Self-heterodyne mixing method of two inter-mode beat frequencies for frequency stabilization of a three-mode He-Ne laser

Jeongmin Lee, Tai Hyun Yoon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a robust self-heterodyne mixing method of two inter-mode beat frequencies suitable for frequency stabilization of a three longitudinal-mode (3-mode) He-Ne laser at 633 nm. A high-contrast frequency discrimination signal with a broad locking range of 244 MHz is obtained by using a self-heterodyned double balanced mixer operating at the inter-mode beat frequency of 607 MHz.We show that the central-mode frequency of the 3-mode He-Ne laser could be stabilized to the center of the gain profile with a frequency fluctuation less than ± 5MHz for more than 12 h.

Original languageEnglish
Article number022170
JournalAIP Advances
Volume2
Issue number2
DOIs
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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