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2.5 Gbit/s free space optical link over 4.4 km

2.5 Gbit/s free space optical link over 4.4 km

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A new record in terrestrial free space optical transmission, 2.5 Gbit/s (single channel) over a 4.4 km range is reported. Optical data are transmitted over a horizontal path through the atmosphere, error free, using a specially designed optical telescope-transceiver, a conventional 1550 nm laser transmitter, 2.5 Gbit/s receiver/regenerator and a high power optical amplifier.

References

    1. 1)
      • Carbonneau, T.H., Wisely, D.R.: `Opportunities and challenges for optical wireless; the competitive advantageof free-space telecommunications links in today's crowded marketplace', Wireless Technologies and Systems: Millimeter-Wave and Optical,Proc. SPIE, 1998, 3232, p. 119–128.
    2. 2)
      • Kim, I.I., Woodbridge, F., Chan, V., Strickland, B.R.: `Scintillation measurements performed during the limited-visibility lasercomexperiment', Free-Space Laser Communication Technologies X, Proc. SPIE, 1998, 3266, p. 209–220.
    3. 3)
      • Kim, I.I., Koontz, J., Hakakha, H., Adhikari, P., Stieger, R., Moursund, C., Barclay, M., Stanford, A., Ruigrok, R., Schuster, J., Korevaar, E.: `Measurement of scintillation and link margin for the Terra-link lasercommunications systems', Wireless Technologies and Systems: Millimeter and Optical, Proc.SPIE, 1998, 3232, p. 100–118.
    4. 4)
      • Szajowski, P.F., Nykolak, G., Auborn, J.J., Presby, H.M., Tourgee, G.E., Korevaar, E., Schuster, J., Kim, I.I.: `4 km free-space optical communication 1550 nm transmission link operatingat 2.5 Gbit/s - Experimental results', SPIE Photonics East, 1998.
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