INCREASING THE CAPACITY OF FIBER-OPTICAL TRANSMISSION SYSTEMS DUE TO DECREASING DISTANCES BETWEEN BEARING

Augustin Vyukusenge,
University of Bujumbura, Bujumbura, Burundi, vyukusengeaugustin@yahoo.fr

DOI: 10.36724/2664-066X-2020-6-6-21-23

SYNCHROINFO JOURNAL. Volume 6, Number 6 (2020). P. 21-23.

Abstract

The load on transport networks based on fiber-optic transmission systems is increasing at an accelerating rate. This paper discusses the possibility and limitations of increasing the throughput of fiber-optic transmission systems by reducing the distance between carriers. A comparison is made between fixed and flexible grids in terms of the spectral bandwidth efficiency. It is concluded that the use of flexible mesh technology is promising when switching to channel speeds above 100 Gbit / s.

Keywords: Bandwidth, fixed mesh, flexible mesh, number of channels, spectral efficiency, fiber optic transmission system.

References

  1. E. Desurvire, C. KazmierskiScience and technology challenges in XXIst century optical communications. C. R. Physique 12. 2011. P. 387-416.
  2. ITU-T Recommendation G.694.1: Spectral grids for WDM applications: DWDM wavelength grid.
  3. E. Connollyet al. Cross-Channel Interference Due to Wavelength Drift of Tunable Lasers in DWDM Networks. IEEE Photonics Technology Letters, vol. 19, no. 8, April 15, 2007.
  4. F. Lehmann, P. Ramantanis and Y. Frignac“Joint Channel Estimation, Interference Mitigation, and Decoding for WDM Coherent Optical Communications,” IEEE/OSA Journal of Optical Communications and Networking. Vol. 6. No. 3,
    pp. 315-325, 2014.
  5. V.G. Fokin, R.Z. Ibragimov. Optical systems with terabit and petabit transmission rates. tutorial; Siberian State University of Telecommunications and Informatics; department Multichannel telecommunication and optical systems. Novosibirsk, 2016.162 p.
  6. A.V. Leonov, O.E. Naniy, M.A. Sleptsov, V.N. Treshchikov. Trends in the development of long-distance optical systems. Applied Photonics. Vol. 3. No.2 (2016).
  7. N.N. Slepov. About modern technology WDM and not only. Foton-Express. 2007. No. 1. P. 8-16.