2-COLOR OPERATION OF THE FREE-ELECTRON LASER USING A STEP-TAPERED UNDULATOR

Authors
JAROSZYNSKI DA PRAZERES R GLOTIN F ORTEGA JM
Citation
Da. Jaroszynski et al., 2-COLOR OPERATION OF THE FREE-ELECTRON LASER USING A STEP-TAPERED UNDULATOR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 358(1-3), 1995, pp. 224-227
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
358
Issue
1-3
Year of publication
1995
Pages
224 - 227
Database
ISI
SICI code
0168-9002(1995)358:1-3<224:2OOTFL>2.0.ZU;2-C
Abstract
Two-colour operation of the CLIO free electron laser (FEL) has been de monstrated experimentally. Using a step-tapered undulator which produc es two independently tunable resonances we have obtained two-colour FE L operation with a frequency difference over a range of +/- 20%. We sh ow that the range is currently limited by the influence of optical dis persion in the dielectric output coupler. We present first order autoc orrelation measurements that show 100% modulation due to beating of th e two colours over the range of the spectrum. We present power measure ments that show that ''optical klystron'' type of interference effects influence the small signal gain.