scholarly journals High-power, Joule-class, temporally shaped multi-pass ring laser amplifier with two Nd:glass laser heads

2019 ◽  
Vol 7 ◽  
Author(s):  
Jiangtao Guo ◽  
Jiangfeng Wang ◽  
Hui Wei ◽  
Wenfa Huang ◽  
Tingrui Huang ◽  
...  
Keyword(s):  
High Power ◽  
Ring Laser ◽  
Laser System ◽  
High Energy ◽  
Fiber Structure ◽  
Laser Amplifier ◽  
Regenerative Amplifier ◽  
Thermally Induced ◽  
Diode Pumped ◽  
Nd:Glass Laser

A high-power, Joule-class, nanosecond temporally shaped multi-pass ring laser amplifier system with two neodymium-doped phosphate glass (Nd:glass) laser heads is demonstrated. The laser amplifier system consists of three parts: an all-fiber structure seeder, a diode-pumped Nd:glass regenerative amplifier and a multi-pass ring amplifier, where the thermally induced depolarization of two laser heads is studied experimentally and theoretically. Following the injection of a square pulse with the pulse energy of 0.9 mJ and pulse width of 6 ns, a 0.969-J high-energy laser pulse at 1 Hz was generated, which had the ability to change the waveform arbitrarily, based on the all-fiber structure front end. The experimental results show that the proposed laser system is promising to be adopted in the preamplifier of high-power laser facilities.

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.

scholarly journals The Multidisk Diode-Pumped High Power Yb:YAG Laser Amplifier of High-Intensity Laser System with 1 kHz Repetition Rate

2018 ◽  
Vol 999 ◽  
pp. 012008 ◽  
Author(s):  
G V Kuptsov ◽  
V V Petrov ◽  
V A Petrov ◽  
A V Laptev ◽  
A V Kirpichnikov ◽  
...  
Keyword(s):  
High Power ◽  
Repetition Rate ◽  
High Intensity ◽  
Laser System ◽  
Laser Amplifier ◽  
High Intensity Laser ◽  
Diode Pumped ◽  
Intensity Laser

Preliminary results on the development of a nanosecond high-energy oscillator: regenerative-amplifier excimer laser system

1998 ◽  
Author(s):  
Olivier P. Uteza ◽  
Philippe C. Delaporte ◽  
Bernard L. Fontaine ◽  
Marc L. Sentis ◽  
Stephane Branly ◽  
...  
Keyword(s):  
Excimer Laser ◽  
Laser System ◽  
High Energy ◽  
Regenerative Amplifier ◽  
Preliminary Results

High-energy broadband Nd: Glass regenerative amplifier with coated birefringent filter for the high-power laser facilities

2021 ◽  
pp. 127874
Author(s):  
Jiangtao Guo ◽  
Jiangfeng Wang ◽  
Xiaoqin Wang ◽  
xiaochao Wang ◽  
Wei Fan ◽  
...  
Keyword(s):  
High Power ◽  
High Energy ◽  
High Power Laser ◽  
Power Laser ◽  
Regenerative Amplifier ◽  
Birefringent Filter

Demonstration of a diode pumped Nd,Y co-doped SrF 2 crystal based, high energy chirped pulse amplification laser system

2017 ◽  
Vol 382 ◽  
pp. 201-204 ◽  
Author(s):  
Junchi Chen ◽  
Yujie Peng ◽  
Zongxin Zhang ◽  
Hongpeng Su ◽  
Yuxin Leng ◽  
...  
Keyword(s):  
Laser System ◽  
High Energy ◽  
Chirped Pulse ◽  
Pulse Amplification ◽  
Chirped Pulse Amplification ◽  
Diode Pumped ◽  
Co Doped

Retrofit of a High Power Nd:Glass Laser System with Liquid Crystal Polarizers

2008 ◽  
pp. 15-15-8 ◽  
Author(s):  
SD Jacobs ◽  
KA Cerqua ◽  
TJ Kessler ◽  
W Seka ◽  
R Bahr
Keyword(s):  
Liquid Crystal ◽  
High Power ◽  
Laser System ◽  
Nd:Glass Laser

scholarly journals A Yb:KGW dual-crystal regenerative amplifier

2020 ◽  
Vol 8 ◽  
Author(s):  
Huijun He ◽  
Jun Yu ◽  
Wentao Zhu ◽  
Xiaoyang Guo ◽  
Cangtao Zhou ◽  
...  
Keyword(s):  
Laser System ◽  
Regenerative Amplifier ◽  
Chirped Pulse ◽  
Pulse Amplification ◽  
Front End ◽  
Chirped Pulse Amplification ◽  
Gain Narrowing ◽  
Diode Pumped ◽  
Cavity Design ◽  
Output Laser

Abstract This study develops a Yb:KGW dual-crystal based regenerative amplifier. The thermal lensing and gain-narrowing effects are compensated by the dual-crystal configuration. Sub-nanojoule pulses are amplified to 1.5 mJ with 9 nm spectral bandwidth and 1 kHz repetition rate using chirped pulse amplification technology. Consequently, 1.2 mJ pulses with a pulse duration of 227 fs are obtained after compression. Thanks to the cavity design, the output laser was a near diffraction limited beam with M2 around 1.1. The amplifier has the potential to boost energy above 2 mJ after compression and act as a front end for a future kilohertz terawatt-class diode-pumped Yb:KGW laser system.

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