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3. Transmission capacity by fiber type
Standard fiber, also known as NDSF (Non Dispersion Shifted Fiber ), has zero chromatic dispersion at 1,320 nm, which is equal to +18 ps · nm –1 · km –1 at 1,550 nm. The first cable to use optical amplification (TAT12/13) was equipped with a dispersion-shifted fiber called DSF (Dispersion Shifted Fiber ), which was characterized by near-zero chromatic dispersion at the single transmission wavelength (1,560 nm). However, in the case of WDM transmission, DSF is no longer appropriate, as the different wavelengths propagate at the same speed, generating a four-wave mixing effect that severely penalizes transmission quality. To remedy this problem, a new type of fiber called NZDSF (Non-Zero-Dispersion-Shifted Fiber ) has been introduced.
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Transmission capacity by fiber type
Submarine cable characteristics
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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