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An approach to improve the failure rate model of a solid state laser by utilizing the Physics of Failure Methodology.

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Date Issued:
2011
Abstract/Description:
The ability to predict the failure rate of any military laser is very critical. In-field laser usage does not support the troubleshooting and repairing of a complex electro optical system. The only published laser failure rate model was last updated by the Department of Defense in 1975. Consequently, the failure rate predicted is inaccurate due to model deficiencies. This dissertatiodatn has developed a laser failure rate model for diode pumped lasers with improved failure rate prediction accuracy. The model has surpassed the capabilities of the Department of Defense model by the inclusion of key performance attributes that are currently not taken into account. The scope of work completed was based on a tailored Physics of Failure methodology. The research approach implemented was: 1. Integration of Failure Mode and Effects Analysis to evaluate deployed laser failure. 2. Beam simulation for alignment tolerance analysis. 3. Thermal and vibration effects analysis on laser performance. 4. Analysis and development of a methodology to represent a resonator failure rate model. A secondary contribution of this research effort is supporting the update of the current laser failure rate model. The success of revising the current model relies on leveraging the work of other organizations in the area of failure rate modeling and reliability predictions.
Title: An approach to improve the failure rate model of a solid state laser by utilizing the Physics of Failure Methodology.
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Name(s): Thompson, Omar, Author
Kincaid, John, Committee Chair
Bass, Michael, Committee CoChair
Clarke, Thomas, Committee Member
Wiegand, Rudolf, Committee Member
Shumaker, Randall, Committee Member
Bass, Michael, Committee Member
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2011
Publisher: University of Central Florida
Language(s): English
Abstract/Description: The ability to predict the failure rate of any military laser is very critical. In-field laser usage does not support the troubleshooting and repairing of a complex electro optical system. The only published laser failure rate model was last updated by the Department of Defense in 1975. Consequently, the failure rate predicted is inaccurate due to model deficiencies. This dissertatiodatn has developed a laser failure rate model for diode pumped lasers with improved failure rate prediction accuracy. The model has surpassed the capabilities of the Department of Defense model by the inclusion of key performance attributes that are currently not taken into account. The scope of work completed was based on a tailored Physics of Failure methodology. The research approach implemented was: 1. Integration of Failure Mode and Effects Analysis to evaluate deployed laser failure. 2. Beam simulation for alignment tolerance analysis. 3. Thermal and vibration effects analysis on laser performance. 4. Analysis and development of a methodology to represent a resonator failure rate model. A secondary contribution of this research effort is supporting the update of the current laser failure rate model. The success of revising the current model relies on leveraging the work of other organizations in the area of failure rate modeling and reliability predictions.
Identifier: CFE0004587 (IID), ucf:49214 (fedora)
Note(s): 2011-12-01
Ph.D.
Sciences, Psychology
Doctoral
This record was generated from author submitted information.
Subject(s): Diode Pumped Lasers -- Failure Rate -- Reliability
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFE0004587
Restrictions on Access: campus 2015-12-15
Host Institution: UCF

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