Silicon photonics based 1 × 2 wavelength selective switch using fold-back arrayed-waveguide gratings

Fumi Nakamura, Hideaki Asakura, Keijiro Suzuki, Ken Tanizawa, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima, Hiroyuki Tsuda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We report on a novel design of a wavelength selective switch (WSS) using silicon photonics technology. It comprises of 1 × 4 interleavers, arrayed-waveguide gratings (AWGs) connected to fold-back waveguides, and 1 × 2 optical Mach-Zehnder interferometer switches. In the proposed WSS, fold-back waveguides enable the AWGs to be used for both demulti-plexing and multiplexing. Therefore the WSS has less waveguide crossings than a conventional configuration. Moreover, a 20-channel, 200-GHz spacing, 1 × 2 fold-back type WSS was fabricated on 5 mm × 10 mm SOI chip using CMOS technology.

Original languageEnglish
Article number20180532
JournalIEICE Electronics Express
Volume15
Issue number14
DOIs
Publication statusPublished - 2018

Keywords

  • Arrayed waveguide grating
  • Optical communication
  • Optical switch
  • Silicon photonics
  • Waveguide crossing
  • Wavelength selective switch

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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