• DocumentCode
    1476852
  • Title

    42 GBd 3-bit power-DAC for optical communications with advanced modulation formats in InP DHBT

  • Author

    Konczykowska, Agnieszka ; Dupuy, Jean-Yves ; Jorge, Filipe ; Riet, M. ; Moulu, J. ; Nodjiadjim, V. ; Berdaguer, P. ; Godin, J.

  • Author_Institution
    III-V Lab., CEA, Marcoussis, France
  • Volume
    47
  • Issue
    6
  • fYear
    2011
  • Firstpage
    389
  • Lastpage
    390
  • Abstract
    A 3-bit power-DAC was designed and fabricated in 0.7 μm InP double-heterojunction bipolar transistor (DHBT) technology. An 8-level differential output signal with 3.6 Vpp amplitude was measured at symbol rates in the range of 40 GBd. The circuit combines DAC and driver functions allowing to directly drive a modulator without need for a linear amplifier. This compact IC solution is suitable for transmitters with advanced modulation formats like 64-QAM operating at high symbol rate.
  • Keywords
    digital-analogue conversion; driver circuits; heterojunction bipolar transistors; indium compounds; optical communication; optical modulation; 64-QAM; DHBT technology; InP; advanced modulation formats; compact IC solution; double-heterojunction bipolar transistor; driver functions; optical communications; power-DAC; size 0.7 mum; voltage 3.6 V; word length 3 bit;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2011.0154
  • Filename
    5735450
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1476852