Free-space, laser-based data transmission: satellite communication as a technology driver for the development of fast, reliable terrestrial data networks

Martin Gerken; Georg Luichtel

doi:10.1117/12.782603

24 March 2008 Free-space, laser-based data transmission: satellite communication as a technology driver for the development of fast, reliable terrestrial data networks

Martin Gerken, Georg Luichtel

Author Affiliations +

Proceedings Volume 6975, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications IV; 697508 (2008) https://doi.org/10.1117/12.782603
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

High-resolution digital images with high refresh rates cause an enormous amount of data that must be forwarded from the source to the recipient. This is where wireless transmission as an RF technology quickly reaches its limits. With its high bandwidth, laser-based data transmission avoids this problem. An added benefit is a higher level of security against eavesdropping that can be further increased through the use of quantum optical encryption techniques. For military applications, several scenarios will be considered. Especially for the navy, communication between a ship and land for remote forces using free space air at the eye-safe laser wavelength of 1550 nm is necessary. Data transfer at this wavelength between ships is also important for an exchange of tactical images of the local situation. In the future, the direct communication between a ship and a submarine through water will be required. Bug-proof and broad bandwidth transmission of reconnaissance data will be necessary over distances of approx. several 100 m at the laser wavelength of 532 nm. This paper will show how experiences gained through the development of optical data links from satellites to ground stations can be used as an enabling technology for additional applications for the development of stable data connections under atmospheric conditions.

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Martin Gerken and Georg Luichtel "Free-space, laser-based data transmission: satellite communication as a technology driver for the development of fast, reliable terrestrial data networks", Proc. SPIE 6975, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications IV, 697508 (24 March 2008); https://doi.org/10.1117/12.782603

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