2022 Fiscal Year Final Research Report
Research on the instantaneous-response burst-mode transmitter and receiver circuits.
Project/Area Number |
20K04600
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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Research Institution | Kyushu University |
Principal Investigator |
Kimura Shunji 九州大学, システム情報科学研究院, 教授 (80732974)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 光アクセスネットワーク / バースト伝送 / バースト送受信器 / 瞬時応答回路 / 反転歪補償回路 / M値制御 |
Outline of Final Research Achievements |
Burst-mode transmission technology used in optical access networks has been employed with instantaneous response performance that is far from ideal as a result of the fact that the ideal circuit configuration was not suitable for mass production. We were able to confirm the feasibility of a burst-mode transceiver technology with a simple circuit configuration that is compatible with mass production technologies such as capacitive coupling. An instantaneous response receiver circuit based on inverted distortion compensation technology using an average-value detection circuit was analytically shown to be capable of responding in as little as 7.56 nanoseconds. Furthermore, the operating principle of the burst-mode transmitter circuit, a feedback circuit configuration technique with a variable time constant for future high-speed burst-mode transmission using PAM4 modulation, and the effect of sensitivity improvement by M-value control on a multi-rate burst-mode receiver were clarified.
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Free Research Field |
光アクセスネットワーク
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Academic Significance and Societal Importance of the Research Achievements |
現在光アクセスネットワークに採用されているバースト送受信回路の多くは、量産性を確保する為に瞬時応答性能を犠牲にしているため、比較的長いオーバーヘッドを必要とする。本技術によるバースト送受信器を実現し、社会実装が可能になると光アクセスネットワークの伝送効率が飛躍的に向上する。今後、固定移動網融合など、移動体ネットワークにおいても光アクセスネットワークの技術は重要性を高めるものと思われるので、ネットワークを使うすべてのユーザにメリットをもたらす技術と言える。
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