1.
Appl Opt
; 36(6): 1130-4, 1997 Feb 20.
Article
in English
| MEDLINE
| ID: mdl-18250780
ABSTRACT
We have observed a sizable astigmatism in the output beam from a diode-pumped unstable resonator Nd:YVO(4) laser operating in a single polarization and a single-longitudinal and transverse mode. The anisotropic index of refraction of the vanadate crystal has been identified as the source of this astigmatism. A theoretical prediction of the eigenmode astigmatism based on this index anisotropy is consistent with our experimental measurements.