• DocumentCode
    88770
  • Title

    BER Performance of Coherent Optical Communications Systems Employing Monolithic Tunable Lasers With Excess Phase Noise

  • Author

    Huynh, Tam N. ; Nguyen, An T. ; Wing-Chau Ng ; Lim Nguyen ; Rusch, Leslie A. ; Barry, Liam P.

  • Author_Institution
    Sch. of Electron. Eng., Dublin City Univ., Dublin, Ireland
  • Volume
    32
  • Issue
    10
  • fYear
    2014
  • fDate
    15-May-14
  • Firstpage
    1973
  • Lastpage
    1980
  • Abstract
    We analyze the bit error rate (BER) performance of optical coherent communication systems employing multi-section monolithic tunable lasers with large excess phase noise. The BER of the coherent system utilizing a second-order decision-directed digital phase-locked loop (DD-PLL) for phase tracking was computed numerically. Experimental results have also been demonstrated with a 16-quadratic-amplitude modulation coherent system deploying a sampled-grating distributed Bragg reflector laser at 16 Gbaud that confirms the performance of the second-order DD-PLL in tracking the excess phase noise.
  • Keywords
    Bragg gratings; digital phase locked loops; distributed Bragg reflector lasers; error statistics; laser noise; laser tuning; light coherence; numerical analysis; optical communication equipment; optical modulation; optical phase locked loops; optical tracking; phase noise; quadrature amplitude modulation; BER performance; bit error rate performance; excess phase noise; multisection monolithic tunable lasers; numerical computation; optical coherent communication systems; phase tracking; sampled-grating distributed Bragg reflector laser; second-order decision-directed digital phase-locked loop; sixteen-quadratic-amplitude modulation coherent system; Bit error rate; Frequency modulation; Laser modes; Laser noise; Mathematical model; Phase noise; Coherent communications; excess phase noise; sampled-grating distributed Bragg reflector (SG-DBR) laser; tunable laser phase noise;
  • fLanguage
    English
  • Journal_Title
    Lightwave Technology, Journal of
  • Publisher
    ieee
  • ISSN
    0733-8724
  • Type

    jour

  • DOI
    10.1109/JLT.2014.2319108
  • Filename
    6803872