7. Submarine links without repeaters
Submarine links without repeaters offer the following advantages:
no high-voltage power supply in the terminal;
no risk of a repeater breaking down and requiring a cable ship to repair it;
the possibility of using cables containing up to 48 fiber pairs.
The aim is to be able to transmit the signal over the greatest possible distance without placing an active device (requiring a power supply) underwater.
For this purpose, the optical fiber used is pure silica core fiber (PSCF), which has the advantage of offering very low attenuation: typically 0.17 dB/km.
Secondly, there are various amplification techniques to increase the propagation distance. Three types of configuration are described in...
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Submarine links without repeaters
Conclusion
Bibliography
Conferences
Proceedings of SubOptic 2001, Kyoto, May 20-24, 2001
Proceedings of SubOptic 2004, Monaco, 29 mars-1 er avril 2004
Proceedings of SubOptic 2007, Baltimore, May 14-17, 2007
Proceedings of SubOptic 2010, Yokohama, May 11-14, 2010
Proceedings of SubOptic 2013, Paris, April 22-25, 2013...
Standards and norms
ITU (International Telecommunication Union) recommendations for fiber optic submarine cables :
- General features of optical fibre submarine cable systems - G971 -
- Definition of terms relevant to optical fiber submarine cable systems - G972 -
- Characteristics of repeaterless optical fiber submarine cable systems - G973 -
- Longitudinally compatible DWDM applications for repeaterless...
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