Accession Number : ADD011577

Title :   Injection Controlled Laser Transmitter with Twin Local Oscillators.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Chenausky,P P ; Green,W J , Jr

Report Date : 25 Feb 1985

Pagination or Media Count : 13

Abstract : A heterodyne carbon dioxide optical Doppler radar is described which comprises a ring type of transmitter laser and twin local oscillator lasers which are automatically controlled to operate at a difference frequency equal to the intermediate frequency of the radar, which may be in the VHF band. The output of one of the twin lasers is injected into the transmitter laser for stabilization purposes and the output of the other of the twin lasers is heterodyned with the received target return signals to form the radar's intermediate frequency signal.

Descriptors :   *PATENT APPLICATIONS, *RADAR SIGNALS, *INJECTION LASERS, HETERODYNING, RADAR SIGNALS, DOPPLER RADAR, LOCAL OSCILLATORS, VERY HIGH FREQUENCY

Subject Categories : Lasers and Masers
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE