A quantitative analysis of how phase errors affect the beam quality of phased arrays

2010 ◽  
Author(s):  
S W Schediwy ◽  
D Price ◽  
F Dulwich ◽  
B Mort
Keyword(s):  
Quantitative Analysis ◽  
Phased Arrays ◽  
Beam Quality ◽  
Phase Errors

scholarly journals Radiological quality of coronary guiding catheters: A quantitative analysis

1994 ◽  
Vol 33 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Jean-Paul R. Herrman ◽  
David Keane ◽  
Yukio Ozaki ◽  
Ad Den Boer ◽  
Patrick W. Serruys
Keyword(s):  
Quantitative Analysis

scholarly journals 1178 J, 527 nm near diffraction limited laser based on a complete closed-loop adaptive optics controlled off-axis multi-pass amplification laser system

2021 ◽  
Vol 9 ◽  
Author(s):  
Deen Wang ◽  
Xin Zhang ◽  
Wanjun Dai ◽  
Ying Yang ◽  
Xuewei Deng ◽  
...  
Keyword(s):  
Laser Beam ◽  
Adaptive Optics ◽  
Closed Loop ◽  
Focal Spot ◽  
Beam Quality ◽  
Laser System ◽  
Diffraction Limit ◽  
Kdp Crystal ◽  
Main Amplifier

Abstract A 1178 J near diffraction limited 527 nm laser is realized in a complete closed-loop adaptive optics (AO) controlled off-axis multi-pass amplification laser system. Generated from a fiber laser and amplified by the pre-amplifier and the main amplifier, a 1053 nm laser beam with the energy of 1900 J is obtained and converted into a 527 nm laser beam by a KDP crystal with 62% conversion efficiency, 1178 J and beam quality of 7.93 times the diffraction limit (DL). By using a complete closed-loop AO configuration, the static and dynamic wavefront distortions of the laser system are measured and compensated. After correction, the diameter of the circle enclosing 80% energy is improved remarkably from 7.93DL to 1.29DL. The focal spot is highly concentrated and the 1178 J, 527 nm near diffraction limited laser is achieved.

Beam quality of photonic-crystal fibers

2005 ◽  
Vol 23 (7) ◽  
pp. 2267-2270 ◽  
Author(s):  
A. Mafi ◽  
J.V. Moloney
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibers ◽  
Beam Quality ◽  
Crystal Fibers

scholarly journals Improvement of the spatial beam quality of laser sources with an intracavity Bragg grating

2003 ◽  
Vol 28 (4) ◽  
pp. 242 ◽  
Author(s):  
Sylvie Yiou ◽  
François Balembois ◽  
Patrick Georges ◽  
Jean-Pierre Huignard
Keyword(s):  
Beam Quality ◽  
Bragg Grating ◽  
Spatial Beam ◽  
Laser Sources

A quantitative analysis of the Quality of Service of Short Message Service in the Philippines

2010 ◽  
Author(s):  
Marnelli Canlas ◽  
Kristoffer Paolo Cruz ◽  
Ma. Kristle Dimarucut ◽  
Patrick Uyengco ◽  
Gregory Tangonan ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Quantitative Analysis ◽  
Short Message Service ◽  
The Philippines ◽  
Short Message ◽  
Message Service

Improving the beam quality of high-power laser diodes by introducing lateral periodicity into waveguides

2013 ◽  
Author(s):  
Grzegorz Sobczak ◽  
Elżbieta Dąbrowska ◽  
Marian Teodorczyk ◽  
Joanna Kalbarczyk ◽  
Andrzej Maląg
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Laser Diodes ◽  
High Power Laser ◽  
Power Laser

Influence of mirror edge effects on the beam quality of high power fast flow lasers

2007 ◽  
Author(s):  
P. V. Korolenko ◽  
N. E. Sarkarov ◽  
S. P. Pavlov ◽  
A. V. Rodin ◽  
A. M. Zotov
Keyword(s):  
Edge Effects ◽  
High Power ◽  
Beam Quality ◽  
Fast Flow
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