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Proceedings Paper

Grazing Incidence Beam Expander
Author(s): Prasad R. Akkapeddi; Paul Glenn; Anthony Fuschetto; Quentin Appert; V. K. Viswanathan
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Paper Abstract

A Grazing Incidence Beam Expander (GIBE) telescope is being designed and fabricated to be used as an equivalent end mirror in a long laser resonator cavity. The design requirements for this GIBE flow down from a generic Free Electron Laser (FEL) resonator. The nature of the FEL gain volume (a thin, pencil-like, on-axis region) dictates that the output beam be very small. Such a thin beam with the power levels characteristic of FELs would have to travel many meters before expanding enough to allow reflection from cooled mirrors. A GIBE, on the other hand, would allow placing these optics closer to the gain region and thus reduces the cavity lengths substantially. Results are presented relating to optical and mechanical design, alignment sensitivity analysis, radius of curvature analysis, laser cavity stability analysis of a linear stable concentric laser cavity with a GIBE. Fabrication details of the GIBE are also given.

Paper Details

Date Published: 20 November 1985
PDF: 10 pages
Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); doi: 10.1117/12.976097
Show Author Affiliations
Prasad R. Akkapeddi, Perkin-Elmer Corporation (United States)
Paul Glenn, Perkin-Elmer Corporation (United States)
Anthony Fuschetto, Perkin-Elmer Corporation (United States)
Quentin Appert, Los Alamos National Laboratory (United States)
V. K. Viswanathan, Los Alamos National Laboratory (United States)

Published in SPIE Proceedings Vol. 0540:
Southwest Conf on Optics '85
Susanne C. Stotlar, Editor(s)

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