Planar polymer and glass graded index waveguides for data center applications

Richard Pitwon, Akira Yamauchi, Lars Brusberg, Kai Wang, Takaaki Ishigure, Henning Schröder, Marcel Neitz, Alex Worrall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


Embedded optical waveguide technology for optical printed circuit boards (OPCBs) has advanced considerably over the past decade both in terms of materials and achievable waveguide structures. Two distinct classes of planar graded index multimode waveguide have recently emerged based on polymer and glass materials. We report on the suitability of graded index polymer waveguides, fabricated using the Mosquito method, and graded index glass waveguides, fabricated using ion diffusion on thin glass foils, for deployment within future data center environments as part of an optically disaggregated architecture. To this end, we first characterize the wavelength dependent performance of different waveguide types to assess their suitability with respect to two dominant emerging multimode transceiver classes based on directly modulated 850 nm VCSELs and 1310 silicon photonics devices. Furthermore we connect the different waveguide types into an optically disaggregated data storage system and characterize their performance with respect to different common high speed data protocols used at the intra and inter rack level including 10 Gb Ethernet and Serial Attached SCSI.

Original languageEnglish
Title of host publicationOptical Interconnects XVI
ISBN (Electronic)9781628419887
Publication statusPublished - 2016
EventOptical Interconnects XVI - San Francisco, United States
Duration: 2016 Feb 152016 Feb 17


OtherOptical Interconnects XVI
Country/TerritoryUnited States
CitySan Francisco


  • Graded index waveguides
  • Optical PCB (OPCB)
  • Planar glass waveguides
  • Polymer waveguide

ASJC Scopus subject areas

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


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