110-GHz, 50%-efficiency mushroom- mesa waveguide p-i-n photodiode for a 1.55-μm wavelength

K. Kato, S. Kozen, Y. Muramoto, Y. Itaya

Research output: Contribution to journalArticlepeer-review

170 Citations (Scopus)

Abstract

A mushroom-mesa structure is proposed to reduce the CR-time constant which originates from the waveguide photodiode structure. Experimental results at a 1.55-μm wavelength show that the multimode waveguide p-i-n photodiode with mushroom-mesa structure has an electrical 3-dB bandwidth of more than 75 GHz in the frequency domain and an electrical 3-dB bandwidth of 110 GHz in the time domain. The external quantum efficiency is 50% or 0.63 A/W, which leads to a record bandwidth-efficiency product of 55 GHz for long wavelength p-i-n photodetectors.

Original languageEnglish
Pages (from-to)719-721
Number of pages3
JournalIEEE Photonics Technology Letters
Volume6
Issue number6
DOIs
Publication statusPublished - Jun 1994
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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