High-Efficiency Waveguide InGaAs pin Photodiode with Bandwidth of over 40 GHz

Kazutoshi Kato, Susumu Hata, Atsuo Kozen, Jun Ichi Yoshida, Kenji Kawano

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


A waveguide pin photodiode structure was designed in consideration of both wide bandwidth and highly efficient coupling to the fiber. The device performed with a bandwidth higher than 40 GHz, and had high responsivity of 0.55 A/W (external quantum efficiency of 44%), showing superiority of bandwidth-efficiency product over the surface-illuminated photodiodes in the ultrahigh-frequency region.

Original languageEnglish
Pages (from-to)473-474
Number of pages2
JournalIEEE Photonics Technology Letters
Issue number5
Publication statusPublished - May 1991
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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