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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 18 — Jun. 20, 2003
  • pp: 3531–3537

Tuning a grating-controlled CO2 laser by means of a scanning slit

Uri P. Oppenheim  »View Author Affiliations


Applied Optics, Vol. 42, Issue 18, pp. 3531-3537 (2003)
http://dx.doi.org/10.1364/AO.42.003531


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Abstract

The use of diffraction gratings as tuning devices in laser resonators is well known and has been demonstrated abundantly for CO2 lasers. As the grating rotates, the lines of the infrared spectrum of the CO2 molecule reach threshold and oscillate one by one. Here it is shown that it is possible to obtain the same spectrum by moving an aperture inside the cavity perpendicularly to the laser axis while keeping the grating stationary. The conditions for obtaining a well-resolved spectrum are formulated for both the rotating grating and the moving aperture case.

© 2003 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3470) Lasers and laser optics : Lasers, carbon dioxide
(230.1950) Optical devices : Diffraction gratings
(300.3700) Spectroscopy : Linewidth

History
Original Manuscript: September 17, 2002
Revised Manuscript: December 18, 2002
Published: June 20, 2003

Citation
Uri P. Oppenheim, "Tuning a grating-controlled CO2 laser by means of a scanning slit," Appl. Opt. 42, 3531-3537 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-18-3531

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