TIME-RESOLVED STUDY OF SIDE-BAND GENERATION AND TRANSITION TO CHAOS ON AN INFRARED FEL

Authors
LEEMANS WP CONDE ME GOVIL R VANDERGEER B DELOOS M SCHWETTMAN HA SMITH TI SWENT RL
Citation
Wp. Leemans et al., TIME-RESOLVED STUDY OF SIDE-BAND GENERATION AND TRANSITION TO CHAOS ON AN INFRARED FEL, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 358(1-3), 1995, pp. 208-211
Citations number
18
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
208 - 211
Database
ISI
SICI code
0168-9002(1995)358:1-3<208:TSOSGA>2.0.ZU;2-A
Abstract
We report observations on sideband generation and transition to chaos in an infrared free electron laser operating at a wavelength lambda(r) of 4 mu m with a low loss optical cavity. The temporal evolution of t he radiation spectrum through the complete macropulse has been measure d on a micropulse to micropulse basis [1]. Stable sidebands are observ ed for small cavity detuning with frequency offsets in good agreement with calculations. For even smaller cavity detuning, self-oscillations occur with the main laser wavelength varying by up to 2%. Using a wav elength stabilization system based on RF feedback [2], we have suppres sed these wavelength fluctuations without loss of peak power.