Laser tube for a frequency-stabilized laser

1999 ◽  
Author(s):  
M. A. Fedotov ◽  
Elena G. Chulyaeva
Keyword(s):  
Laser Tube ◽  
Frequency Stabilized Laser

scholarly journals Experimental Investigation of the Effects of Irradiating Schemes in Laser Tube Bending Process

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1123
Author(s):  
Mehdi Safari ◽  
Ricardo J. Alves de Sousa ◽  
Jalal Joudaki
Keyword(s):  
Laser Beam ◽  
Contact Process ◽  
Steel Tube ◽  
Thickness Variation ◽  
Tube Bending ◽  
Lateral Bending ◽  
Bending Angle ◽  
Laser Tube ◽  
Bending Process ◽  
Thickness Variations

The laser tube bending process (LTBP) process is a thermal non-contact process for bending tubes with less springback and less thinning of the tube. In this paper, the laser tube bending process will be studied experimentally. The length of irradiation and irradiation scheme are two main affecting process parameters in the LTBP process. For this purpose, different samples according to two main irradiation schemes (Circular irradiating scheme (CIS) and axial irradiating scheme (AIS)) and different lengths of laser beam irradiation (from 4.7 to 28.2 mm) are fabricated. The main bending angle of laser-bent tube, lateral bending angle, ovality, and thickness variations is measured experimentally, and the effects of the irradiating scheme and the length of irradiation are investigated. An 18 mm diameter, 1 mm thick mild steel tube was bent with 1100 Watts laser beam. The results show that for both irradiating schemes, by increasing the irradiating length of the main and lateral bending angle, the ovality and thickness variation ratio of the bent tube are increased. In addition, for a similar irradiating length, the main bending angle with AIS is considerably higher than CIS. The lateral bending angle by AIS is much less than the lateral bending angle with CIS. The results demonstrate that the ovality percentage and the thickness variation ratio for the laser-bent tube obtained by CIS are much more than the values associated with by AIS laser-bent tube.

Tapered laser tube

1977 ◽  
Vol 28 (4) ◽  
pp. 150-150
Author(s):  
J Briscoe
Keyword(s):  
Laser Tube ◽  
Tapered Laser

Inexpensive He-Ne laser tube construction

1977 ◽  
Vol 9 (2) ◽  
pp. 78-80
Author(s):  
K.G. Hernqvist ◽  
R.W. Longsderff
Keyword(s):  
Laser Tube

A novel path strategy design for precise 2D and 3D laser tube forming process; experimental and numerical investigation

Optik ◽  
2020 ◽  
Vol 206 ◽  
pp. 164302 ◽  
Author(s):  
S. Esmaeil Khandandel ◽  
S.M. Hossein Seyedkashi ◽  
Mahmoud Moradi
Keyword(s):  
Numerical Investigation ◽  
Forming Process ◽  
Tube Forming ◽  
Laser Tube ◽  
Strategy Design ◽  
2D And 3D

Frequency-stabilized laser-diode-pumped Nd:YAG laser

1989 ◽  
Vol 14 (12) ◽  
pp. 609 ◽  
Author(s):  
David Shoemaker ◽  
Graham Kerr ◽  
Alain Brillet ◽  
C. Nary Man ◽  
Olivier Crégut
Keyword(s):  
Laser Diode ◽  
Nd:Yag Laser ◽  
Diode Pumped ◽  
Frequency Stabilized Laser ◽  
Diode Pumped Nd:Yag Laser

scholarly journals Ein Ionen-Laser für metrologische Anwendungen

1970 ◽  
Vol 25 (1) ◽  
pp. 156
Author(s):  
E. Engelhard ◽  
F. Spieweck
Keyword(s):  
Vapour Pressure ◽  
Laser Tube ◽  
Pressure Controlled

Abstract A xenon isotop laser has been built which emits Xe(II)-lines in the visible. The vapour pressure controlled laser tube operates at low current. Preliminary vacuum wavelength values have been found to be (542.065 49±0.000 02) nm and (627.254 64±0.000 01) nm.

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