A 53-Gbit/s/ch Active Optical Cable Utilizing GI Polymer Waveguide for High-density On-board Optical Interconnects

Naohiro Kohmu, Maho Ishii, Takaaki Ishigure

研究成果: Conference contribution

抜粋

In this paper, we propose a low loss and cost-effective assembly in optical transceiver for on-board applications by applying graded-index (GI) core polymer waveguides to effectively couple the signal light between light sources/photodetectors and multimode fibers (MMFs). In order to satisfy the requirements for higher bandwidth data transmission, on-board optical interconnects have been anticipated in datacenter networks. When applying active optical cables (AOCs) to the on-board interconnects, the assembly density between optical devices and fibers is an important issue. Hence, polymer optical waveguides with densely aligned cores are one of the promising candidates to be an interface between the active components and fibers. In this paper, GI circular core polymer optical waveguides are applied to the onboard wiring. We demonstrate the ability of GI core waveguide to achieve low-loss coupling with optical transceivers due to tightly confined optical field in the core. Furthermore, we propose to utilize the lens function of GI core in the transceiver assembly. We theoretically demonstrate that the GI core enables to improve the coupling efficiency by 0.6 dB as a cylindrical lens. Meanwhile, by just inserting a perpendicularly bent GI core waveguide between an optical transmitter and an MMF, we successfully transmit a 53.125-Gbit/s PAM4 optical signals experimentally.

元の言語English
ホスト出版物のタイトル2019 IEEE CPMT Symposium Japan, ICSJ 2019
出版者Institute of Electrical and Electronics Engineers Inc.
ページ31-34
ページ数4
ISBN(電子版)9781728109787
DOI
出版物ステータスPublished - 2019 11
イベント9th IEEE CPMT Symposium Japan, ICSJ 2019 - Kyoto, Japan
継続期間: 2019 11 182019 11 20

出版物シリーズ

名前2019 IEEE CPMT Symposium Japan, ICSJ 2019

Conference

Conference9th IEEE CPMT Symposium Japan, ICSJ 2019
Japan
Kyoto
期間19/11/1819/11/20

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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  • これを引用

    Kohmu, N., Ishii, M., & Ishigure, T. (2019). A 53-Gbit/s/ch Active Optical Cable Utilizing GI Polymer Waveguide for High-density On-board Optical Interconnects. : 2019 IEEE CPMT Symposium Japan, ICSJ 2019 (pp. 31-34). [8998717] (2019 IEEE CPMT Symposium Japan, ICSJ 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICSJ47124.2019.8998717