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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 17 — Sep. 1, 1989
  • pp: 3725–3736

Spatial variation of gain and saturation in a fast axial flow CO2 laser amplifier

Nobuaki Takahashi, Eiichi Tsuchida, and Heihachi Sato  »View Author Affiliations


Applied Optics, Vol. 28, Issue 17, pp. 3725-3736 (1989)
http://dx.doi.org/10.1364/AO.28.003725


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Abstract

The spatial variation of gain and saturation is analyzed in weakly and heavily saturated cases for a fast axial flow (FAF) CO2 laser amplifier with laser gas in laminar and turbulent flow regions. Expressiong the laser parameters by fourth-order even functions of the radial distance, the development of the amplified radiation is predicted and compared successfully to the experimental results for the 10P(18) line. The distinctive feature of a FAF system is enhancement of the gain and saturation irradiance as well as the mode volume. The condition of spatial soliton is also discussed in a heavily saturated case.

© 1989 Optical Society of America

History
Original Manuscript: March 6, 1989
Published: September 1, 1989

Citation
Nobuaki Takahashi, Eiichi Tsuchida, and Heihachi Sato, "Spatial variation of gain and saturation in a fast axial flow CO2 laser amplifier," Appl. Opt. 28, 3725-3736 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-17-3725

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