High-responsivity 100GHz waveguide UTC photodetector

T. Umezawa, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

We present a double cladding, high-mesa-type waveguide UTC photodetector with an improved the responsivity. In this device structure, an InGaAs thin core layer was sandwiched by p-InP/InGaAsP and n-InP/InGaAsP cladding layers, including a UTC structure, in order to obtain a good optical coupling between the waveguide and the fiber. By comparing the resulting mode field with that obtained with a single cladding layer structure, we confirmed that the vertical mode field was enlarged. Without a spot size converter, the measured responsivity was as high as 0.6 A/W at 1550 nm, which suggests a responsivity three times higher than that of back-illuminated structures, and higher responsivity than that of previous reports. A high frequency performance (f3dB = 100 GHz) was also measured. The device structure, including the layer, doping level conditions, and optical fiber coupling results are discussed, and its performance is characterized in detail.

本文言語English
ホスト出版物のタイトルBroadband Access Communication Technologies XI
編集者Spiros Mikroulis, Benjamin B. Dingel, Katsutoshi Tsukamoto
出版社SPIE
ISBN(電子版)9781510606975
DOI
出版ステータスPublished - 2017
イベントPhotonics West OPTO 2017 Conference on Broadband Access Communication Technologies XI - San Francisco, United States
継続期間: 2017 1月 312017 2月 1

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
10128
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

Other

OtherPhotonics West OPTO 2017 Conference on Broadband Access Communication Technologies XI
国/地域United States
CitySan Francisco
Period17/1/3117/2/1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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