Inverted p-down Design for High-Speed Photodetectors

Autor: Masahiro Nada, Fumito Nakajima, Toshihide Yoshimatsu, Yasuhiko Nakanishi, Atsushi Kanda, Takahiko Shindo, Shoko Tatsumi, Hideaki Matsuzaki, Kimikazu Sano
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Photonics, Vol 8, Iss 2, p 39 (2021)
Druh dokumentu: article
ISSN: 2304-6732
DOI: 10.3390/photonics8020039
Popis: We discuss the structural consideration of high-speed photodetectors used for optical communications, focusing on vertical illumination photodetectors suitable for device fabrication and optical coupling. We fabricate an avalanche photodiode that can handle 100-Gbit/s four-level pulse-amplitude modulation (50 Gbaud) signals, and pin photodiodes for 100-Gbaud operation; both are fabricated with our unique inverted p-side down (p-down) design.
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