Helical TE N/sub 2/ laser with circular beam cross section

Journal Article · Thu Nov 01 04:00:00 EST 1979 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325896· OSTI ID:5877982

Krahn, K

In this paper the operation of a helical TE N/sub 2/ laser is reported which, according to its radial gain profile caused by the helical electrode geometry, produces a circular symmetric laser beam that is easily focused by ordinary spherical optics. Exhibiting a circular beam cross section together with a 20-mm near-field beam diameter the helical TE N/sub 2/ laser generates output pulse peak powers of typically 480 kW within a pulse width (FWHM) of 5 ns. We believe the device is the first helical TE N/sub 2/ laser producing output data that favorably compare with those of conventional designs.

• Research Organization: Lehrstuhl fuer Allgemeine Elektrotechnik und Elektrooptik, Ruhr-Universitaet Bochum, D-4630 Bochum, West Germany
• OSTI ID: 5877982
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:11; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CONFIGURATION
CROSS SECTIONS
CRYOGENIC FLUIDS
DATA
ELECTRODES
ELEMENTS
FLUIDS
FOCUSING
GAIN
GAS LASERS
GEOMETRY
HELICAL CONFIGURATION
INFORMATION
LASERS
LENSES
MATHEMATICS
NITROGEN
NONMETALS
PULSES
SYMMETRY