Ignition feedback regenerative free electron laser (FEL) amplifier

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873973

Kim, Kwang-Je ^[1]; Zholents, Alexander ^[2]; Zolotorev, Max ^[3]

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1. Burr Ridge, IL
2. Walnut Creek, CA
3. Oakland, CA

An ignition feedback regenerative amplifier consists of an injector, a linear accelerator with energy recovery, and a high-gain free electron laser amplifier. A fraction of the free electron laser output is coupled to the input to operate the free electron laser in the regenerative mode. A mode filter in this loop prevents run away instability. Another fraction of the output, after suitable frequency up conversion, is used to drive the photocathode. An external laser is provided to start up both the amplifier and the injector, thus igniting the system.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: Bennett Optical Research, Inc. (Ridgecrest, CA)
• Patent Number(s): US 6285690
• OSTI ID: 873973
• Country of Publication: United States
• Language: English

Related Subjects

ignition
feedback
regenerative
free
electron
laser
amplifier
consists
injector
linear
accelerator
energy
recovery
high-gain
fraction
output
coupled
input
operate
mode
filter
loop
prevents
run
instability
suitable
frequency
conversion
drive
photocathode
external
provided
start
igniting
laser output
electron laser
laser amplifier
free electron
linear accelerator
energy recovery
regenerative amplifier
ignition feedback
feedback regenerative
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