Vertical‐to‐surface transmission electrophotonic device and its application to optical interconnection

Yutaka Yamanaka, Takahiro Numai, Kazuhiro Yoshihara, Hideo Kosaka, Kaori Kurihara, Mitsunori Sugimoto, Kenichi Kasahara, Ichiro Ogura, Keiichi Kubota

Research output: Contribution to journalArticlepeer-review


In optical interconnection, the cascade optical interconnection using two‐dimensional optical switch devices is an important basic structure. To realize such an optical interconnection, the vertical‐to‐surface transmission electrophotonic device (VSTEP), which has a planar structure easy for two‐dimensional integration and is capable of light emission, light detection, and latching, has been developed. Utilizing the optimized combination of a pnpn thyristor structure, double heterojunction structure and vertical cavity structure, efficient laser mode emission and switching characteristics were obtained. In the optical interconnection using the differential structure, optical switching was achieved with optical energy as low as 150 fJ. An operating speed of 25 MHz was confirmed in the continuous mode. In addition, using the cascade characteristic in the device‐to‐device interconnection, the shift‐register operation was carried out using the optical interconnection between four optical array switches.

Original languageEnglish
Pages (from-to)20-31
Number of pages12
JournalElectronics and Communications in Japan (Part II: Electronics)
Issue number11
Publication statusPublished - 1992 Jan 1


  • Optical switching devices
  • optical interconnection
  • surface‐emitting laser

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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