Influence of finite absorption in transmission optics on the propagation of high average-power pulsed CO2 laser beams

1996 ◽  
Author(s):  
Stephanus P. van Heerden ◽  
Wouter Klopper ◽  
Francois J. Prinsloo ◽  
Andrew Forbes
Keyword(s):  
Average Power ◽  
Laser Beams ◽  
High Average Power

Filled-aperture coherent summation technique for multiple high average power laser beams

2014 ◽  
Author(s):  
G. Khosrovian ◽  
S. Taniguchi ◽  
M. Fujita ◽  
Y. Izawa ◽  
K. Tsubakimoto ◽  
...  
Keyword(s):  
Average Power ◽  
Laser Beams ◽  
High Average Power ◽  
Power Laser

scholarly journals Dual-scale turbulence in filamenting laser beams at high average power

2016 ◽  
Vol 94 (4) ◽  
Author(s):  
Elise Schubert ◽  
Lorena de la Cruz ◽  
Denis Mongin ◽  
Sandro Klingebiel ◽  
Marcel Schultze ◽  
...  
Keyword(s):  
Average Power ◽  
Laser Beams ◽  
High Average Power ◽  
Scale Turbulence ◽  
Dual Scale

SBS-PHASE CONJUGATION FOR THERMAL LENS COMPENSATION IN 100 W AVERAGE POWER SOLID-STATE LASERS

1994 ◽  
Vol 03 (03) ◽  
pp. 339-345 ◽  
Author(s):  
H.J. EICHLER ◽  
A. HAASE ◽  
R. MENZEL
Keyword(s):  
Brillouin Scattering ◽  
Beam Quality ◽  
Phase Conjugation ◽  
Average Power ◽  
Laser Beams ◽  
Solid State Lasers ◽  
High Average Power ◽  
Laser Amplifiers ◽  
Laser Crystals ◽  
Stimulated Brillouin

The thermal lensing effect in high-average power Nd:YAG-laser amplifiers is compensated by stimulated Brillouin scattering in CS 2. Nearly diffraction limited laser beams with average powers above 100 Watts were obtained. The system emitted bursts of 10 to 30 pulses with 40 ns width. The bursts have a repetition rate of 100 Hz and a duration of 100 µs. The beam quality degrades by depolarization effects at the highest pump and output powers. This degradation is avoided using polarization preserving Nd:YALO-laser crystals.

Coherent combining of high average power nanosecond pulse laser beams

2016 ◽  
Author(s):  
G. Khosrovian ◽  
T. Kitamura ◽  
M. Fujita ◽  
Y. Izawa ◽  
K. Tsubakimoto ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Average Power ◽  
Nanosecond Pulse ◽  
Laser Beams ◽  
High Average Power ◽  
Nanosecond Pulse Laser ◽  
Coherent Combining

A New Type S-band High-average-power Broadband Klystron

2011 ◽  
Vol 33 (7) ◽  
pp. 1727-1732 ◽  
Author(s):  
Zhao-chuan Zhang ◽  
Bao-li Shen ◽  
Xiao-juan Yu ◽  
Feng Zhang ◽  
Yun-ping Huang
Keyword(s):  
Average Power ◽  
High Average Power ◽  
New Type

scholarly journals An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
Peak Power ◽  
Figure Of Merit ◽  
Current System ◽  
Glass Fibers ◽  
Average Power ◽  
High Gain ◽  
Short Length ◽  
High Average Power

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.

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