Grazing incidence beam expander

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Description

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 high power levels characteristic of FELs would have to travel perhaps hundreds of meters or more before expanding enough to allow reflection from cooled mirrors. A GIBE, on the other hand, would ... continued below

Physical Description

Pages: 11

Creation Information

Akkapeddi, P.R.; Glenn, P.; Fuschetto, A.; Appert, Q. & Viswanathan, V.K. January 1, 1985.

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Description

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 high power levels characteristic of FELs would have to travel perhaps hundreds of meters or more 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.

Physical Description

Pages: 11

Notes

NTIS, PC A02/MF A01; 1.

Source

  • Southwest conference on optics, Albuquerque, NM, USA, 4 Mar 1985

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  • Other: DE85010784
  • Report No.: LA-UR-85-1216
  • Report No.: CONF-850345-22
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5910825
  • Archival Resource Key: ark:/67531/metadc1098509

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1985

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

Description Last Updated

  • March 30, 2018, 12:26 p.m.

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Akkapeddi, P.R.; Glenn, P.; Fuschetto, A.; Appert, Q. & Viswanathan, V.K. Grazing incidence beam expander, article, January 1, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc1098509/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.