Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications

Toshimasa Umezawa, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

研究成果: Conference contribution

抄録

We report a 1.5-μm high-responsivity waveguide quantum dot photodetector with an avalanche multiplication effect and high frequency response. With two different QD layer conditions, the responsivity and avalanche multiplication were compared and discussed. The high responsivity of 0.58 A/W and avalanche multiplication factor of around 10 could be obtained. Then, it was inferred that the impact ionization process in the quantum dot superlattice would be created in the depletion layer region, not in the InGaAlAs SL region.

本文言語English
ホスト出版物のタイトルConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
出版社OSA - The Optical Society
ISBN(印刷版)9781509062904
出版ステータスPublished - 2017
イベントConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 - Singapore, Singapore
継続期間: 2017 7 312017 8 4

出版物シリーズ

名前Optics InfoBase Conference Papers
Part F122-CLEOPR 2017

Other

OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
CountrySingapore
CitySingapore
Period17/7/3117/8/4

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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