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A new silicon‐based photoconductive microwave switch
Author(s) -
Flemish Joseph R.,
Kwan Henry W.,
Haupt Randy L.,
Lanagan Michael
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23961
Subject(s) - photoconductivity , microwave , attenuation , optoelectronics , materials science , coplanar waveguide , silicon , substrate (aquarium) , waveguide , signal (programming language) , optics , electrical engineering , telecommunications , engineering , physics , computer science , oceanography , programming language , geology
A silicon‐based photoconductive microwave switch has been designed and fabricated within a coplanar waveguide on a high resistivity Si substrate. This device offers improved signal attenuation per incident optical power when compared with other types of optically controlled attenuators that have been reported. Attenuation of more than 30 dB was achieved by illumination from a single infrared LED. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 248–252, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23961