A LONGITUDINAL FEEDBACK FOR THE SUPER-ACO FREE-ELECTRON LASER STABILITY IN THE UV

被引：47

作者：

COUPRIE, ME

GARZELLA, D

HARA, T

CODARBOX, JH

BILLARDON, M

机构：

[1] ECOLE SUPER PHYS & CHIM IND VILLE PARIS,F-75231 PARIS 05,FRANCE

[2] UNIV PARIS 11,LURE,F-91405 ORSAY,FRANCE

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1995年 / 358卷 / 1-3期

关键词：

D O I：

10.1016/0168-9002(94)01576-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

To take complete benefit of the FEL's features, longitudinal feedback has been developed for operating the FEL at perfect tuning without jitter. The laser micropulse temporal position is detected and compared to a reference position corresponding to perfect tuning. The time difference is converted into a correcting voltage, which is applied to the RF frequency pilot to adjust the synchronism condition. When the feedback is established, the micropulse jitter is reduced, the intensity fluctuations on the ms scale are damped and wavelength drift is suppressed. It has thus significantly improved the FEL operation at perfect tuning, and provides a stable laser with all its parameters optimized for the users.

引用

收藏

页码：374 / 377

页数：4

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