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Proceedings Paper

Unstable resonator with semitransparent output coupler for transverse-flow CO2 laser
Author(s): Pavel Anatolievich Mikheyev; Valeri D. Nikolaev; Alexander Anatolievich Shepelenko
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Paper Abstract

An unstable resonator with semitransparent output coupler (NRPOZ) and low magnification is investigated theoretically and experimentally for Fresnel numbers 5 - 15 and small signal gain 0.5 - 2.4. With the help of numerical simulation the condition of minimum diffraction losses is found. The beam divergence in the dc-discharge transverse-flow kilowatt-power CO2 laser was approximately two times less in comparison with telescopic unstable resonator without substantial loss of mode volume and output power.

Paper Details

Date Published: 10 December 1992
PDF: 7 pages
Proc. SPIE 1752, Current Developments in Optical Design and Optical Engineering II, (10 December 1992); doi: 10.1117/12.130740
Show Author Affiliations
Pavel Anatolievich Mikheyev, P.N. Lebedev Physical Institute (Russia)
Valeri D. Nikolaev, P.N. Lebedev Physical Institute (Russia)
Alexander Anatolievich Shepelenko, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 1752:
Current Developments in Optical Design and Optical Engineering II
Robert E. Fischer; Warren J. Smith, Editor(s)

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