scholarly journals MODE CORRELATION AND COHERENT-MODE REPRESEN-TATION OF MULTI-MODE LASER BEAMS

1999 ◽  
Vol 48 (1) ◽  
pp. 58
Author(s):  
ZHANG BIN ◽  
LV BAI-DA
Keyword(s):  
Laser Beams ◽  
Mode Laser ◽  
Coherent Mode ◽  
Multi Mode

Beam width measurements of asymmetric multi-mode laser beams

1999 ◽  
Vol 31 (6) ◽  
pp. 411-418 ◽  
Author(s):  
D. Diso ◽  
M.R. Perrone ◽  
M.L. Protopapa
Keyword(s):  
Beam Width ◽  
Laser Beams ◽  
Mode Laser ◽  
Width Measurements ◽  
Multi Mode

An alternative approach to determine the spot-size of a multi-mode laser beam and its application to diode laser beams

Pramana ◽  
1999 ◽  
Vol 53 (2) ◽  
pp. 307-319 ◽  
Author(s):  
Rakesh Kapoor ◽  
PK Mukhopadhyay ◽  
Jogy George ◽  
SK Sharma
Keyword(s):  
Laser Beam ◽  
Diode Laser ◽  
Spot Size ◽  
Laser Beams ◽  
Mode Laser ◽  
Alternative Approach ◽  
Multi Mode

Competition between selected and nonselected modes in a multi-mode laser

1978 ◽  
Vol 24 (1) ◽  
pp. 11-15 ◽  
Author(s):  
W. Brunner ◽  
H. Paul
Keyword(s):  
Mode Laser ◽  
Multi Mode

Practical spot size definition for single higher-order rectangular-mode laser beams

1981 ◽  
Vol 20 (10) ◽  
pp. 1728 ◽  
Author(s):  
James T. Luxon ◽  
David E. Parker
Keyword(s):  
Spot Size ◽  
Higher Order ◽  
Laser Beams ◽  
Mode Laser

Depolarization in high power Faraday isolators with single mode and multi-mode laser incidences

2010 ◽  
Vol 22 (6) ◽  
pp. 1229-1233
Author(s):  
葛廷武 Ge Tingwu ◽  
陆丹 Lu Dan ◽  
伍剑 Wu Jian ◽  
徐坤 Xu Kun ◽  
林金桐 Lin Jintong
Keyword(s):  
High Power ◽  
Single Mode ◽  
Mode Laser ◽  
Multi Mode

scholarly journals Development of a High Spectral Resolution Lidar using a Multi-mode Laser and a Tunable Interferometer

2016 ◽  
Vol 119 ◽  
pp. 06005 ◽  
Author(s):  
Pablo Ristori ◽  
Lidia Otero ◽  
Yoshitaka Jin ◽  
Nobuo Sugimoto ◽  
Tomoaki Nishizawa ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Mode Laser ◽  
High Spectral Resolution Lidar ◽  
Multi Mode

OPTICAL POWER TRANSFER OF SINGLE-MODE LASER BEAMS THROUGH DISTORTING MEDIA USING A SEMILINEAR PHASE CONJUGATE MIRROR

1992 ◽  
Vol 01 (02) ◽  
pp. 421-430 ◽  
Author(s):  
ESA JAATINEN ◽  
BARRY LUTHER-DAVIES
Keyword(s):  
Optical Power ◽  
Single Mode ◽  
Input Power ◽  
Laser Beams ◽  
Power Transfer ◽  
Phase Conjugate ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Power Transfer Efficiency ◽  
Phase Conjugate Mirror

We report experiments on the use of a semilinear phase-conjugate mirror to transfer single-mode laser beams through distorting media. Calculations using a 1-D model show that in optimum circumstances, up to 90% of the input power can be transferred to the system output whilst experimentally 23% power transfer has been observed limited by the absorption and gain in our Barium Titanate crystal. We have also studied seeding the semilinear mirror with a separate beam as a means of starting its oscillation in conditions where high power transfer efficiency is required and investigated regions of bistability in the output which also occur in this regime.

Porosity Formation after the Irradiation Termination of Laser

2013 ◽  
Vol 800 ◽  
pp. 201-204
Author(s):  
Wang Hong ◽  
Ling Yun Wang ◽  
Ri Sheng Li
Keyword(s):  
Surface Tension ◽  
Laser Welding ◽  
Continuous Wave ◽  
Laser Beams ◽  
Formation Mechanisms ◽  
Volume Of Fluid Method ◽  
Porosity Formation ◽  
Mode Laser ◽  
Melt Pool ◽  
Solidification Processes

Porosity is formed because of the keyhole collapse. The porosity formation is associated with the melt pool dynamics, the keyhole collapse and solidification processes. The objective of the paper is t to investigate porosity formation mechanisms and fluid flow in the melt pool using the volume of fluid method. The results indicate that the formation of porosity in continuous wave keyhole mode laser welding is associated to keyhole collapse, backfilling of liquid metal close the gas exit of the laser welding keyhole, surface tension of the gas/liquid interface play an important role in the backfilling downward to the keyhole right after laser beams left.Keywords: porosity; keyhole; collapse; welding; model

Quantum fluctuations of a multi-mode laser oscillator

1981 ◽  
Vol 38 (4) ◽  
pp. 309-313 ◽  
Author(s):  
V.M. Baev ◽  
G. Gaida ◽  
H. Schröder ◽  
P.E. Toschek
Keyword(s):  
Quantum Fluctuations ◽  
Laser Oscillator ◽  
Mode Laser ◽  
Multi Mode

Generation of time-bin entangled photon pairs utilizing coherence revival property of a CW multi-mode laser

2015 ◽  
Author(s):  
Osung Kwon ◽  
Kwang-kyoon Park ◽  
Young-Sik Ra ◽  
Yong-Su Kim ◽  
Yoon-Ho Kim
Keyword(s):  
Mode Laser ◽  
Photon Pairs ◽  
Entangled Photon Pairs ◽  
Multi Mode
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