Use of adaptive optics elements in the industrial cw CO2 laser for control of the output beam characteristics

2006 ◽  
Author(s):  
G. Rabczuk
Keyword(s):  
Adaptive Optics ◽  
Output Beam ◽  
Beam Characteristics

Influence of the intracavity perturbations on the laser output beam characteristics

2003 ◽  
Author(s):  
Grazyna T. Rabczuk ◽  
S. A. Labuda ◽  
M. Sawczak ◽  
G. Sliwinski
Keyword(s):  
Laser Output ◽  
Output Beam ◽  
Beam Characteristics

scholarly journals Surface-Emitting Metal Nanocavity Lasers

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Martin T. Hill ◽  
Milan J. H. Marell
Keyword(s):  
Output Beam ◽  
Surface Emitting Lasers ◽  
Emitting Lasers ◽  
Beam Characteristics

There has been considerable interest in metallic nanolasers recently and some forms of these devices constructed from semiconductor pillars can be considered as surface-emitting lasers. We compare two different realized versions of these nanopillar devices, one with a trapped cutoff mode in the pillar, another with a mode that propagates along the pillar. For the cutoff mode devices we introduce a method to improve the output beam characteristics and look at some of the challenges in improving such devices.

Analyzing Output Phase Properties of Confocal Positive-Branch Laser Resonators by Use of Hartmann-Shack Sensor

2011 ◽  
Vol 282-283 ◽  
pp. 561-564
Author(s):  
Xiang Zhang
Keyword(s):  
Adaptive Optics ◽  
Beam Quality ◽  
High Order ◽  
Output Beam ◽  
High Order Aberration ◽  
Main Component ◽  
Coma Aberration ◽  
High Order Aberrations ◽  
Structure Properties ◽  
Phase Properties

The effect of intracavity aberrated perturbation on output mode structure properties of passive confocal unstable resonator is been experimentally researched by adopting H-S wavefront sensor and Zernike modal wavefront reconstruction on the basis of numerical simulation. Results show that intracavity tilted perturbation notablely affects outcoupled intensity distribution, and will also increase some high-order aberrations of beam phase properties. However, low-order Zernike tilt aberration is the main component when phase-tilted perturbation is introduced into the resonator. Defocus, astigmatism and coma aberration will all be brought, and also such high-order aberration included in wavefront will directly degrade output beam quality. When correction device of adaptive optics adopted for intracavity aberration correction, correction of tilted aberration should be considered firstly.

Estimation of output beam characteristics of laser with unstable resonator and turbulent active medium

Laser Physics ◽  
2009 ◽  
Vol 19 (5) ◽  
pp. 1131-1135 ◽  
Author(s):  
V. D. Dubrov ◽  
R. V. Grishaev ◽  
M. D. Homenko ◽  
Yu. N. Zavalov
Keyword(s):  
Active Medium ◽  
Unstable Resonator ◽  
Output Beam ◽  
Beam Characteristics

Optical resonators with Gaussian reflectivity mirrors: output beam characteristics

1984 ◽  
Vol 23 (21) ◽  
pp. 3845 ◽  
Author(s):  
Nathalie McCarthy ◽  
Pierre Lavigne
Keyword(s):  
Optical Resonators ◽  
Output Beam ◽  
Beam Characteristics

Output beam characteristics of a Nd:YVO 4 miniature laser

1998 ◽  
Author(s):  
Nicolaie A. Pavel ◽  
Takunori Taira ◽  
M. Furuhata ◽  
Takao Kobayashi
Keyword(s):  
Output Beam ◽  
Beam Characteristics

Output beam characteristics of 1.3 µm GaInAsP/InP SL-QW lasers with narrow and circular output beam

1995 ◽  
Vol 31 (7) ◽  
pp. 559-560 ◽  
Author(s):  
A. Kasukawa ◽  
N. Yokouchi ◽  
N. Iwai ◽  
N. Yamanaka
Keyword(s):  
Output Beam ◽  
Beam Characteristics
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