Detection of Temporally Coherent Light at Low Signal Levels.
Abstract
The objective of this study program has been to study methods of detection of coherent or partially coherent optical radiation in a noncoherent background. This study is primarily intended for application at low light levels and low ratios of coherent to noncoherent (i.e., signal/noise) light. This study has application for identifying/locating a source of partially coherent light (e.g., laser) in daylight or in the presence of thermal background radiation. Essentially this measurement method is based upon measurements of temporal coherence of received light. The background light is almost totally noncoherent. Laser radiation is partially coherent, and can, in certain cases approach total coherence. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA039818
Entities
People
- W. B. Ribbens
Organizations
- University of Michigan