Free-running and imposed-wavelength cavities for high power continuous-wave Tm3+, Ho3+ codoped single-oscillator fiber laser

2021 ◽  
Author(s):  
Arnaud Motard ◽  
Christophe Louot ◽  
Thierry Robin ◽  
Benoit Cadier ◽  
Nicolas Dalloz ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
Single Oscillator ◽  
Free Running

Single-frequency, high-power, continuous-wave fiber-laser-pumped Ti:sapphire laser

2011 ◽  
Vol 51 (1) ◽  
pp. 15 ◽  
Author(s):  
Suddapalli Chaitanya Kumar ◽  
Goutam Kumar Samanta ◽  
Kavita Devi ◽  
Stefano Sanguinetti ◽  
Majid Ebrahim-Zadeh
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
Single Frequency ◽  
Ti:Sapphire Laser

High-power continuous-wave cladding-pumped Raman fiber laser

2006 ◽  
Vol 31 (15) ◽  
pp. 2290 ◽  
Author(s):  
C. A. Codemard ◽  
P. Dupriez ◽  
Y. Jeong ◽  
J. K. Sahu ◽  
M. Ibsen ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
Raman Fiber Laser

Elucidation of Welding Stability Based on Keyhole Configuration during High-Power Fiber Laser Welding

2011 ◽  
Vol 314-316 ◽  
pp. 941-944 ◽  
Author(s):  
Xiang Dong Gao ◽  
Qian Wen ◽  
Seiji Katayama
Keyword(s):  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
High Energy ◽  
High Energy Density ◽  
Deep Penetration ◽  
Characteristic Parameters ◽  
Fiber Laser Welding ◽  
Welding Stability

During deep penetration laser welding, a keyhole is formed in the molten pool due to the intense recoil pressure of evaporation. The formation of the keyhole leads to a deep penetration weld with a high aspect ratio and this is the most advantageous feature of welding by high-energy-density beams. The configuration and characteristics of a keyhole are related to the welding stability. In a fiber laser butt-joint welding of Type 304 austenitic stainless steel plate with a high power 10 kW continuous wave fiber laser, an infrared sensitive high-speed video camera was used to capture the dynamic images of the molten pools. The configurations of a keyhole were analyzed through image processing techniques such as median filtering, wiener filtering and gray level threshold segmentation to obtain the edge of a keyhole. The width and the area of a keyhole were defined as the keyhole characteristic parameters, and the deviation between the laser beam and weld center as a parameter reflecting the welding stability. By analyzing the change of the keyhole characteristic parameters during welding process, it was found that these parameters were related to the welding stability. Welding experimental results and analysis of the keyhole characteristic parameters confirmed that the welding stability could be monitored and distinguished by a keyhole configuration during high-power fiber laser welding.

Widely tunable (>100 nm) continuous-wave narrow-linewidth high-power thulium fiber laser

2009 ◽  
Author(s):  
Timothy S. McComb ◽  
Vikas Sudesh ◽  
Lawrence Shah ◽  
Robert A. Sims ◽  
Martin C. Richardson
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
Narrow Linewidth ◽  
Thulium Fiber Laser

High-power continuous-wave 3- and 2-μm cascade Ho/sup 3+/:ZBLAN fiber laser and its medical applications

1999 ◽  
Vol 5 (4) ◽  
pp. 936-943 ◽  
Author(s):  
T. Sumiyoshi ◽  
H. Sekita ◽  
T. Arai ◽  
S. Sato ◽  
M. Ishihara ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Continuous Wave ◽  
Medical Applications
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