Variable Ratio Beam Splitters For High Energy Glass Laser Systems

Stanley Refermat

doi:10.1117/12.956272

26 September 1978 Variable Ratio Beam Splitters For High Energy Glass Laser Systems

Stanley Refermat

Proceedings Volume 0140, Optical Coatings: Applications and Utilization II; (1978) https://doi.org/10.1117/12.956272
Event: 1978 Technical Symposium East, 1978, Washington, D.C., United States

Abstract

A multijoule Nd:glass laser system for laser fusion research is currently under construction at the University of Rochester's Laboratory for Laser Energetics. The twenty-four beam system will consist of hundreds of optical elements. The design of optical components for use in lasers operating in the multikilojoule energy regime must include considerations neglected in more conventional applications. The relevant component design factors include resistance to damage caused by laser radiation, contribution to non-linear phenomena, retardance, beam break-up and loss of focusable energy. This paper describes variable ratio beam splitters that permit flexible balancing of beam line energy content. Several options are considered in light of the relevant design parameters. The result consists of plane plate, coated beamsplitters used in conjunction with half wave retardation plates in the presence of plane polarized light.

Citation Download Citation

Stanley Refermat "Variable Ratio Beam Splitters For High Energy Glass Laser Systems", Proc. SPIE 0140, Optical Coatings: Applications and Utilization II, (26 September 1978); https://doi.org/10.1117/12.956272

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