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Franco Curti (Senior Researcher, PhD ISCOM) Tosi Beleffi Giorgio (PhD ISCOM)

Free Space Optics. Franco Curti (Senior Researcher, PhD ISCOM) Tosi Beleffi Giorgio (PhD ISCOM) Davide Forin (PhD student ISCOM - Università Tor Vergata) Natalia Corsi (Università Roma Tre) Antonio Teixeira (IT). http://www.e-photon-one.org.

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Franco Curti (Senior Researcher, PhD ISCOM) Tosi Beleffi Giorgio (PhD ISCOM)

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  1. Free Space Optics Franco Curti (Senior Researcher, PhD ISCOM) Tosi Beleffi Giorgio (PhD ISCOM) Davide Forin (PhD student ISCOM - Università Tor Vergata) Natalia Corsi (Università Roma Tre) Antonio Teixeira (IT) http://www.e-photon-one.org

  2. FSO is a good option in the Access Network to support high bandwidth services In the last hundred of meters (the secondary Access Network) FSO can substitute the cable. Atmospherical impact reduced. FSO Fully Transparent is a the only way to use the fiber bandwidth capacity. Low costs, no authorizations, no cable deployement Introduction http://www.e-photon-one.org

  3. Experimental Set-Up Receiver Mirror Transmitter http://www.e-photon-one.org

  4. The Field Trial Receiver Mirror Transmitter http://www.e-photon-one.org

  5. 2.5 Gbit/s measurements 10:45 am T=13°C U=45% 11:45 am T=13°C U=47% 15:00 pm T=17°C U=60% Ext Path Loss: 23 dB BER Pin [dBm] http://www.e-photon-one.org

  6. Increased distance: 15m more for a total of around 100m Improvement in the alignement with changements in the receiver transmitter mounts Total external path loss: around 21 dB 10 Gbit/s measurements http://www.e-photon-one.org

  7. 10 Gbit/s measurements 3:00 pm T=20 °C U=35% BER Pin [dBm] http://www.e-photon-one.org

  8. Something at 40 Gbit/s Received CHs after transmission In the courtyard Q Factor in the LAB Tests made on the Optical Lab Shorter distance around 1,5 m Horizontal transmission No wind, nothing http://www.e-photon-one.org

  9. New Test Bed Mirrors Tratta in aria non Soggetta a controllo termico Climatic Chamber 1 4m 1m input output Possibility to control: Rain Umidity Temperature Variations Fog Ultraviolet rays Climatic Chamber 2 Optical FIber http://www.e-photon-one.org

  10. Up to 10 Gbit/s seems to be no problem At 40 Gbit/s ringing problems probably due to multi-path interference induced by a non perfect alignement In the future: Set up a new testbed with Climatic Chambers availability Possibility to study extreme/sever conditions Rome is not a good place to find bad weather Conclusions http://www.e-photon-one.org

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