FEL Oscillator Principles

Kwang-Je Kim, Lindberg Ryan, Zhirong Huang

Abstract


In this lecture we discuss the principles of an FEL oscillator, in which a radiation pulse is trapped in an optical cavity but receives repeated amplification as the pulse meets an electron bunch as it come to the entrance of a low-gain FEL. We provide a qualitative picture of how the power and the longitudinal and transverse modes of the pulse develop.

Keywords


FEL oscillator; basic principles.

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DOI: http://dx.doi.org/10.23730/CYRSP-2018-001.493

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