Second stage Ti:Sapphire amplifier for Terawatt class system
Multi-Terawatt Ti:Sapphire lasers
Femtosecond Two-stage Amplifier System Wedge-XL
Operation wavelength: 800 ± 10 nm
Output pulse duration: < 70 fs
Output energy: 100 mJ
Pulse repetition rate: 10 Hz
Femtosecond Terawatt Ti:sapphire Laser System Teahupoo MPA-XL
Output pulse wavelength: 810 ± 10 nm
Pulse width after compressor: <40 fs
Recommended maximum pulse energy after air compressor: 60 mJ (1.5 TW at 40 fs)
Maximum pulse energy of amplified stretched pulses: 0.2 J
Pulse repetition rate: 10 Hz
Output spectral bandwidth: 30 nm
Output beam diameter: 15 mm
Output beam quality: M2<2
Contrast: >106 for ns time scale
Compressor efficiency: 65%
Output beam polarization: Horizontal
CORTES-E-1 Table –Top Terawatt repetitive rate
laser system
Peak Power > 1TW
Pulse duration < 50 fs
Output pulse energy ≥ 50 mJ
Repetition rate 10 Hz
Wavelength Around 800 nm (fixed)
Energy stability Better than 5%
Beam quality M² ≤ 1.6
ns prepulse contrast ratio ≥ 105 : 1
ps prepulse contrast ratio ≥ 10³ : 1 @ 1 ps
≥ 105 : 1 @ 5 ps
≥ 10 6 : 1 @ 10-20 ps
Polarization of the final output beam Linear, Ellipticity < 10-2
Table Top Ultra High Intensity Ti:Sapphire Laser
Cortes-E
Pulse Length: < 60 fs
Energy per pulse: 100 mJ
Repetition rate: 10 Hz
Contrast ratio: > 106:1
Stability: < 3 %
Tuning range: 790-810 nm fro 50 fs pulses
Gaussian beam: M2 < 1.1
Beam diameter: 4 mm after focusing
Cortes-800 40 Terawatt Laser
System
The new Cortes-800 amplification system provides terawatt peak
power in
a compact package. Seeded with our compact Trestles Ti:sapphire oscillator,
the Cortes-800 consists of three chirped pulse amplification (CPA)
stages that fit on a single optical table. Pulse energies of greater than 1.5
J are achieved before compression in a vacuum chamber. Active feedback
and pulse shaping allows the Cortes-800 to produce extremely high contrast
ratios, and sub 30 fs output pulses with peak powers greater than 40
terawatts. Fully integrated timing and control software make the Cortes-
800 a perfect tool for the study of high energy laser- matter interaction.
The initial stage of the system consists of the
TRESTLES-20 femtosecond oscillator
pumped with a 532 nm, 6 W DPSS
laser. Generated 20 fs pulses are
temporally stretched with Offner
triplet technology to 400 ps. To
pre-correct for spectral changes
incurred as pulses pass through
the system, the stretched pulses
pass through an acousto-optic
programmable dispersive filter.
The AOPDF compensates for gain
narrowing and wavelength shifting in
the amplification stages and for dispersion
due to propagation through system components.
Before insertion into the first amplification
stage, a PISMO Pockels cell pulse picker is used
to gate single pulses at a repetition rate of 10 Hz
from the oscillator pulse train. The stretched,
shaped and picked pulses are then amplified by
a WEDGE-10 multi-pass amplifier, providing
high contrast ratio.
After the initial amplification stage the pulses
pass through a spatial filter to increase the beam
diameter and improve the spatial quality of the
beam.
A second PISMO Pockels cell is
used to increase the temporal
contrast ratio and to
protect STAGE-1 from
back reflections. The
spatially expanded
pulses pass through
STAGE-2, a 5-pass
multi-pass amplifier.
Another spatial filter
is used to clean the
beam before the final
amplifying stage, STAGE-
3. The 4-pass power amplifier
increases the pulse energy to
1,500 mJ per pulse.
Pulse compression takes place within
a sealed vacuum chamber with a
dielectric grating compressor. Grating
position, and thus final pulse
duration, are adjusted with the help
of computer controlled motorized
stages. A deformable mirror (DM)
coupled with a Shack-Hartmann
wavefront sensor is used to correct
wavefront distortions, resulting in a
0.8 Strehl ratio.
Jaws Laser System Cr:Forsterite Multi-Terawatt Amplified Laser -
price estimate
1250nm, 200ps, 10Hz, 1 J before compression
1250nm, 100fs, 10Hz, 500mJ --- 50fs, 10Hz, 250mJ - after compression
Cortes-K Femtosecond Seed Laser for Petawatt KrF Excimer Laser