Frequency-shifted local oscillator produced by a rotating radial grating for a heterodyne detector

Imre Péczeli, Péter Richter, Ferenc Engard

Research output: Contribution to journalArticle

Abstract

A frequency-shifted local oscillator beam was produced by a rotating radial grating in an infrared heterodyne detector operating with a CO2 laser. Reduction in mixing efficiency due to beam distortion on diffraction from the radial grating was predicted and observed. The simplicity of the device makes it attractive in some applications of heterodyne detection, e.g. coherent lidars.

Original languageEnglish
Pages (from-to)463-468
Number of pages6
JournalOptica Acta
Volume32
Issue number4
DOIs
Publication statusPublished - Apr 1985

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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