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Low-loss submarine optical fibre cable for repeaterless submarine transmission system employing remotely pumped EDF and distributed Raman amplification

Low-loss submarine optical fibre cable for repeaterless submarine transmission system employing remotely pumped EDF and distributed Raman amplification

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Published

A low-loss submarine optical fibre cable for a long-distance repeaterless submarine transmission system employing remote pumping is described. The features of this system are an increased signal power budget and the provision of cost-effective submarine transmission systems that are easy to maintain. The relationship between the signal and pump losses of optical fibre needed to achieve a repeaterless submarine transmission system operating at 2.5 Gbit/s over a distance exceeding 370 km were investigated. A submarine optical fibre cable based on the results was manufactured and confirmed to have low-loss and stable transmission characteristics for practical applications in submarine repeaterless transmission systems.

Inspec keywords: Raman lasers; optical pumping; optical fibre amplifiers; optical cables; optical fibre losses; submarine cables; erbium

Other keywords: cost-effective submarine transmission systems; 370 km; long-distance repeaterless submarine transmission; optical fibre pump losses; low-loss submarine optical fibre cable; erbium-doped fibre; signal power budget; stable transmission characteristics; remotely pumped EDF; distributed Raman amplification; 2.5 Gbit/s

Subjects: Fibre optics; Optical communication equipment; Submarine cable systems; Fibre lasers and amplifiers

References

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      • N. Ohkawa , T. Takahashi , Y. Miyajima , M. Aiki . Large capacity submarine repeaterless transmission system design employing remote pumping. IEICE Trans. Commun. , 3
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      • H. Kanamori . Transmission characteristics and reliability of pure silica core single mode fibers. J. Lightwave Technol. , 8 , 1144 - 1150
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      • Toge, K., Hogari, K., Horiguchi, T.: `Distribution measurement of Raman gain characteristics in fibers', 5.2.4, 28thEuropean Conf. on Optical Communication (ECOC 2002), 2002, Copenhagen, Denmark.
    4. 4)
      • Hansen, P.B.: `2.488-Gb/s unrepeatered transmission over 529 km using remotely pumped post- and pre-amplifiers, forward error correction, and dispersion compensation', PD.25, Optical Fiber Communication Conf. (OFC 95), 1995, San Diego, CA, USA.
    5. 5)
      • Hansen, P.B.: `Remote amplification in optical transmission system', IEEE LEOS 10th Annual Mtg, 1997, San Francisco, CA, USA, 1, p. 224–225.
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      • Takahashi, T., Murakami, M., Ohkawa, N.: `Performance prospects of long span, large capacity submarine repeaterless transmission systems', Global Telecommunications Conf. (GLOBECOM'96), 1996, London, United Kingdom, 2, p. 928–932.
    7. 7)
      • Bergano, N.S.: `Ultra long distance submarine DWDM systems', IEEE LEOS Summer Top. Mtgs, 2001, p. 2, ‘Advanced semiconductor lasers and applications/ultraviolet and blue lasers and their applications/ultralong haul DWDM transmission and networking/WDM components’.
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