Efficient optical pulse stacker system

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864315

Seppala, Lynn G ^[1]; Haas, Roger A ^[1]

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1. Pleasanton, CA

Method and apparatus for spreading and angle-encoding each pulse of a multiplicity of small area, short pulses into several temporally staggered pulses by use of appropriate beam splitters, with the optical elements being arranged so that each staggered pulse is contiguous with one or two other such pulses, and the entire sequence of stacked pulses comprising a single, continuous long pulse. The single long pulse is expanded in area, and then doubly passed through a nonstorage laser amplifier such as KrF. After amplification, the physically separated, angle-encoded and temporally staggered pulses are recombined into a single pulse of short duration. This high intensity output beam is well collimated and may be propagated over long distance, or used for irradiating inertial confinement fusion targets.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4345212
• OSTI ID: 864315
• Country of Publication: United States
• Language: English

Related Subjects

efficient
optical
pulse
stacker
method
apparatus
spreading
angle-encoding
multiplicity
pulses
temporally
staggered
appropriate
beam
splitters
elements
arranged
contiguous
entire
sequence
stacked
comprising
single
continuous
expanded
doubly
passed
nonstorage
laser
amplifier
krf
amplification
physically
separated
angle-encoded
recombined
duration
intensity
output
collimated
propagated
distance
irradiating
inertial
confinement
fusion
targets
physically separated
optical pulse
confinement fusion
fusion targets
inertial confinement
optical element
optical elements
output beam
beam splitter
laser amplifier
single pulse
fusion target
beam splitters
pulse stacker
/359/372/