Acousto-Optic Isolator (AOI).
Abstract
Coherent CO2 radars having amplification stages following a CO2 master oscillator exhibit spurious feedback which tends to pull the frequency of the signal. The acousto-optic isolator (AOI) concept has shown promise to correct the feedback problem. Under this program, a number of AOI devices have been constructed, tested, and compared. Using a master oscillator/power amplifier simulator, instability of the master oscillator has been determined to be a function of feedback level, the difference between feedback signal and oscillator frequencies, and averaging time. AOI devices are shown to enhance the stability of the master oscillator. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1973
- Accession Number
- AD0766749
Entities
People
- James M. Martin
- Vincent J. Corcoran
- William T. Smith
Organizations
- Martin Marietta