Design and analysis of ultra-high-speed near-ballistic uni-traveling- carrier photodiodes under a 50-Ω load for high-power performance

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Title:	Design and analysis of ultra-high-speed near-ballistic uni-traveling- carrier photodiodes under a 50-Ω load for high-power performance
Authors:	許晉瑋;Shi, Jin-Wei;Kuo, Feng-Ming;Bowers, John E.
Contributors:	資訊電機學院電機工程學系
Keywords:	Bandwidth;Equations;Frequency measurement;High-power photodiode;Indium phosphide;Photodiodes;photonic transmitter;Power generation;Power measurement
Date:	2012-03-15
Issue Date:	2026-04-23 13:48:26 (UTC+8)
Publisher:	Institute of Electrical and Electronics Engineers Inc.;IEEE
Abstract:	摘要： We demonstrate a near-ballistic uni-traveling-carrier photodiode (NBUTC-PD) with a scaled-down epi-layer structure designed for high-power performance in the sub-THz frequency regime. Compared with UTC-PDs, NBUTC-PDs offer a higher optimum bias voltage for the near-ballistic transport of electrons, which leads to improvement in the output power performance. Furthermore, a small load resistance ( <; 50 Ω), which would sacrifice the output power for minimizing the output ac voltage swing on dc bias point, is not necessary. By scaling down the collector layer thickness and active area of the NBUTC-PDs, we achieve a large optical-to-electrical bandwidth (250 GHz) and a high saturation current (17 mA), which is close to the theoretical maximum, under a 50-Ω load and -2-V bias. 其他題名： LPT 出版者： IEEE 出版日期： 2012-04-01 出處： IEEE Photonics Technology Letters, 2012-04, Vol.24 (7), p.533-535 資源來源： IEEE Electronic Library (IEL) 識別號： ISSN: 1041-1135 識別號： EISSN: 1941-0174 識別號： DOI: 10.1109/LPT.2011.2179795 識別號： CODEN: IPTLEL
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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