• DocumentCode
    1316074
  • Title

    4-ary FSK coherent optical communication system

  • Author

    Alexander, S.B. ; Barry, R. ; Castagnozzi, D.M. ; Chan, V.W.S. ; Hodsdon, D.M. ; Jeromin, L.L. ; Kaufmann, J.E. ; Materna, D.M. ; Parr, R.J. ; Stevens, M.L. ; White, D.W.

  • Author_Institution
    MIT Lincoln Lab., Lexington, MA, USA
  • Volume
    26
  • Issue
    17
  • fYear
    1990
  • Firstpage
    1346
  • Lastpage
    1348
  • Abstract
    Experimental verification of the sensitivity advantage of M-ary orthogonal signalling over binary signalling is reported. A 110 Mbits 4-ary FSK system using conventional Fabry-Perot lasers with a 7% IF linewidth to data-rate ratio has achieved a sensitivity of 37 detected photons per bit at a 10-9 bit error rate. This exceeds the performance possible using ideal binary orthogonal FSK with zero linewidth lasers.
  • Keywords
    frequency shift keying; optical communication equipment; optical modulation; sensitivity; 110 Mbit/s; 4-ary FSK system; Fabry-Perot lasers; IF linewidth to data-rate ratio; M-ary orthogonal signalling; bit error rate; coherent optical communication system; sensitivity advantage;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19900867
  • Filename
    82976
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1316074