Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985stoc.iafcr....b&link_type=abstract
IAF, International Astronautical Congress, 36th, Stockholm, Sweden, Oct. 7-12, 1985. 10 p.
Astronomy and Astrophysics
Astronomy
Infrared Lasers, Interstellar Communication, Optical Communication, Optical Heterodyning, Project Seti, Feasibility Analysis, Infrared Spectrometers, Radio Signals, Signal Detection, Signal To Noise Ratios
Scientific paper
This paper analyzes the technical feasibility of interstellar communication at infrared frequencies, both in its own right and in comparison with communication at radio frequencies. The analysis considers both the practical and fundamental limits affecting communication over interstellar distances and concludes that for specified transmitter and receiver locations communications at infrared and radio frequencies can be equally effective. On this basis a search for extraterrestrial signals at infrared wavelengths is equally as valid as any planned microwave effort. Work is now in progress to adapt a 10 micron heterodyne spectrometer to search for CO2 laser signals from 200 nearby stars.
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