Research on Problems Related to Laser Communication through Water
Abstract
Several of the more intense emission lines from the argon ion laser fall within the blue-green 'transmission window' of sea water. Although relatively modest cw power and efficiency are obtained from argon ion lasers of practical laboratory size, the medium itself has an unusually high gain- bandwidth product when compared to other known gas laser systems. Consequently, it is possible in principle to obtain relatively high peak power pulses at high repetition frequencies from cw argon ion lasers operated in a synchronized cavity-dumped, mode-locked manner. Because such pulse chains might have practical applicability in the area of uncerwater communication, it seemed appropriate to investigate a number of basic physical problems associated with the production of such mode-locked laser pulse chains and with their applicability in time-interval measurement. A number of new techniques have been developed and new physical observations have been made during the course of this research: A technique based on the two-quantum photoeffect was devised and used to study second-order intensity correlations, pulse shapes and time delays in the picosecond time domain.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 07, 1978
- Accession Number
- ADA062443
Entities
People
- D. B. Carlin Jr.
- W. R. Bennett
Organizations
- Yale University