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Proceedings Paper

Fracture Mechanisms and Strengthening of Slab Lasers
Author(s): John E. Marion
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Paper Abstract

The fracture mechanisms of slab lasers are examined and the critical defects, induced during optical fabrication, are identified. A rationale for determining an appropriate operating stress for the slab laser is outlined, based on Weibull statistics, and this method is experimentally assessed in full-sized slab fracture tests. Techniques for achieving strong slabs are then examined. We determine that strengthening by subsurface damage minimization has the highest potential for strengthening, but that slab durability must also be enhanced in order for the slab to remain strong in practice. Good chemical durability is achieved by the use of water-proof overcoats. Good mechanical durability is achieved by the use of compressive surface layers. The compressive surface layers prevent the deterioration in slab strength from physical damage to the slab surface.

Paper Details

Date Published: 6 April 1987
PDF: 11 pages
Proc. SPIE 0736, New Slab and Solid-State Laser Technologies and Applications, (6 April 1987); doi: 10.1117/12.938059
Show Author Affiliations
John E. Marion, University of California (United States)

Published in SPIE Proceedings Vol. 0736:
New Slab and Solid-State Laser Technologies and Applications
John M. Eggleston III; Steven Guch Jr., Editor(s)

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