Long-pulse-width narrow-bandwidth solid state laser
- Livermore, CA
A long pulse laser system emits 500-1000 ns quasi-rectangular pulses at 527 nm with near diffraction-limited divergence and near transform-limited bandwidth. The system consists of one or more flashlamp-pumped Nd:glass zig-zag amplifiers, a very low threshold stimulated-Brillouin-scattering (SBS) phase conjugator system, and a free-running single frequency Nd:YLF master oscillator. Completely passive polarization switching provides eight amplifier gain passes. Multiple frequency output can be generated by using SBS cells having different pressures of a gaseous SBS medium or different SBS materials. This long pulse, low divergence, narrow-bandwidth, multi-frequency output laser system is ideally suited for use as an illuminator for long range speckle imaging applications. Because of its high average power and high beam quality, this system has application in any process which would benefit from a long pulse format, including material processing and medical applications.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5689363
- OSTI ID:
- 871239
- Country of Publication:
- United States
- Language:
- English
Design and operation of a 150 W near diffraction-limited laser amplifier with SBS wavefront correction
|
journal | January 1995 |
Pulse lengthening by intracavity stimulated Brillouin scattering in a Q-switched, phase-conjugated Nd:YAG laser oscillator
|
journal | January 1993 |
L'obésité de l'enfant013
|
journal | June 1990 |
Phase Conjugation in a high Power Regenerative Laser Amplifier System
|
journal | January 1993 |
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Related Subjects
500-1000
527
amplifier
amplifiers
application
applications
average
average power
bandwidth
beam
beam quality
benefit
cells
completely
completely passive
conjugator
consists
diffraction-limited
divergence
eight
emits
flashlamp-pumped
format
free-running
frequency
frequency output
gaseous
generated
glass
ideally
ideally suited
illuminator
imaging
imaging applications
including
laser
limited bandwidth
long-pulse-width
master
master oscillator
material
material processing
materials
medical
medical applications
medium
multi-frequency
multiple
multiple frequency
narrow-bandwidth
near
near diffraction
nm
oscillator
output
output laser
passes
passive
phase
phase conjugator
polarization
power
pressures
process
processing
provides
pulse
pulse format
pulse laser
pulses
quality
quasi-rectangular
range
sbs
single
single frequency
solid
speckle
speckle imaging
stimulated-brillouin-scattering
suited
switching
threshold
transform-limited
ylf
zig-zag