Tegegne, Zerihun Gedeb and Viana, Carlos and Rosales, Marc D. and Schiellein, Julien and Polleux, Jean-Luc and Grzeskowiak, Marjorie and Richalot, Elodie and Algani, Catherine
An 850 nm SiGe/Si HPT with a 4.12 GHz maximum optical transition frequency and 0.805A/W responsivity.
(2017)
International Journal of Microwave and Wireless Technologies, 9 (1). 17-24. ISSN 1759-0787
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 679kB |
Official URL: https://doi.org/10.1017/S1759078715001531
Abstract
A 10 × 10 μm2 SiGe heterojunction bipolar photo-transistor (HPT) is fabricated using a commercial technological process of 80 GHz SiGe bipolar transistors (HBT). Its technology and structure are first briefly described. Its optimal opto-microwave dynamic performance is then analyzed versus voltage biasing conditions for opto-microwave continuous wave measurements. The optimal biasing points are then chosen in order to maximize the optical transition frequency (fTopt) and the opto-microwave responsivity of the HPT. An opto-microwave scanning near-field optical microscopy (OM-SNOM) is performed using these optimum bias conditions to localize the region of the SiGe HPT with highest frequency response. The OM-SNOM results are key to extract the optical coupling of the probe to the HPT (of 32.3%) and thus the absolute responsivity of the HPT. The effect of the substrate is also observed as it limits the extraction of the intrinsic HPT performance. A maximum optical transition frequency of 4.12 GHz and an absolute low frequency opto-microwave responsivity of 0.805A/W are extracted at 850 nm.
Item Type: | Article |
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HAL Id: | hal-01436955 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Other partners > Conservatoire National des Arts et Métiers - CNAM (FRANCE) Other partners > Ecole de l'Innovation Technologique - ESIEE PARIS (FRANCE) Other partners > Université Paris-Est Marne-La-Vallée - UPEM (FRANCE) Other partners > University of the Philippines (PHILIPPINES) |
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Deposited On: | 25 Jun 2019 09:16 |
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