Negative-branch unstable-resonator copper-vapor laser.
Copper-vapor lasers (CVL's) with positive-branch unstable resonators have been used extensively for reducing output-beam divergence. In contrast, the negative-branch unstable resonator has not been applied to CVL's. Here we study the performance of a negative-branch unstable-resonator CVL with various magnifications. A divergence of approximately 3.25 times the diffraction limit was obtained.
Dixit
S K
SK
Centre for Advanced Technology, Rajendra, Nagar, Indore 452012, India.
Singh
B
B
Nakhe
S V
SV
Mittal
J K
JK
Bhatnagar
R
R