All-fiber passively Q-switched laser with flat-top beam emissions

2021 ◽  
Author(s):  
Zhicheng Zhang ◽  
Sha Wang ◽  
Xingwen Hu ◽  
shaoqian wang ◽  
Yongjie Pu ◽  
...  
Keyword(s):  
Flat Top Beam

scholarly journals Realizing Gaussian to flat-top beam shaping in traveling-wave amplification

2017 ◽  
Vol 25 (26) ◽  
pp. 33226 ◽  
Author(s):  
Tianzhuo Zhao ◽  
Zhongwei Fan ◽  
Hong Xiao ◽  
Ke Huang ◽  
Zhenao Bai ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Beam Shaping ◽  
Wave Amplification ◽  
Flat Top Beam

scholarly journals Demonstration of flat-top beam illumination in widefield multiphoton microscopy

2019 ◽  
Vol 25 (01) ◽  
pp. 1
Author(s):  
Mohammad M. Kabir ◽  
Hemangg S. Rajput ◽  
Varun A. Kelkar ◽  
Adriana C. Salazar Coariti ◽  
Kimani C. Toussaint
Keyword(s):  
Multiphoton Microscopy ◽  
Flat Top Beam

Amplification of a propagation invariant vector flat-top beam

2021 ◽  
Author(s):  
Justin Harrison ◽  
Andrew Forbes ◽  
Darryl Naidoo
Keyword(s):  
Invariant Vector ◽  
Flat Top Beam

Fluidic Laser Beam Shaper by Using Thermal Lens Effect

2011 ◽  
Author(s):  
Hong Duc Doan ◽  
Yoshihiko Akamine ◽  
Kazuyoshi Fushinobu
Keyword(s):  
Refractive Index ◽  
Pump Power ◽  
Absorption Coefficient ◽  
Laser Beam ◽  
Probe Beam ◽  
Thermal Lens ◽  
Refractive Index Distribution ◽  
Index Distribution ◽  
Thermal Lens Effect ◽  
Flat Top Beam

Laser measurement and laser processing techniques have been gaining strong attention from various applications [1,2]. This research aims at the development of a fluidic laser beam shaper, and in order to fulfill the objective, characteristics of the thermal lens effect are studied. This phenomenon has the optical property of a concave lens since the refractive index distribution on the optical axis is formed when the liquid is irradiated. One reason for the refractive index distribution in the liquid is the temperature distribution in the liquid when it is irradiated. In this research, effects of the pump power and propagation distance of the probe beam to probe beam profile are investigated experimentally and theoretically, in order to develop fluidic laser beam shaper. It is indicated that, by controlling some parameters in thermal lens system as pump power (in the regime of linear optics) and absorption coefficient, input Gaussian beam can be converted into flat-top beam profile. The relationship among the distance to obtain a flat-top beam, pump power and absorption coefficient is investigated to show the flexibility of fluidic laser beam shaper in many fields of laser application.

Investigation of combining output a uniform flat-top beam of six solid state lasers by DOE

2017 ◽  
Author(s):  
Meng-zhen Zhu ◽  
Cheng Yong ◽  
Liu Xu ◽  
Tan Caoyong ◽  
Xia Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Lasers ◽  
Flat Top Beam

Flat-top Beam from a 50μm-Core Yb-doped Leakage Channel Fiber

2014 ◽  
Author(s):  
Fanting Kong ◽  
Guancheng Gu ◽  
Thomas W. Hawkins ◽  
Joshua Parsons ◽  
Maxwell Jones ◽  
...  
Keyword(s):  
Flat Top Beam

Production of flat top beam profiles for high energy lasers

1980 ◽  
Vol 51 (3) ◽  
pp. 375-376 ◽  
Author(s):  
R. E. Grojean ◽  
D. Feldman ◽  
J. F. Roach
Keyword(s):  
High Energy ◽  
High Energy Lasers ◽  
Flat Top Beam

A Nd: YAG laser with a flat-top beam profile and constant divergence

1997 ◽  
Vol 29 (2) ◽  
pp. 57-61 ◽  
Author(s):  
W.C. Yen ◽  
C.T. Huang ◽  
H.P. Liu ◽  
L.P. Lee
Keyword(s):  
Beam Profile ◽  
Yag Laser ◽  
Flat Top Beam

Bimetallic grayscale photomasks written using flat-top beam vs. Gaussian beam

2012 ◽  
Author(s):  
Reza Qarehbaghi ◽  
Glenn H. Chapman ◽  
Waris Boonyasiriwat
Keyword(s):  
Gaussian Beam ◽  
Flat Top Beam
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