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Proper Criteria of Nonlinear Optical Crystals for Space Laser Systems and the Possible Causes for Space Laser FailuresNASA is striving to develop a scientific understanding of the universe and the Earth-Sun System and its response to natural or human-induced changes. Space lasers are vital tools for NASA's missions to advance our understanding of space research and improving our prediction capability for climate, weather, and natural hazards. Unfortunately, several past space missions that utilized lasers proved to be short-lived and unreliable. In this paper, we are reporting the results of our investigations on several nonlinear optical crystals, which are vital components in space lasers. Examples of these investigations are: The correlation of the phase diagrams of nonlinear crystals and its durability, the effect of radiating these crystals by high-energy beams of protons and gamma on their second harmonic efficiency, and measurements of the high-energy and low-energy thresholds for each crystal before and after irradiation. A set of proper criteria for these crystals will be presented. We will also discuss the possible causes of failures in a space laser and propose a solution to a contamination problem in all future space lasers.
Document ID
20050147491
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Abdeldayem, Hossin A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dowdye, Edward
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jamison, Tracee
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Canham, John
(Swales Aerospace Beltsville, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 6, 2005
Subject Category
Mechanical Engineering
Meeting Information
Meeting: SPIE Conference
Location: San Diego, CA
Country: United States
Start Date: July 31, 2005
End Date: August 4, 2005
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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