COHERENT OPTICAL BEAM STEERING TECHNIQUES.
Abstract
The technical problems involved in achieving an electronically scanned coherent optical phased array are examined in detail. Background information pertinent to an array design, including studies of coherent optical components, optical losses, limitations imposed by propagation ef fects, and radiation patterns generated by laser elements is presented. Techniques to achieve both electronic steering of a single laser beam and a phased array of lasers are analyzed. Studies include consideration of the physical devices themselves, and analysis of their environmental sensitivity, radiation characteristics, and response speeds. Design investigation of the optical phased array includes analysis of the laser oscillator-amplifier combination, the electronically controlled optical phase shifters, the element beam steering devices, and the output telescope systems. Typical design data and performance specifications are presented. Finally, recommendations for further theoretical and experimental research are made. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0428203
Entities
People
- Frederic A. Jessen
- Leo W. Procopio
- Lewis J. Brown
- Peter M. Nave