Fiber-coupled diode laser systems up to 2-kW output power

2000 ◽  
Author(s):  
Friedhelm Dorsch ◽  
Veit Bluemel ◽  
Matthias Schroeder ◽  
Dirk Lorenzen ◽  
Petra Hennig ◽  
...  
Keyword(s):  
Diode Laser ◽  
Output Power ◽  
Laser Systems

scholarly journals Diode Laser Irradiation in Endodontic Therapy through Cycles - in vitro Study

2017 ◽  
Vol 21 (2) ◽  
pp. 108-111 ◽  
Author(s):  
Dijana Trišić ◽  
Bojana Ćetenović ◽  
Igor Jovanović ◽  
Elizabeta Gjorgievska ◽  
Branka Popović ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Temperature Variation ◽  
Diode Laser ◽  
Output Power ◽  
In Vitro Study ◽  
Root Surface ◽  
Vitro Study ◽  
Continuous Mode ◽  
Laser Systems

Summary Background/Aim: The aim of this in vitro study was to investigate the influence of irradiation cycles and resting periods, on thermal effects on the external root surface during root canal irradiation of two diode laser systems (940 nm and 975 nm), at output powers of 1 W and 2 W in continuous mode. In previous studies the rising of temperature above 7°C has been reported as biologically accepted to avoid periodontal damage on the external root surface. Material and Methods: Twenty human inferior incisors were randomly distributed into four groups, the 940 nm, and the 975 nm diode laser irradiation, both with an output power of 1 W and 2 W, in continuous mode. The thermographic camera was used to detect temperature variations on the external root surface. Digital radiography of the samples was made. Results: After three cycles of irradiation, at apical third of the root, mean temperature variation by 940 nm diode laser irradiation was 2.88°C for output power of 1 W, and 6.52°C for output power of 2 W. The 975 nm laser caused a higher temperature increase in the apical region, with temperature variation of 13.56°C by an output power of 1 W, and 30.60°C at 2 W, with a statistical significance of p ≤ 0.0001 between two laser systems compared for the same power. The resting periods of 20 s between cycles were enough to lower temperature under 7°C in the case of 1 W and 2 W for 940 nm diode laser, while for 975 nm laser, after three irradiation cycles overheating occurred at both output power rates. Conclusion: Three cycles irradiation of 940 nm diode laser, with resting periods of 20 seconds, allowed safe usage of 1 W and 2 W in CW for endodontic treatment. For 975 nm at a power rate of 1 W, the last resting period drop the temperature near the safe limit and it came under 7°C in a period less than a minute, while at the power of 2 W the resting periods were not long enough for the safe temperature decrease.

Fibre-coupled air-cooled high-power diode laser systems

2008 ◽  
Author(s):  
Daniel Bartoschewski ◽  
Jens Meinschien ◽  
Udo Fornahl
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Laser Systems ◽  
Power Diode ◽  
High Power Diode Laser

Diode laser systems for 1.8- to 2.3-μm wavelength range

2010 ◽  
Author(s):  
Márc T. Kelemen ◽  
Jürgen Gilly ◽  
Rudolf Moritz ◽  
Jeanette Schleife ◽  
Mathias Fatscher ◽  
...  
Keyword(s):  
Diode Laser ◽  
Wavelength Range ◽  
Laser Systems

Diode-laser-pumped tunable 896–9395-nm neodymium-doped fiber laser with 43-mW output power

1998 ◽  
Vol 37 (15) ◽  
pp. 3276 ◽  
Author(s):  
Anthony L. Cook ◽  
Herbert D. Hendricks
Keyword(s):  
Fiber Laser ◽  
Diode Laser ◽  
Output Power

Diode laser systems based on nonlinear frequency conversion

2018 ◽  
pp. 209-245
Author(s):  
Ole Bjarlin Jensen ◽  
Anders Kragh Hansen ◽  
Christian Pedersen ◽  
Peter E. Andersen ◽  
Paul Michael Petersen
Keyword(s):  
Diode Laser ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Laser Systems

1030nm DBR tapered diode laser with up to 16 W of optical output power

2017 ◽  
Author(s):  
A. Müller ◽  
C. Zink ◽  
J. Fricke ◽  
F. Bugge ◽  
O. Brox ◽  
...  
Keyword(s):  
Diode Laser ◽  
Output Power ◽  
Optical Output Power ◽  
Optical Output ◽  
Tapered Diode Laser

scholarly journals Narrow bandwidth interference filter-stabilized diode laser systems for the manipulation of neutral atoms

2007 ◽  
Vol 280 (2) ◽  
pp. 443-447 ◽  
Author(s):  
M. Gilowski ◽  
Ch. Schubert ◽  
M. Zaiser ◽  
W. Herr ◽  
T. Wübbena ◽  
...  
Keyword(s):  
Diode Laser ◽  
Interference Filter ◽  
Neutral Atoms ◽  
Narrow Bandwidth ◽  
Laser Systems
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