Laser beam pulse formatting method

Patent · Fri Dec 31 23:00:00 EST 1993

OSTI ID:869442

Daly, Thomas P ^[1]; Moses, Edward I ^[1]; Patterson, Ralph W ^[1]; Sawicki, Richard H ^[2]

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1. Livermore, CA
2. Danville, CA

A method for formatting a laser beam pulse (20) using one or more delay loops (10). The delay loops (10) have a partially reflective beam splitter (12) and a plurality of highly reflective mirrors (14) arranged such that the laser beam pulse (20) enters into the delay loop (10) through the beam splitter (12) and circulates therein along a delay loop length (24) defined by the mirrors (14). As the laser beam pulse (20) circulates within the delay loop (10) a portion thereof is emitted upon each completed circuit when the laser beam pulse (20) strikes the beam splitter (12). The laser beam pulse (20) is thereby formatted into a plurality of sub-pulses (50, 52, 54 and 56). The delay loops (10) are used in combination to produce complex waveforms by combining the sub-pulses (50, 52, 54 and 56) using additive waveform synthesis.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48; AC05-84OR21400
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5337333
• OSTI ID: 869442
• Country of Publication: United States
• Language: English

Related Subjects

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10
12
14
20
24
50
52
54
56
additive
arranged
beam
beam pulse
beam splitter
circuit
circulates
combination
combining
completed
complex
defined
delay
delay loop
delay loops
emitted
enters
formatted
formatting
highly
highly reflective
laser
laser beam
length
loop
loops
method
mirrors
partially
plurality
portion
produce
pulse
pulse format
reflective
reflective mirror
reflective mirrors
splitter
strikes
sub-pulses
synthesis
therein
waveform
waveforms