scholarly journals A novel cleanliness control method for disk amplifiers

2020 ◽  
Vol 8 ◽  
Author(s):  
Yangshuai Li ◽  
Bingyan Wang ◽  
Panzheng Zhang ◽  
Yanli Zhang ◽  
Yanfeng Zhang ◽  
...  
Keyword(s):  
Optimization Design ◽  
Control Method ◽  
High Power Laser ◽  
Power Laser ◽  
Time Saving ◽  
Clean Environment ◽  
Control Scheme ◽  
Laser Systems ◽  
Computational Fluid Dynamics Cfd ◽  
Energy Amplification

Abstract As the key part for energy amplification of high-power laser systems, disk amplifiers must work in an extremely clean environment. Different from the traditional cleanliness control scheme of active intake and passive exhaust (AIPE), a new method of active exhaust and passive intake (AEPI) is proposed in this paper. Combined with computational fluid dynamics (CFD) technology, through the optimization design of the sizes, shapes, and locations of different outlets and inlets, the turbulence that is unfavorable to cleanliness control is effectively avoided in the disk amplifier cavity during the process of AEPI. Finally, the cleanliness control of the cavity of the disk amplifier can be realized just by once exhaust. Meanwhile, the micro negative pressure environment in the amplifier cavity produced during the exhaust process reduces the requirement for sealing. This method is simple, time saving, gas saving, efficient, and safe. It is also suitable for the cleanliness control of similar amplifiers.

Large Mode Area Solid-Core Photonic Bandgap Yb-doped Fiber with Hetero-Structured Cladding for Compact High-Power Laser Systems

2021 ◽  
pp. 1-1
Author(s):  
Olivier Vanvincq ◽  
Andy Cassez ◽  
Remi Habert ◽  
Hicham El Hamzaoui ◽  
Karen Baudelle ◽  
...  
Keyword(s):  
High Power ◽  
Photonic Bandgap ◽  
Solid Core ◽  
High Power Laser ◽  
Power Laser ◽  
Large Mode Area ◽  
Laser Systems ◽  
Mode Area

scholarly journals Wavefront Shaping by a Small-Aperture Deformable Mirror in the Front Stage for High-Power Laser Systems

2017 ◽  
Vol 7 (4) ◽  
pp. 379 ◽  
Author(s):  
Sensen Li ◽  
Luoxian Zhou ◽  
Can Cui ◽  
Kai Wang ◽  
Xiusheng Yan ◽  
...  
Keyword(s):  
High Power ◽  
Deformable Mirror ◽  
High Power Laser ◽  
Power Laser ◽  
Small Aperture ◽  
Laser Systems ◽  
Wavefront Shaping ◽  
Front Stage

Applications of OALCLV in the high power laser systems

2017 ◽  
Author(s):  
Dajie Huang ◽  
Honghai An ◽  
Wei Fan ◽  
Hui Wei ◽  
Jiangfeng Wang ◽  
...  
Keyword(s):  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Systems

scholarly journals High-Power Laser Systems of UV and Visible Spectral Ranges

2018 ◽  
Author(s):  
Nikolay Ivanov ◽  
Valery Losev ◽  
Yury Panchenko ◽  
Viktor Tarasenko
Keyword(s):  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Systems ◽  
Spectral Ranges

scholarly journals Does hypericin boost the efficacy of high-power laser? A preliminary experimental study on rats

2014 ◽  
Vol 132 (6) ◽  
pp. 348-352
Author(s):  
Murat Zor ◽  
Serdar Goktas ◽  
Ibrahim Yildirim ◽  
Unal Orhan Zorba ◽  
Seref Basal ◽  
...  
Keyword(s):  
High Power ◽  
Quadriceps Muscle ◽  
Ktp Laser ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Applications ◽  
Symptomatic Benign Prostatic Hyperplasia ◽  
Military Medical Academy ◽  
Medical Academy ◽  
Laser Systems

CONTEXT AND OBJECTIVE: Lasers are widely used in treating symptomatic benign prostatic hyperplasia. In current practice, potassium titanyl phosphate (KTP) lasers are the most common type of laser systems used. The aim here was to evaluate the rapid effect of high-power laser systems after application of hypericin.DESIGN AND SETTING: Experimental animal study conducted in the Department of Urology, Gülhane Military Medical Academy, Ankara, Turkey, in 2012.METHODS: Sixteen rats were randomized into four groups: 120 W KTP laser + hypericin; 120 W KTP laser alone; 80 W KTP laser + hypericin; and 80 W KTP laser alone. Hypericin was given intraperitoneally two hours prior to laser applications. The laser incisions were made through the quadriceps muscle of the rats. The depth and the width of the laser incisions were evaluated histologically and recorded.RESULTS: To standardize the effects of the laser, we used the ratio of depth to width. These new values showed us the depth of the laser application per unit width. The new values acquired were evaluated statistically. Mean depth/width values were 231.6, 173.6, 214.1 and 178.9 in groups 1, 2, 3 and 4, respectively. The most notable result was that higher degrees of tissue penetration were achieved in the groups with hypericin (P < 0.05).CONCLUSIONS: The encouraging results from our preliminary study demonstrated that hypericin may improve the effects of KTP laser applications.

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