Back to Search Start Over

Large Submillimeter High-Speed Photodetector for Large Aperture FSO Receiver

Authors :
Kouichi Akahane
Naokatsu Yamamoto
Atsushi Matsumoto
Toshimasa Umezawa
Shinya Nakajima
Source :
IEEE Journal of Selected Topics in Quantum Electronics. 28:1-9
Publication Year :
2022
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2022.

Abstract

We report a large submillimeter high-speed arrayed photodetector (PD) with a single-output design for high optical-alignment robustness free-space optical (FSO) communications. To realize a large photodetective area with a single-output design of over 10 Gbps, 8 × 8 multi-pixel PDs were designed and fabricated in a series–and-parallel network. To avoid sacrificing the frequency response, we successfully developed a large photodetective area PD, as large as 0.4 mm × 0.4 mm, with the same frequency response (8.5 GHz) as that in a small single PD (40-μm diameter worth). With the photodetector design and its characteristics, a high data-rate FSO demonstration of up to 25 Gbps for 10-m FSO communications was presented.

Details

ISSN :
15584542 and 1077260X
Volume :
28
Database :
OpenAIRE
Journal :
IEEE Journal of Selected Topics in Quantum Electronics
Accession number :
edsair.doi...........6a3b61b8f72fe73be237fb30959a40b6