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Sub 10 ps carrier response times in electroabsorption modulators using quantum well offsetting

Research output: Contribution to journalJournal article

Published

  • Chris L. M. Daunt
  • Ciaran S. Cleary
  • Robert J. Manning
  • Kevin Thomas
  • Robert J. Young
  • Emanuele Pelucchi
  • Brian Corbett
  • Frank H. Peters
Journal publication date11/2012
JournalIeee journal of quantum electronics
Journal number11
Volume48
Number of pages9
Pages1467-1475
Original languageEnglish

Abstract

Sub 10 ps photocarrier response time in an electroabsoption modulator using a custom epitaxy structure is demonstrated. This design used quantum well offsetting, carbon doping, and valence band discontinuity minimization, to achieve a 3.5 ps response time, when biased at -4.5 V. The quantum well offsetting also allows bandwidth optimization for a specific extinction ratio.