Eur. Phys. J. Appl. Phys.
Volume 29, Number 3, March 2005
|Page(s)||223 - 230|
|Section||Laser, Optics, Optoelectronics and Nanophotonics|
|Published online||21 December 2004|
Measurement and calculation of the `Electron efficiency' on the `CLIO' Free-Electron Laser
LURE, Bât. 209D, BP 34, 91898 Orsay Cedex, France
Corresponding author: firstname.lastname@example.org
Accepted: 2 September 2004
Published online: 21 December 2004
This paper describe the recent measurements of `Electron efficiency' which has been done with the `CLIO' Free-electron laser (FEL). The `Electron efficiency' is the relative energy loss of the electron beam in the undulator during the FEL interaction. It gives an absolute measurement of the optical power produced by the FEL, which is then compared to the direct measurement using a power meter at the exit of the FEL. A analytical expression of the `Electron efficiency' is given here, and it is compared to the measurements.
PACS: 41.60.Cr – Free-electron lasers / 42.60.Lh – Efficiency, stability, gain, and other operational parameters / 42.72.Ai – Infrared sources / 07.57.Hm – Infrared, submillimeter wave, microwave, and radiowave sources
© EDP Sciences, 2005
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