Comparison of models of CO2-laser impedance fluctuations

A.L.S. Smith, S. Moffatt

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

There is a large opto-galvanic effect (OGE) in CO2-N2-He laser mixtures and this is exploited in laser frequency and power stabilisation systems. Two substantially different theories have been advanced to explain the effect. The two models are compared and it is concluded that the multi-step ionisation model is not adequate to describe the OGE in CO2 lasers, but the temperature perturbation or discharge cooling model describes the phenomenon with considerable precision.
LanguageEnglish
Pages71-78
Number of pages7
JournalJournal of Physics D: Applied Physics
Volume17
Issue number1
DOIs
Publication statusPublished - 1984

Fingerprint

impedance
Lasers
lasers
Ionization
Stabilization
stabilization
Cooling
cooling
ionization
perturbation
Temperature
temperature

Keywords

  • CO2-laser impedance fluctuations
  • opto-galvanic effect

Cite this

Smith, A.L.S. ; Moffatt, S. / Comparison of models of CO2-laser impedance fluctuations. In: Journal of Physics D: Applied Physics. 1984 ; Vol. 17, No. 1. pp. 71-78.
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Comparison of models of CO2-laser impedance fluctuations. / Smith, A.L.S.; Moffatt, S.

In: Journal of Physics D: Applied Physics, Vol. 17, No. 1, 1984, p. 71-78.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comparison of models of CO2-laser impedance fluctuations

AU - Smith, A.L.S.

AU - Moffatt, S.

PY - 1984

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AB - There is a large opto-galvanic effect (OGE) in CO2-N2-He laser mixtures and this is exploited in laser frequency and power stabilisation systems. Two substantially different theories have been advanced to explain the effect. The two models are compared and it is concluded that the multi-step ionisation model is not adequate to describe the OGE in CO2 lasers, but the temperature perturbation or discharge cooling model describes the phenomenon with considerable precision.

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KW - opto-galvanic effect

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