High-power narrow-linewidth optically pumped dilute nitride disk laser with emission at 589 nm

2010 ◽  
Author(s):  
Tomi Leinonen ◽  
Antti Härkönen ◽  
Ville-Markus Korpijärvi ◽  
Mircea Guina ◽  
Ryan J. Epstein ◽  
...  
Keyword(s):  
High Power ◽  
Dilute Nitride ◽  
Narrow Linewidth ◽  
Optically Pumped ◽  
Disk Laser

scholarly journals High-power (>1 W) dilute nitride semiconductor disk laser emitting at 1240 nm

2007 ◽  
Vol 9 (5) ◽  
pp. 140-140 ◽  
Author(s):  
J Konttinen ◽  
A Härkönen ◽  
P Tuomisto ◽  
M Guina ◽  
J Rautiainen ◽  
...  
Keyword(s):  
High Power ◽  
Dilute Nitride ◽  
Disk Laser ◽  
Semiconductor Disk Laser ◽  
Nitride Semiconductor ◽  
Dilute Nitride Semiconductor

High-Power 1.48-$\mu$m Wafer-Fused Optically Pumped Semiconductor Disk Laser

2011 ◽  
Vol 23 (13) ◽  
pp. 917-919 ◽  
Author(s):  
J. Lyytikainen ◽  
J. Rautiainen ◽  
A. Sirbu ◽  
V. Iakovlev ◽  
A. Laakso ◽  
...  
Keyword(s):  
High Power ◽  
Optically Pumped ◽  
Disk Laser ◽  
Semiconductor Disk Laser

scholarly journals Optically pumped high-power semiconductor disk laser with gain element engineered for wide tunability

2010 ◽  
Author(s):  
C. Borgentun ◽  
J. Bengtsson ◽  
A. Larsson ◽  
F. Demaria ◽  
A. Hein ◽  
...  
Keyword(s):  
High Power ◽  
Optically Pumped ◽  
Power Semiconductor ◽  
Disk Laser ◽  
Semiconductor Disk Laser

Spectral Characteristics of Narrow-Linewidth High-Power 1180 nm DBR Laser With Surface Gratings

2017 ◽  
Vol 29 (1) ◽  
pp. 114-117 ◽  
Author(s):  
Heikki Virtanen ◽  
Antti T. Aho ◽  
Jukka Viheriala ◽  
Ville-Markus Korpijarvi ◽  
Topi Uusitalo ◽  
...  
Keyword(s):  
High Power ◽  
Spectral Characteristics ◽  
Narrow Linewidth

Segmentation of Molten Pool Infrared Images Using Morphology during High Power Disk Laser Welding

2012 ◽  
Vol 201-202 ◽  
pp. 91-94
Author(s):  
Yan Xi Zhang ◽  
Xiang Dong Gao
Keyword(s):  
Laser Welding ◽  
High Power ◽  
Molten Pool ◽  
Welding Process ◽  
Histogram Equalization ◽  
Welding Quality ◽  
Infrared Images ◽  
Traditional Methods ◽  
Disk Laser ◽  
Laser Welding Process

Configuration of a molten pool is related to the laser welding quality. Analyzing the configuration of a molten pool is important to monitor the laser welding process. This paper proposes a method of segmentation of a molten pool and its shadow during high power disk laser welding, consequently provides the groundwork for reconstruction of the molten pool and analysis of welding quality. Subsection linear stretching histogram equalization was applied to enhance the contrast of the original images firstly, and then edge detection was used to highlight the edges. After that we used the morphology filtering method to produce the segmentation mask, and then combined the mask with the original images to get the final segmentation results. Also, the proposed method was compared with other traditional methods. The experimental results showed that our method not only could give better segmentation results and process large quantities images automatically, but also overcame the less-segmentation problems of traditional methods.

scholarly journals High-power radially polarized Yb:YAG thin-disk laser with high efficiency

2011 ◽  
Vol 19 (6) ◽  
pp. 5093 ◽  
Author(s):  
Marwan Abdou Ahmed ◽  
Matthias Haefner ◽  
Moritz Vogel ◽  
Christof Pruss ◽  
Andreas Voss ◽  
...  
Keyword(s):  
High Power ◽  
High Efficiency ◽  
Thin Disk ◽  
Disk Laser ◽  
Thin Disk Laser ◽  
Radially Polarized

Continuously tunable thin active layer and multisection DFB laser with narrow linewidth and high power

1989 ◽  
Vol 7 (10) ◽  
pp. 1504-1509 ◽  
Author(s):  
M. Fukuda ◽  
K. Sato ◽  
Y. Kondo ◽  
M. Nakao
Keyword(s):  
Active Layer ◽  
High Power ◽  
Narrow Linewidth ◽  
Dfb Laser
Sign in / Sign up

Export Citation Format

Share Document