Title :
Infra-red homodyne receiver with acousto-optically controlled local oscillator
Author :
Scholtz, Arpad L. ; Leeb, W.R. ; Philipp, H.K. ; Bonek, Ernst
Author_Institution :
Technische Universitÿt Wien, Institut fÿr Nachrichtentechnik, Wien, Austria
Abstract :
A homodyne receiver for 10 ¿m radiation has been built, based on the phase-locked-loop principle. Fast frequency control of the local CO2 laser is achieved by an acoustooptic frequency shifter. Demodulation of a 100 Mbit/s phase-modulated input signal has been demonstrated.
Keywords :
acousto-optical devices; infrared detectors; optical communication equipment; optical modulation; 10 micron radiation; 100 Mbit/s phase-modulated input signal; IR homodyne receiver; acoustooptic frequency shifter; acoustooptically controlled local oscillator; fast frequency control; local CO2 laser; optical voltage controlled oscillator; phase-locked-loop principle;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830161
