A 1.5 Gbit/s GaAs Four-Channel Selector LSI with Monolithically Integrated Newly Structured GaAs Ohmic Contact MSM Photodetector and Laser Driver

Naoaki Yamanaka, Tohru Takada

Research output: Contribution to journalArticle

6 Citations (Scopus)


A monolithic integrated 1.5 Gbit/s high-speed four-channel OEIC selector GaAs LSI has been fabricated. This LSI incorporates photodetectors, preamplifiers, a selector, a decision circuit, and a high-speed laser driver. To achieve high efficiency, a AuGe/Ni-GaAs structured ohmic contact metal-semiconductor-metal (OC-MSM) is used for the interdigitated structural photodetector. With this OC-MSM structure, photocurrent is approximately twice as effective as with the conventional Schottky contact MSM structure. The new LSI has a maximum operating speed of 1.5 Gbit/s and exhibits low power dissipation of 927 mW.

Original languageEnglish
Pages (from-to)310-312
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number10
Publication statusPublished - 1989 Oct
Externally publishedYes


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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