High-frequency optogalvanic signals and co2-laser stabilization

S. Moffatt, A.L.S. Smith

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The normal optogalvanic effect used in the stabilisation of CO2 lasers decreases in amplitude with increase in frequency and disappears at 2-3 kHz. We show that there is also a high frequency optogalvanic effect in CO2-N2-He-Xe laser gas mixtures up to 100 kHz, explain its origin and use it to frequency stabilise a laser with long term (hours) frequency drift of < 50 kHz and frequency re-settability of < 100 kHz.
Original languageEnglish
Pages (from-to)119-122
Number of pages3
JournalOptics Communications
Issue number2
Publication statusPublished - 15 Apr 1981


  • optogalvanic signals
  • co2-laser stabilization


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