Research of amplified spontaneous emission and thermo-optic effects in a diode pumped 100J/10Hz multi-slab Nd:glass laser amplifier

2021 ◽  
Author(s):  
Xiaoqin Wang ◽  
Jiangfeng Wang ◽  
Jiangtao Guo ◽  
Xinghua Lu ◽  
Wei Fan ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Laser Amplifier ◽  
Diode Pumped ◽  
Nd:Glass Laser

scholarly journals The output of a laser amplifier with simultaneous amplified spontaneous emission and an injected seed

2009 ◽  
Vol 27 (3) ◽  
pp. 393-398 ◽  
Author(s):  
H. Huang ◽  
G.J. Tallents
Keyword(s):  
Spontaneous Emission ◽  
Extreme Ultraviolet ◽  
Amplified Spontaneous Emission ◽  
Gain Saturation ◽  
Free Electron Lasers ◽  
Laser Amplifier ◽  
One Dimensional ◽  
X Ray ◽  
Laser Amplifiers ◽  
Harmonic Radiation

AbstractThe minimum irradiance needed to overcome amplified spontaneous emission (ASE) of a seed beam injected into a laser amplifier is evaluated. The treatment is particularly applicable to extreme ultraviolet (EUV) and X-ray laser schemes to inject laser harmonic radiation as a seed into (1) plasma laser amplifiers and (2) free-electron lasers. Simple expressions and calculations are given for the minimum injected irradiance required for amplification of the injected seed beam to exceed ASE from the amplifier, including the effects of gain saturation, assuming one dimensional radiative transfer.

scholarly journals Full characterization of the amplified spontaneous emission from a diode-pumped high-power laser system

2014 ◽  
Vol 22 (9) ◽  
pp. 11228 ◽  
Author(s):  
S. Keppler ◽  
M. Hornung ◽  
R. Bödefeld ◽  
A. Sävert ◽  
H. Liebetrau ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
High Power ◽  
Laser System ◽  
Amplified Spontaneous Emission ◽  
High Power Laser ◽  
Power Laser ◽  
Full Characterization ◽  
Diode Pumped ◽  
High Power Laser System

Spectrally dispersed amplified spontaneous emission for improving irradiation uniformity into high power Nd:glass laser system

1993 ◽  
Vol 73 (5) ◽  
pp. 2122-2131 ◽  
Author(s):  
H. Nakano ◽  
K. Tsubakimoto ◽  
N. Miyanaga ◽  
M. Nakatsuka ◽  
T. Kanabe ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
High Power ◽  
Laser System ◽  
Amplified Spontaneous Emission ◽  
Nd:Glass Laser

scholarly journals LD-pumped gas-cooled multislab Nd:glass laser amplification to joule level

2018 ◽  
Vol 6 ◽  
Author(s):  
Wenfa Huang ◽  
Jiangfeng Wang ◽  
Xinghua Lu ◽  
Tingrui Huang ◽  
Jiangtao Guo ◽  
...  
Keyword(s):  
Pump Energy ◽  
High Energy ◽  
Wavefront Aberration ◽  
Laser Amplifier ◽  
Thermally Induced ◽  
Laser Amplification ◽  
Helium Gas ◽  
Gas Cooling ◽  
Diode Pumped ◽  
Nd:Glass Laser

We demonstrate a laser diode end-pumped helium gas-cooled multislab Nd:glass laser amplifier. The design and thermal management of the proposed laser amplifier are discussed. The thermally induced wavefront aberration of the slabs was also measured and compared with simulation results. A small-signal single-pass longitudinal gain of 1.8 was measured with a pump energy of 7.3 J. With an injected seed energy of 0.6 mJ, the output energy from the amplifier reached 0.5 J at 0.2 Hz and 0.43 J at 0.5 Hz in a multipass extraction geometry, thus demonstrating the feasibility of diode-pumped, high-energy lasers with direct gas cooling.

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