HETERODYNE DETECTION WITH TEA-CO2 HYBRID LASERS

Authors
  1. Cruickshank, J.M.
  2. Hale, M.M.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
The output characteristics of a TEA-CO2 hybrid laser were investigated in a laboratory experiment using heterodyne detection. The study was performed using the principles of a laser radar having, as transmitter, the hybrid configuration of a TEA double-discharge section and a standard low-pressure discharge section in a common optical resonator and, serving as local oscillator, a stabilized CW laser. The output pulse shape, the frequency characteristics of the transmitter and the detection of signals at low ratios of signal to noise were examined. Receiver sensitivity was improved by three orders of magnitude using heterodyne techniques in comparison to direct detection using the same amplifier bandwidth. The application of the TEA-CO2 hybrid laser in radar systems is briefly discussed.
Report Number
DREV-4049/76 —
Date of publication
15 Mar 1976
Number of Pages
18
DSTKIM No
76-04013
CANDIS No
92784
Format(s):
Hardcopy;Originator's fiche received by DSIS

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