Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards

Sho Yakabe, Takaaki Ishigure, Shigeru Nakagawa

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

4 Citations (Scopus)

Abstract

For further advancement of next-generation high-performance computers, low-power consumption, high-density, and low-cost optical interconnection technologies should be adopted, and thus, optical printed circuit boards (O-PCBs) integrating polymer optical waveguides would be a key device. In particular, for low-power consumption, the link power budget should be low enough. In the optical link that consists of two waveguides on PCBs and a graded-index (GI) multimode fiber (MMF) connecting the two PCBs, such a low power budget is expected when GI-core waveguides are utilized. Essentially low coupling loss between the GI-core waveguide and a GI-MMF is one of the reasons of the low power budget, since the mode power profile mismatch between MMFs and GI-core waveguides is smaller than that between MMFs and SI-core waveguides. In this paper, we compose an optical link of vertical cavity surface emitting laser (VCSEL)-waveguide: SI or GI-MMF-waveguide: SI or GI-PD, and quantitatively evaluate the coupling loss at each connection point. When all the components are perfectly aligned, the total coupling loss is 1.9 dB in the link with GI-core waveguide. On the other hand, the SI-core waveguide link shows 0.8 dB higher coupling loss (2.72dB) than the GI-core waveguide link. When a misalignment of ±10 ìm is added at each connection and 50-ìm gaps are added at both VCSEL-waveguide and waveguide-PD connections, the GI-waveguide link demonstrate approximately 2-dB advantage in the power budget over the SI-waveguide link. Given limited power budget consideration for high bit rate optical links (∼25 Gb/s), GI-core waveguide enabling low link power budget would be a promising component for O-PCBs..

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8267
DOIs
Publication statusPublished - 2012
EventOptoelectronic Interconnects XII - San Francisco, CA, United States
Duration: 2012 Jan 232012 Jan 25

Other

OtherOptoelectronic Interconnects XII
CountryUnited States
CitySan Francisco, CA
Period12/1/2312/1/25

Fingerprint

Polymer Waveguide
Printed Circuit Board
Optical Waveguides
printed circuits
circuit boards
Optical waveguides
optical waveguides
Printed circuit boards
budgets
Waveguide
Polymers
Waveguides
waveguides
polymers
Telecommunication links
International System of Units
Multimode fibers
Optical links
Multimode Fiber
Vertical-cavity Surface-emitting Laser (VCSEL)

Keywords

  • Optical interconnect
  • Polymer waveguides

ASJC Scopus subject areas

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

Cite this

Yakabe, S., Ishigure, T., & Nakagawa, S. (2012). Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8267). [82670J] https://doi.org/10.1117/12.907699

Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards. / Yakabe, Sho; Ishigure, Takaaki; Nakagawa, Shigeru.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8267 2012. 82670J.

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

Yakabe, S, Ishigure, T & Nakagawa, S 2012, Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8267, 82670J, Optoelectronic Interconnects XII, San Francisco, CA, United States, 12/1/23. https://doi.org/10.1117/12.907699
Yakabe S, Ishigure T, Nakagawa S. Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8267. 2012. 82670J https://doi.org/10.1117/12.907699
Yakabe, Sho ; Ishigure, Takaaki ; Nakagawa, Shigeru. / Link power budget advantage in GI-core polymer optical waveguide link for optical printed circuit boards. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8267 2012.
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