First Lasing of the Regenerative Amplifier FEL

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The Regenerative Amplifier Free-Electron Laser (RAFEL) is a high-gain RF-linac FEL capable of producing high optical power from a compact design. The combination of a high-gain and small optical feedback enables the FEL to reach saturation and produce a high optical power and high extraction efficiency without risk of optical damage to the mirrors. This paper summarizes the first lasing of the Regenerative Amplifier FEL and describes recent experimental results. The highest optical energy achieved thus far at 16.3 {micro}m is 1.7 J over an 9-{micro}s macropulse, corresponding to an average power during the macropulse of 190 kW. They deduce ... continued below

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Nguyen, D.C.; Sheffield, R.L.; Fortang, C.M.; Goldstein, J.C.; Kinross-Wright, J.M. & Ebrahim, N.A. August 17, 1998.

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The Regenerative Amplifier Free-Electron Laser (RAFEL) is a high-gain RF-linac FEL capable of producing high optical power from a compact design. The combination of a high-gain and small optical feedback enables the FEL to reach saturation and produce a high optical power and high extraction efficiency without risk of optical damage to the mirrors. This paper summarizes the first lasing of the Regenerative Amplifier FEL and describes recent experimental results. The highest optical energy achieved thus far at 16.3 {micro}m is 1.7 J over an 9-{micro}s macropulse, corresponding to an average power during the macropulse of 190 kW. They deduce an energy of 1.7 mJ in each 16 ps micropulse, corresponding to a peak power of 110 MW.

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Medium: P; Size: vp.

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INIS; OSTI as DE00759414

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  • Free Electron Laser '98 Conference, Williamsburg, VA (US), 08/17/1998--08/21/1998

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  • Report No.: LA-UR-98-4556
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 759414
  • Archival Resource Key: ark:/67531/metadc707190

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  • August 17, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 19, 2016, 2:58 p.m.

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Nguyen, D.C.; Sheffield, R.L.; Fortang, C.M.; Goldstein, J.C.; Kinross-Wright, J.M. & Ebrahim, N.A. First Lasing of the Regenerative Amplifier FEL, article, August 17, 1998; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc707190/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.