scholarly journals Advanced LIGO Laser Systems for O3 and Future Observation Runs

Galaxies ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 84
Author(s):  
Nina Bode ◽  
Joseph Briggs ◽  
Xu Chen ◽  
Maik Frede ◽  
Peter Fritschel ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
Low Noise ◽  
High Power Laser ◽  
Power Laser ◽  
The Third ◽  
Laser Systems ◽  
Laser Sources

The advanced LIGO gravitational wave detectors need high power laser sources with excellent beam quality and low-noise behavior. We present a pre-stabilized laser system with 70 W of output power that was used in the third observing run of the advanced LIGO detectors. Furthermore, the prototype of a 140 W pre-stabilized laser system for future use in the LIGO observatories is described and characterized.

Research on Nonlinear Degeneration and Compensation of Beam Quality in High Power Laser System

2014 ◽  
Vol 34 (2) ◽  
pp. 0214005
Author(s):  
张鲁薇 Zhang Luwei ◽  
李晓彤 Li Xiaotong ◽  
岑兆丰 Cen Zhaofeng ◽  
阮望超 Ruan Wangchao ◽  
罗红妹 Luo Hongmei
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser System

Influences of the alignment and misalignment spatial filters on the beam quality in high power laser systems

2010 ◽  
Vol 12 (9) ◽  
pp. 095704 ◽  
Author(s):  
Yan-Qi Gao ◽  
Bao-Qiang Zhu ◽  
Dai-Zhong Liu ◽  
Zun-Qi Lin
Keyword(s):  
High Power ◽  
Beam Quality ◽  
High Power Laser ◽  
Power Laser ◽  
Spatial Filters ◽  
Laser Systems

High-stability, high-beam-quality, and pulse-width-tunable 1319  nm laser system for VISAR applications in high-power laser facilities

2020 ◽  
Vol 59 (20) ◽  
pp. 6070
Author(s):  
Qi Xiao ◽  
Xue Pan ◽  
Jiangtao Guo ◽  
Xiaoqin Wang ◽  
Jiangfeng Wang ◽  
...  
Keyword(s):  
High Power ◽  
Pulse Width ◽  
High Stability ◽  
Beam Quality ◽  
Laser System ◽  
High Power Laser ◽  
Power Laser ◽  
High Beam ◽  
High Beam Quality

scholarly journals Stabilized high-power laser system for the gravitational wave detector advanced LIGO

2012 ◽  
Vol 20 (10) ◽  
pp. 10617 ◽  
Author(s):  
P. Kwee ◽  
C. Bogan ◽  
K. Danzmann ◽  
M. Frede ◽  
H. Kim ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
High Power ◽  
Laser System ◽  
Gravitational Wave Detector ◽  
High Power Laser ◽  
Power Laser ◽  
Wave Detector ◽  
High Power Laser System

scholarly journals Direct prejudgement of hot images with detected diffraction rings in high power laser system

2018 ◽  
Vol 6 ◽  
Author(s):  
Aihua Yang ◽  
Zhan Li ◽  
Dean Liu ◽  
Jie Miao ◽  
Jianqiang Zhu
Keyword(s):  
High Power ◽  
Laser System ◽  
Front Surface ◽  
High Power Laser ◽  
Power Laser ◽  
Diffraction Ring ◽  
Main Amplifier ◽  
Laser Systems ◽  
High Power Laser System ◽  
And Cluster Analysis

A direct prejudgement strategy that takes the diffraction ring as the analysis target is put forward to predict hot images induced by defects of tens of microns in the main amplifier section of high power laser systems. Analysis of hot-image formation process shows that the hot image can be precisely calculated with the extracted intensity oscillation of the diffraction ring on the front surface of the nonlinear plate. The gradient direction matching (GDM) method is adopted to detect diffraction rings. Recognition of simulated diffraction rings shows that it is feasible to directly prejudge hot images induced by those closely spaced defects and the defects that are far apart from each other. Image compression and cluster analysis are utilized to optimize the performance of the GDM method in recognizing actually collected diffraction images. Results show that hot images induced by defects of tens of microns can be directly prejudged without redundant information.

Low-noise and high-power laser systems for quantum computing

2021 ◽  
Author(s):  
Joseph Thom ◽  
Craig Picken ◽  
Gareth T. Maker ◽  
Nils Hempler ◽  
Graeme P. A. Malcolm
Keyword(s):  
Quantum Computing ◽  
High Power ◽  
Low Noise ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Systems

scholarly journals Single lens sensor and reference for auto-alignment

2018 ◽  
Vol 6 ◽  
Author(s):  
Shun-Xing Tang ◽  
Ya-Jing Guo ◽  
Dai-Zhong Liu ◽  
Lin Yang ◽  
Xiu-Qing Jiang ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Beam Line ◽  
High Power Laser ◽  
Power Laser ◽  
Basic Technique ◽  
Single Lens ◽  
Laser Systems

Auto-alignment is a basic technique for high-power laser systems. Special techniques have been developed for laser systems because of their differing structures. This paper describes a new sensor for auto-alignment in a laser system, which can also serve as a reference in certain applications. The authors prove that all of the beam transfer information (position and pointing) can theoretically be monitored and recorded by the sensor. Furthermore, auto-alignment with a single lens sensor is demonstrated on a simple beam line, and the results indicate that effective auto-alignment is achieved.

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