Semiconductor laser pumping of continuous-wave Pr3+[hyphen (true graphic)]doped ZBLAN fibre laser

2005 ◽  
Vol 41 (14) ◽  
pp. 794 ◽  
Author(s):  
A. Richter ◽  
H. Scheife ◽  
E. Heumann ◽  
G. Huber ◽  
W. Seelert ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Continuous Wave ◽  
Fibre Laser ◽  
Laser Pumping

Study of Effect on Tensile Stress Test from Distortion of Fibre Laser Welded Ti6Al4V Using FEA

2011 ◽  
Vol 314-316 ◽  
pp. 1889-1894
Author(s):  
Yu Fan ◽  
Philip Shipway ◽  
Geoff Tansley ◽  
Zheng Chen
Keyword(s):  
Tensile Stress ◽  
Laser Welding ◽  
Tensile Test ◽  
Thin Plate ◽  
Stress Level ◽  
Continuous Wave ◽  
Stress Test ◽  
Welding Distortion ◽  
Fibre Laser

Distortion is one type of defect in the weld, which is troublesome for some reasons, especially in thin plate welding. Distortion was found in fibre laser welding processing for 0.7mm thickness Ti6Al4V plate. The purpose of this paper is to understand and evaluate the effect of distortion on stress level by FEA and tensile test. A group of 0.7mm Ti6Al4V plates welded using continuous wave fibre laser. FEA models were established for fibre laser welded Ti6Al4V in abaqus 6.7.

High-Power Broad Area Laser Diode with Internal Wavelength Stabilisation at 975 Nm for Yb Fibre Laser Pumping

2014 ◽  
Author(s):  
M. Krakowski ◽  
M. Lamponi ◽  
O. Drisse ◽  
A. Larrue ◽  
M. Lecomte ◽  
...  
Keyword(s):  
Laser Diode ◽  
High Power ◽  
Fibre Laser ◽  
Broad Area ◽  
Laser Pumping

scholarly journals Continuous-wave oscillation of holmium-doped silica fibre laser

1989 ◽  
Vol 25 (9) ◽  
pp. 593 ◽  
Author(s):  
D.C. Hanna ◽  
R.M. Percival ◽  
R.G. Smart ◽  
J.E. Townsend ◽  
A.C. Tropper
Keyword(s):  
Continuous Wave ◽  
Fibre Laser ◽  
Wave Oscillation ◽  
Silica Fibre

Green, holmium-doped upconversion fibre laser pumped by red semiconductor laser

1997 ◽  
Vol 33 (23) ◽  
pp. 1958 ◽  
Author(s):  
D.S. Funk ◽  
J.G. Eden ◽  
J.S. Osinski ◽  
B. Lu
Keyword(s):  
Semiconductor Laser ◽  
Fibre Laser

Continuous-wave Cr4+: Mg2SiO4laser pumped by neodymium fibre-laser radiation

1997 ◽  
Vol 27 (9) ◽  
pp. 751-752
Author(s):  
Evgenii M Dianov ◽  
Igor' A Bufetov ◽  
V I Karpov ◽  
M V Grekov ◽  
A M Prokhorov
Keyword(s):  
Laser Radiation ◽  
Continuous Wave ◽  
Fibre Laser

Experimental Studies of Rocket Fuels Oxygen--Hydrogen, Oxygen--Methane Ignition by a Semiconductor Laser

2021 ◽  
pp. 80-97
Author(s):  
S.G. Rebrov ◽  
V.A. Golubev ◽  
A.N. Golikov ◽  
A.E. Morgunov
Keyword(s):  
Semiconductor Laser ◽  
Continuous Wave ◽  
Rocket Engine ◽  
Experimental Studies ◽  
Operating Parameter ◽  
Laser Ignition ◽  
Low Thrust ◽  
Ignition System ◽  
Radiation Output ◽  
Fuel Mixtures

The paper presents results of experimental studies aimed at introducing laser ignition of fuel mixtures into aero-space design practice. The source of ignition energy was a semiconductor laser featuring fibre radiation output, operating in a quasi-continuous wave mode. We carried out experiments for oxygen--hydrogen and oxygen--methane fuel types. The purpose of our research was to demonstrate the fundamental possibility of implementing fuel ignition by means of this type of laser, using a rocket engine igniter and a low-thrust rocket engine as examples. Employing semiconductor lasers directly as an ignition source for fuel mixtures in aerospace technology is attractive as it may feasibly reduce the requirements for thermal conditions during operation of the laser ignition system on board a rocket or spacecraft, as well as expand the range of permissible vibration and shock loads. The paper presents experimental results that delineate operating parameter ranges and operation cyclograms for the devices under consideration that ensured stable ignition of oxygen--hydrogen and oxygen--methane fuel mixtures; we also list the required power parameters for a semiconductor laser. The investigation revealed the specifics of using a semiconductor laser-based ignition system, which will be useful in developing laser rocket launching devices, ensuring reliable repeated on-off functionality

scholarly journals Continuous-wave 155 μm diode-pumped surface emitting semiconductor laser for broadband multiplex spectroscopy

2007 ◽  
Vol 32 (11) ◽  
pp. 1387 ◽  
Author(s):  
M. Jacquemet ◽  
N. Picqué ◽  
G. Guelachvili ◽  
A. Garnache ◽  
I. Sagnes ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Continuous Wave ◽  
Diode Pumped

980 nm diode-pumped continuous wave mid-IR (2.7 [micro sign]m) fibre laser

1998 ◽  
Vol 34 (24) ◽  
pp. 2331 ◽  
Author(s):  
E. Poppe ◽  
B. Srinivasan ◽  
R.K. Jain
Keyword(s):  
Continuous Wave ◽  
Fibre Laser ◽  
Diode Pumped
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