System and method that suppresses intensity fluctuations for free space high-speed optical communication
Abstract
A high-speed (Gbps), free space optical communication system is based on spectral encoding of radiation from a wide band light source, such as a laser. By using partially coherent laser beams in combination with a relatively slow photosensor, scintillations can be suppressed by orders of magnitude for distances of more than 10 km. To suppress the intensity fluctuations due to atmospheric turbulence, a source with partial transverse coherence in combination with slow response time photodetector is used. Information is encoded in the spectral domain of a wideband optical source by modulation of spectral amplitudes. A non-coherent light source with wide spectrum (an LED, for example) may be used for high-speed communication over short (less than about a mile) distances.
- Inventors:
-
- Los Alamos, NM
- Santa Fe, NM
- Kiev, UA
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1001790
- Patent Number(s):
- 7603038
- Application Number:
- 11/516,136
- Assignee:
- Los Alamos National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Berman, Gennady P, Bishop, Alan R, Nguyen, Dinh C, Chernobrod, Boris M, and Gorshkov, Vacheslav N. System and method that suppresses intensity fluctuations for free space high-speed optical communication. United States: N. p., 2009.
Web.
Berman, Gennady P, Bishop, Alan R, Nguyen, Dinh C, Chernobrod, Boris M, & Gorshkov, Vacheslav N. System and method that suppresses intensity fluctuations for free space high-speed optical communication. United States.
Berman, Gennady P, Bishop, Alan R, Nguyen, Dinh C, Chernobrod, Boris M, and Gorshkov, Vacheslav N. Tue .
"System and method that suppresses intensity fluctuations for free space high-speed optical communication". United States. https://www.osti.gov/servlets/purl/1001790.
@article{osti_1001790,
title = {System and method that suppresses intensity fluctuations for free space high-speed optical communication},
author = {Berman, Gennady P and Bishop, Alan R and Nguyen, Dinh C and Chernobrod, Boris M and Gorshkov, Vacheslav N},
abstractNote = {A high-speed (Gbps), free space optical communication system is based on spectral encoding of radiation from a wide band light source, such as a laser. By using partially coherent laser beams in combination with a relatively slow photosensor, scintillations can be suppressed by orders of magnitude for distances of more than 10 km. To suppress the intensity fluctuations due to atmospheric turbulence, a source with partial transverse coherence in combination with slow response time photodetector is used. Information is encoded in the spectral domain of a wideband optical source by modulation of spectral amplitudes. A non-coherent light source with wide spectrum (an LED, for example) may be used for high-speed communication over short (less than about a mile) distances.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {10}
}
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