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Optoelectronic detection of millimetre-wave signals with travelling-wave uni-travelling carrier photodiodes

Rouvalis, E; Fice, MJ; Renaud, CC; Seeds, AJ; (2011) Optoelectronic detection of millimetre-wave signals with travelling-wave uni-travelling carrier photodiodes. Optics Express , 19 (3) 2079 - 2084. 10.1364/OE.19.002079. Green open access

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Abstract

Optically pumped mixing in travelling-wave uni-travelling carrier photodiodes is proposed as a novel technique for detecting millimetre-wave signals. An experimental demonstration was performed at a frequency of 100 GHz. From DC measurements, an increase in the responsivity was found at high levels of optical power. The mixing mechanism is attributed to the variation of the responsivity with the applied reverse bias and the optical input power. The maximum intermediate frequency power was found to be -35 dBm for a 4 dBm radio frequency power, while an average conversion loss of 40 dB was achieved. A wide dynamic range of more than 42 dB was measured, limited by the maximum available millimetre-wave power. (C) 2011 Optical Society of America

Type: Article
Title: Optoelectronic detection of millimetre-wave signals with travelling-wave uni-travelling carrier photodiodes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OE.19.002079
Publisher version: http://dx.doi.org/10.1364/OE.19.002079
Language: English
Additional information: © 2011 Optical Society of America
Keywords: TERAHERTZ TECHNOLOGY, GENERATION
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1299485
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