Experimental characterization of FEL Polarization control with cross polarized undulators

  • E. Ferrari
  • , E. Allaria
  • , J. Buck
  • , G. De Ninno
  • , B. Diviacco
  • , D. Gauthier
  • , L. Giannessi
  • , Z. Huang
  • , M. Ilchen
  • , G. Lambert
  • , A. A. Lutman
  • , B. Mahieu
  • , G. Penco
  • , C. Spezzani
  • , J. Viefhaus

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Polarization control of the coherent radiation is becoming an important feature of recent and future short wavelength free electron laser facilities. While polarization tuning can be achieved taking advantage of specially designed undulators, a scheme based on two consecutive undulators emitting orthogonally polarized fields has also been proposed. Developed initially in synchrotron radiation sources, crossed polarized undulator schemes could benefit from the coherent emission that characterizes FELs. In this work we report the first detailed experimental characterization of the polarization properties of an FEL operated with crossed polarized undulators in the Soft-X-Rays. Aspects concerning the average degree of polarization and the shot to shot stability are investigated together with a comparison of the performance of various schemes to control and switch the polarization.

Original languageEnglish
Title of host publicationProceedings of the 36th International Free Electron Laser Conference, FEL 2014
PublisherJoint Accelerator Conferences Website (JACoW)
Pages644-648
Number of pages5
ISBN (Electronic)9783954501335
Publication statusPublished - 1 Jan 2014
Event36th International Free Electron Laser Conference, FEL 2014 - Basel, Switzerland
Duration: 25 Aug 201429 Aug 2014

Publication series

NameProceedings of the 36th International Free Electron Laser Conference, FEL 2014

Conference

Conference36th International Free Electron Laser Conference, FEL 2014
Country/TerritorySwitzerland
CityBasel
Period25/08/1429/08/14

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