Traveling-wave excitation of helical electrode TE N/sub 2/ laser

Journal Article · Sun Jul 01 04:00:00 EDT 1984 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1137889· OSTI ID:7048960

Chang, S H; Matsumura, S; Teii, S

The traveling-wave excitation method has been applied to a helical electrode-type TE N/sub 2/ laser to increase the laser output as well as to obtain good beam quality. The traveling-wave excitation was achieved by dividing the discharge into ten sections. The discharge time interval between sequent section can be controlled by the length of coaxial cables. Primary experimental results show that the beam cross section is circular and the output in the direction of the traveling wave is 2.2 times that in the other direction. The laser output with a reflecting mirror is approximately two orders of magnitude larger than that without a mirror. The decrease of laser output with increasing pulse repetition rate has been explained and discussed in connection with the long-lived nitrogen afterglow phenomena.

• Research Organization: Department of Electrical Engineering, Musashi Institute of Technology, Tamazutsumi 1-28, Setagaya-Ku,Tokyo, Japan
• OSTI ID: 7048960
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 55:7; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AFTERGLOW
AUGMENTATION
CONFIGURATION
DATA
ELECTRODES
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
GAS LASERS
HELICAL CONFIGURATION
INFORMATION
LASER RADIATION
LASERS
MEASURING METHODS
MIRRORS
MOLECULES
NITROGEN
NONMETALS
NUMERICAL DATA
POWER
PULSES
RADIATIONS
SHAPE
TRAVELLING WAVES