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| TUCAU04 |
A Versatile High Gain Storage Ring FEL Powered by a Distributed Optical Klystron
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- J. Li, S. F. Mikhailov, V. Popov, Y. K. Wu
FEL/Duke University, Durham, North Carolina
- N. Vinokurov
BINP SB RAS, Novosibirsk
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In this work, we report the recent research results of a distributed optical klystron based storage ring FEL at Duke University, the DOK-1 FEL. The DOK-1 FEL is a hybrid system, comprised of four wigglers: two horizontal and two helical. This new FEL has demonstrated the highest FEL gain among storage ring based FEL oscillators using the distributed optical klystron configuration. The enhanced FEL gain of the DOK-1 FEL opens the door for storage ring based FELs to operate in the VUV region toward 150 nm. We have also realized controlled polarization switches of the FEL beam by a non-optical means through the manipulation of a buncher magnet. The DOK-1 FEL is a promising light source capable of rapid polarization switch in UV and VUV. The versatility of the DOK-1 FEL extends to many areas, including the ability of being operated as a multi-color light source for generation of coherent harmonic radiation.
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