Incoherent-to-Coherent Image Converter.
Abstract
The object of this program was to develop, construct and deliver to the Air Force a device for real-time conversion of incoherent images to coherent images. This device (the I/C Image Converter) consists of a photocathode on which the incoherent image is focused, and an accelerating structure to carry the photoelectrons to the surface of an electro-optical crystal on which a charge pattern reproducing the original image is formed. This charge pattern in turn produces a spatially-modulated field in the crystal. A laser beam propagating through the crystal is then spatially modulated over its cross section by the electric-field-induced crystal birefringence. The coherent image information carried by the spatially modulated laser beam can then be used for coherent optical processing. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1971
- Accession Number
- AD0887269
Entities
People
- Ojars J. Ziemelis
Organizations
- Sylvania Electric Products