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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 10, Iss. 1 — Jan. 1, 1971
  • pp: 136–140

CO2 Laser Signature Problem

P. C. Claspy and Yoh-Han Pao  »View Author Affiliations


Applied Optics, Vol. 10, Issue 1, pp. 136-140 (1971)
http://dx.doi.org/10.1364/AO.10.000136


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Abstract

A CO2 laser may oscillate at any one of many possible lines. As the cavity length of such a laser is varied over a distance of λ/2, a large number of lines oscillate one at a time in succession. The listing of the identities of the sequences of lines constitutes a signature of the laser and is a matter of practical importance in the operation of these lasers in remote controlled applications without the use of mode-selecting elements in the cavity of the laser. We report here a rather remarkable result, namely, that the lines P(20) and P(16) of the 10.4-μm band compete so effectively relative to all the other modes that they can be relied on to oscillate over quite a wide gain curve and for a wide range of operating conditions.

© 1971 Optical Society of America

History
Original Manuscript: June 12, 1970
Published: January 1, 1971

Citation
P. C. Claspy and Yoh-Han Pao, "CO2 Laser Signature Problem," Appl. Opt. 10, 136-140 (1971)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-10-1-136

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