Short Pulse Laser Modulation Techniques.
Abstract
Analytical and experimental results are reported on the desirability of short pulse, direct detection visible and near-IR laser communication systems. Data regimes from 10 to the 6th power to 10 to the 9th power bits/sec were investigated for four laser formats - two binary formats and two M-ary formats. Comparisons with other formats including analog and CW systems are included. Experimental results verified analytical results, demonstrating background discrimination capability of short pulse techniques and the capability to efficiently convey information. In the M-ary experiments as many as 12 bits/pulse were transmitted using 4095 digitally selected one nanosecond time slots. High quality TV pictures were transmitted at average detected signal to background ratios less than 0.01. 200 Mbps binary experiments were also conducted. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0872051
Entities
People
- Gary M. Lee
- Jerome P. Brand
- Monte Ross
Organizations
- McDonnell Douglas