Highly efficient 40 GHz waveguide InGaAs p-i-n photodiode employing multimode waveguide structure

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

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The efficiency of waveguide InP/InGaAsP(λg =1.3 μm)/InGaAs/InGaAsP(λg = 1.3 μm)/InP p-i-n photodiode is calculated using the step-segment method and overlap-integral between the optical field of a fiber and that of the photodiode. Remarkably high coupling efficiency to a fiber can be obtained by using a multimode waveguide structure. The fabricated device has an external quantum efficiency of 68% as well as a 3 dB bandwidth of higher than 40 GHz at a 1.55 μm wavelength.

Original languageEnglish
Pages (from-to)820-822
Number of pages3
JournalIEEE Photonics Technology Letters
Volume3
Issue number9
DOIs
Publication statusPublished - Sep 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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