAG laser are suggested.
Document ID
19900044888
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hemmati, H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lesh, J. R.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Lasers And Masers
Meeting Information
Meeting: Space Sensing, Communications, and Networking
Location: Los Angeles, CA
Country: United States
Start Date: January 16, 1989
End Date: January 18, 1989
Accession Number
90A31943
Distribution Limits
Public
Copyright
Other

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