Abstract
The use of ultrashort (femtosecond duration) light pulses for line-of-sight free-space optical (FSO) communication through fog is receiving increasing attention. Assuming that the transmitter power is low enough to preclude nonlinear interactions, and that scattering-induced multipath spread is less than the reciprocal of the scattering-induced Doppler spread, it is shown that the average transmitter-to-receiver fractional energy transfer of an ultrafast FSO system cannot exceed that of a quasimonochromatic (nanosecond pulse duration) system operating at the optimum wavelength within the ultrafast system’s spectrum. Thus, an ultrashort-pulse system is not a solution for high-data-rate FSO communication through fog, because, at best, it will reproduce on average the energy-transfer performance of a wavelength-optimized quasimonochromatic system.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
G. C. Mooradian, M. Geller, L. B. Stotts, D. H. Stephens, and R. A. Krautwald
Appl. Opt. 18(4) 429-441 (1979)
Xiangwei Zeng, Jinkui Chu, Wenda Cao, Weidong Kang, and Ran Zhang
Appl. Opt. 57(23) 6817-6822 (2018)
N. C. Bruce, F. E. W. Schmidt, J. C. Dainty, N. P. Barry, S. C. W. Hyde, and P. M. W. French
Appl. Opt. 34(25) 5823-5828 (1995)