Advertisement

Optical and Quantum Electronics

, Volume 13, Issue 4, pp 309–322 | Cite as

A simple timing circuit for optical PCM repeaters

  • A. Luvison
  • G. Pirani
  • U. Mengali
Papers
  • 41 Downloads

Abstract

A simple synchronization system is proposed for timing recovery in optical PCM repeaters. The basic idea is to exploit the spectral line at the transmission rate, which is already present in the unipolar symbol stream travelling along the fibre. Since a nonlinear circuit is no longer needed, the amplified signal at the photodetector output is directly filtered by a resonant circuit to give the clock recovery by means of a zero-crossing detector. The limits of effectiveness of this synchronization system are then discussed, especially with regard to the accumulation of timing jitter as well as of alignment error.

Keywords

Communication Network Spectral Line Timing Recovery Transmission Rate Alignment Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    W. R. Bennett,Bell Syst. Tech. J. 37 (1958) 1501–42.Google Scholar
  2. 2.
    H. E. Rowe,ibid 37 (1958) 1543–98.Google Scholar
  3. 3.
    C. J. Byrne, B. J. Karafin andD. B. Robinson,ibid 42 (1963) 2679–714.Google Scholar
  4. 4.
    L. E. Zegers,IEEE Trans. COM-15 (1967) 542–51.Google Scholar
  5. 5.
    J. M. Manley,Bell Syst. Tech. J. 48 (1969) 541–613.Google Scholar
  6. 6.
    L. Bellato andG. L. Cariolaro,Alta Freq. 41 (1972) 800–15.Google Scholar
  7. 7.
    L. E. Franks andJ. P. Bubrouski,IEEE Trans. COM-22 (1974) 913–20.Google Scholar
  8. 8.
    G. L. Cariolaro andF. Todero,ibid COM-25 (1977) 417–26.Google Scholar
  9. 9.
    G. L. Cariolaro andF. C. Vagliani,Proc. Allerton Conf., Monticello, Illinois (1977).Google Scholar
  10. 10.
    D. Munoz-Rodriguez andK. W. Cattermole,IEE J. ECS 3 (1979) 109–15.Google Scholar
  11. 11.
    B. R. Saltzberg,Bell Syst. Tech. J. 46 (1967) 593–622.Google Scholar
  12. 12.
    E. Roza,IEEE Trans. COM-22 (1974) 1236–49.Google Scholar
  13. 13.
    D. L Duttweiler,Bell Syst. Tech. J. 55 (1976) 37–58.Google Scholar
  14. 14.
    U. Mengali,Opt. Quant. Elect. 9 (1977) 383–91.Google Scholar
  15. 15.
    U. Mengali andE. Pezzani,IEEE Trans. COM-26 (1978) 1811–8.Google Scholar
  16. 16.
    U. Mengali andG. Pirani,Proc. NTC '79, Washington, DC (1979).Google Scholar
  17. 17.
    Idem, Elect. Lett. 15 (1979) 561–2.Google Scholar
  18. 18.
    T. Ozeki andT. Ito,IEEE J. QE-9 (1973) 388–91.Google Scholar
  19. 19.
    P. R. Selway, A. R. Goodwin andP. A. Kirby,Second Europ. Conf. on Opt. Fibre Commun., Paris (1976) pp. 202–7.Google Scholar
  20. 20.
    S. D. Personick,Bell Syst. Tech. J. 52 (1973) 843–74.Google Scholar
  21. 21.
    D. L. Snyder, ‘Random Point Processes’, (John Wiley, New York, 1975).Google Scholar
  22. 22.
    A. V. Oppenheim andR. W. Schafer, ‘Digital Signal Processing’, (Prentice-Hall, Englewood Cliffs, 1975).Google Scholar
  23. 23.
    T. Shimamura andI. Eguchi,IEEE Trans. COM-25 (1977) 1027–32.Google Scholar
  24. 24.
    G. Cocito, B. Costa, S. Longoni, L. Michetti, S. Silvestri, D. Tibone andF. Tosco,IEEE Trans. COM-26 (1978) 1028–36.Google Scholar
  25. 25.
    A. Fausone andL. Sacchi,Conf. Rec. 4th ECOC, Genova, Italy (1978) pp. 564–73.Google Scholar
  26. 26.
    A. Luvison andL. Sacchi,Proc. Int. Symp. on Circuits and Systems, Tokyo, Japan (1979) pp. 515–8.Google Scholar

Copyright information

© Chapman and Hall 1981

Authors and Affiliations

  • A. Luvison
    • 1
  • G. Pirani
    • 1
  • U. Mengali
    • 2
  1. 1.CSELTTorinoItaly
  2. 2.Department of Electrical EngineeringUniversity of PisaPisaItaly

Personalised recommendations