By Topic

Optical cavities for visible free-electron laser experiments

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

9 Author(s)
D. Shemwell ; Spectra Technology, Inc., Bellevue, WA, USA ; K. Robinson ; R. Gellert ; D. Quimby
more authors

The current Boeing/Spectra Technology visible FEL oscillator experiment requires an optical cavity of unusual size. Due to the long narrow gain medium provided by the wiggler and electron beam, a cavity of near concentric geometry is used. The sensitivity of such near concentric FEL cavities to misalignment increases with increasing size and decreasing wavelength. As a result, an actively stabilized set of cavity mirrors is required. In addition, the micropulse temporal structure of an RF linac-driven FEL requires that the absolute length of the cavity be maintained to ensure that the light within the cavity overlaps individual micropulses. This paper describes the 55.4 m cavity with its associated stabilization and control system being used in these experiments.

Published in:

IEEE Journal of Quantum Electronics  (Volume:23 ,  Issue: 9 )