Millimeter-wave opto-electronic devices based on waveguide photodiodes

Kazutoshi Kato, Yoshifumi Muramoto

Research output: Contribution to journalArticlepeer-review


Recent developments in high-speed photodetectors show a trend toward high efficiency and high output voltage. The waveguide photodiode is a powerful tool for achieving both the objectives - it has a bandwidth of more than 100 GHz and an efficiency of 50%. The recently developed uni-traveling-carrier structure has boosted the output voltage of the waveguide photodiode up to 1.3V, which is high enough for directly operating a digital circuit. Another trend is toward reducing the receiver cost. As opto-electronics-integrated-circuit technology based on the waveguide photodiode becomes mature and its speed reaches the 40-GHz region, it will play an important role in constructing future high-speed systems at low cost.

Original languageEnglish
Pages (from-to)957-967
Number of pages11
JournalOptical and Quantum Electronics
Issue number11-12
Publication statusPublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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