Towards 10-40 GHz on-chip micro-optical links with all integrated Si Av LED optical sources, Si N based waveguides and Si-Ge detector technology

Kingsley A. Ogudo, Lukas W. Snyman, Jean Luc Poulleux, Carlos Viana, Zerihun Tegegne, Diethelm Schmieder

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

Micron dimensioned on-chip optical links of 50 micron length, utilizing 650 - 850 nm propagation wavelength, have been realized in a Si Ge bipolar process. Key design strategies is the utilization of high speed avalanche based Si light emitting devices (Si Av LEds) in combination with silicon nitride based wave guides and high speeds Si Ge based optical detectors. The optical source, waveguide and detector were all integrated on the same chip. TEOS densification strategies and state of the art Si-Ge bipolar technology were further used as key design strategies. Best performances show up to 25 GHz RF carrier modulation and - 40dBm total optical link budget loss with a power consumption of only 0.1 mW per GHz bandwidth. Improvement possibilities still exist. The process used is in regular production. The technology is particularly suitable for application as optical interconnects utilizing low loss, side surface, waveguide to optical fibre coupling.

Original languageEnglish
Title of host publicationOptical Interconnects XIV
PublisherSPIE
ISBN (Print)9780819499042
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventOptical Interconnects XIV - San Francisco, CA, United States
Duration: 3 Feb 20145 Feb 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8991
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Interconnects XIV
Country/TerritoryUnited States
CitySan Francisco, CA
Period3/02/145/02/14

Keywords

  • CMOS integrated circuitry
  • Electroluminescence
  • Light emitting diodes
  • Optical communication
  • Silicon
  • Wave guiding

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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