Naval Postgraduate School
A study of the stability of a high-power free electron laser utilizing a short Rayleigh length
Blau_A study_of_the_stability.pdf (126.9Kb)Date
2003Metadata
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In order to avoid mirror damage on a high-power free electron laser (FEL), the design can utilize a short Rayleigh
length optical cavity in combination with a short magnetic undulator. The short Rayleigh length increases the mode
area and reduces the intensity at the mirrors, and also alters the basic FEL interaction and the stability of the laser itself.
In particular, mirror misalignment may significantly affect the behavior of the cavity modes. We present simulations
showing the effect of mirror tilt on the performance of 100kW and 1MW FEL designs with short Rayleigh lengths.
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