MODE PROPERTIES OF UNSTABLE OFF-AXIS RESONATORS WITH LARGE FRESNEL NUMBERS

Authors
EHRLICHMANN D
Citation
D. Ehrlichmann, MODE PROPERTIES OF UNSTABLE OFF-AXIS RESONATORS WITH LARGE FRESNEL NUMBERS, Optics communications, 119(1-2), 1995, pp. 236-245
Citations number
33
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
119
Issue
1-2
Year of publication
1995
Pages
236 - 245
Database
ISI
SICI code
0030-4018(1995)119:1-2<236:MPOUOR>2.0.ZU;2-9
Abstract
Off-axis unstable resonators play an important role for high-power dif fusion-cooled CO2-lasers with slab geometry. Mode properties of these unstable resonators are investigated by means of direct iterative diff raction calculations. The method of resonance excitation that has form erly been applied to stable resonators is used to obtain a set of low order modes. Far-field properties and beam quality of these modes are discussed and compared with experimental results.