Effects of small misalignments on output beam quality in off-axis negative-branch confocal strip unstable resonator

2009 ◽  
Author(s):  
Gen Li ◽  
Xiahui Tang ◽  
Du Wang
Keyword(s):  
Beam Quality ◽  
Unstable Resonator ◽  
Output Beam ◽  
Negative Branch

Effect of thermal distortions of cavity mirrors on output beam quality of high power lasers

2013 ◽  
Vol 25 (5) ◽  
pp. 1134-1138
Author(s):  
韩开 Han Kai ◽  
吴双 Wu Shuang ◽  
张彬 Zhang Bin
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Output Beam ◽  
High Power Lasers

Research on output beam characteristic from unstable resonator of DF laser

2015 ◽  
Author(s):  
Wei-yan Ren ◽  
Hui Wang ◽  
Lei Cai ◽  
Song-qing Zhou ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Unstable Resonator ◽  
Output Beam ◽  
Beam Characteristic

Research on Thermal Effect and Mode Properties of a Q-Switched Laser by Using Shack-Hartmann Wavefront Sensor

2011 ◽  
Vol 308-310 ◽  
pp. 1444-1447
Author(s):  
Xiang Zhang
Keyword(s):  
Thermal Lens ◽  
Matrix Theory ◽  
Second Harmonic ◽  
Spherical Aberration ◽  
Beam Quality ◽  
Wavefront Sensor ◽  
Wavefront Aberration ◽  
Output Beam ◽  
Lens Effect ◽  
Thermal Lens Effect

Results of an experimental and theoretical analysis of the proprerties of a LD pumped laser using a stable resonator and second harmonic conversion crystal are presented. The influence of thermal lens effect on laser output mode and beam quality has been discussed briefly by using the transfer matrix theory. In this paper, further experiment on the output beam quality of a LD pumped acousto-optic Q-switched laser has been also performed by adopting Shack-Hartmann wavefront sensor and Zernike mode reconstruction theory. Using this method, PV and RMS error of aberration wavefront, the first 35-order Zernike aberrations can be acquired. Furthermore, Strehl ratio curve of output beam and the distribution of circle energy can also be obtained by further calculation, so mode properities can be comprehensively understood. Experimental results show that the beam wavefront aberration is mainly concentrated in the first 15 orders of Zernike aberration, mainly including the defocus A3, the low-order astigmatism A4 and A5, the coma and spherical aberration because of the thermal-lens effect.

Negative-branch unstable resonator Nd:YAG laser

1976 ◽  
Vol 15 (6) ◽  
pp. 1465 ◽  
Author(s):  
T. F. Ewanizky ◽  
J. M. Craig
Keyword(s):  
Nd:Yag Laser ◽  
Unstable Resonator ◽  
Negative Branch

Novel laser resonator with improved output beam quality

1994 ◽  
Author(s):  
Jiaze Li ◽  
Chunqing Gao ◽  
Chang Ming Zhao ◽  
Guang Hui Wei
Keyword(s):  
Beam Quality ◽  
Laser Resonator ◽  
Output Beam

scholarly journals Improving the output beam quality of multimode laser resonators

2005 ◽  
Vol 13 (7) ◽  
pp. 2722 ◽  
Author(s):  
Amiel A. Ishaaya ◽  
Vardit Eckhouse ◽  
Liran Shimshi ◽  
Nir Davidson ◽  
Asher A. Friesem
Keyword(s):  
Beam Quality ◽  
Output Beam ◽  
Laser Resonators ◽  
Multimode Laser

Laser Beam Quality Optimization of No-Chain Pulsed HF Laser Using Unstable Resonator

2017 ◽  
Vol 44 (4) ◽  
pp. 0401002
Author(s):  
朱峰 Zhu Feng ◽  
黄珂 Huang Ke ◽  
周松青 Zhou Songqing ◽  
栾昆鹏 Luan Kunpeng ◽  
沈炎龙 Shen Yanlong ◽  
...  
Keyword(s):  
Laser Beam ◽  
Beam Quality ◽  
Unstable Resonator ◽  
Quality Optimization ◽  
Laser Beam Quality ◽  
Hf Laser
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