THE EVOLUTION AND LIMITS OF SPECTRAL BANDWIDTH IN FREE-ELECTRON LASERS

被引:12
作者
KIM, KJ
机构
[1] Lawrence Berkeley Laboratory, Berkeley, CA 94720
关键词
D O I
10.1016/0168-9002(91)90908-9
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We study the bandwidth in free electron lasers (FELs) under different circumstances; for weakly saturated FELs in storage rings, the bandwidth is given by the formula derived in the supermode theory, while it is given by the Fourier transform of the electron pulse length in the strongly saturated FELs in linacs. The limiting bandwidth for the case of a dc beam is given by a Schawlow-Townes formula, but the approach to the limit is very slow.
引用
收藏
页码:458 / 462
页数:5
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