Abstract

The factors are discussed which determine the range of an optical communication system, such as: atmospheric transmission; source area, flux, brightness, modulation, and audio pass band; transmitter and receiver focal lengths, areas, and beam widths; and detector cell noise and ±14 area. Detector cell signal-to-noise ratio varies inversely as the square root of cell area in the ideal case. For non-image-forming systems, the Abbé sine condition is replaced by a useful rule of constancy of area times solid angle. A wide-angle system is a short-range system.

A general equation is given relating the range to these factors; it leads to a simple nomograph for estimating performance of a system. From laboratory measurements on components, the field range of a system may be predicted to an accuracy of ±14 mile if the atmospheric transmission is known.

© 1948 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Survey of Near Infra-Red Communication Systems

W. S. Huxford and John R. Platt
J. Opt. Soc. Am. 38(3) 253-268 (1948)

Heterodyne receivers for atmospheric optical communications

James H. Churnside and Charles M. Mclntyre
Appl. Opt. 19(4) 582-590 (1980)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (17)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription