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Title: Sustained Saturation in a Free-Electron Laser Oscillator at Perfect Synchronism of an Optical Cavity

Journal Article · · Physical Review Letters

The first observation of sustained saturation in a free-electron laser (FEL) oscillator at perfect synchronism of an optical cavity is presented. A simultaneous measurement of FEL power and absolute detuning length of the optical cavity ({delta}L ) has clearly shown that the FEL efficiency becomes maximum at {delta}L=0.0{+-}1 {mu} m , although it has been considered that only a transient state exists at {delta}L=0 due to the well-known laser lethargy effect. The observed efficiency detuning curve is well reproduced by our numerical simulation including a small shot-noise effect.

Sponsoring Organization:
(US)
OSTI ID:
40204674
Journal Information:
Physical Review Letters, Vol. 86, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.86.5707; Othernumber: PRLTAO000086000025005707000001; 010126PRL; PBD: 18 Jun 2001; ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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