To view PDF files

You need Adobe Reader 7.0 or later in order to read PDF files on this site.
If Adobe Reader is not installed on your computer, click the button below and go to the download site.

August 2022 Vol. 20 No. 8


View from the Top

  • Akira Shimada, President and Chief Executive Officer, NTT

Front-line Researchers

  • Mitsuaki Akiyama, Senior Distinguished Researcher, NTT Social Informatics Laboratories

Rising Researchers

  • Hiroshi Yamazaki, Distinguished Researcher, NTT Device Technology Laboratories

Feature Articles: Device Technologies for Enabling the All-Photonics Network

  • High-output Optical Transmitter and High-sensitivity Optical Receiver for 400-Gbit/s 40-km Fiber-amplifier-less Transmission
  • C+L-band Colorless, Directionless, Contentionless Reconfigurable Optical Add/Drop Multiplexing for High-capacity Network Flexibility
  • Development of Membrane Optical Modulators for IOWN
  • Observation of Exceptional Point Degeneracy with Current-injected Photonic Crystal Lasers

Feature Articles: Optical Device Technologies for Next-generation Computing Using Light

  • Optical Device Technology for Next-generation Computing Using Light
  • Broadband Continuous-wave Optical Quadrature Squeezer for Ultra-fast Optical Quantum Computers
  • Optical Circuit Technologies for Next-generation Computing Using Light
  • Photonic Implementation of Reservoir Computing

Regular Articles

  • Business Design Support Technology to Promote Digital Transformation

Global Standardization Activities

  • Report on WTSA-20 (World Telecommunication Standardization Assembly)

Practical Field Information about Telecommunication Technologies

  • Development of the Hikari Denwa Fault-isolation Tool for Voice Over IP Services

External Awards/Papers Published in Technical Journals and Conference Proceedings