Ultra-wide-band long-wavelength photodetectors

K. Kato, Y. Akatsu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Developments and performances of ultra-wide-band long-wavelength photodetectors are outlined. Theoretical consideration shows the competence of the waveguide p-i-n photodetector for ultra-wide-band long-wavelength optical fibre communication. A newly proposed multimode waveguide p-i-n photodetector with mushroom-mesa structure can relax the parasitic limits, and reaches a record performance of 110 GHz bandwidth and 50% external quantum efficiency at a 1.55 μm wavelength. A high-speed monolithically integrated photoreceiver using the waveguide p-i-n photodetector is also presented.

Original languageEnglish
Pages (from-to)557-564
Number of pages8
JournalOptical and Quantum Electronics
Issue number5
Publication statusPublished - 1996
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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