DocumentCode :
3193295
Title :
Exploiting Ballistic Electrons in a Uni-Traveling Carrier Traveling Wave Photo-Detector for Efficient Generation of Sub-MM Waves
Author :
Madjar, Asher ; Herczfeld, Peter R. ; Rosen, Arye ; Yu, Paul
Author_Institution :
Drexel University, ECE Department, 32nd & Chestnut sts., Philadelphia, PA 19104
fYear :
2005
fDate :
12-14 Oct. 2005
Firstpage :
133
Lastpage :
136
Abstract :
The Generation of microwave signals by heterodyning two optical signals has been demonstrated in the past. However, so far this approach is limited in bandwidth, power and efficiency. In this paper we present an analysis of optical heterodyning in the uni-traveling carrier traveling wave photo detector taking into account the effect of ballistic electrons. The analysis is validated by comparison to measurement of an existing device made at the University of California, San Diego. Based on the above analysis a new photodiode design is made, which is expected to have a bandwidth well into the sub-MM wave region. The device exploiting the ballistic electrons effect can reach a bandwidth 2-3 times larger compared to device using velocity-saturated electrons.
Keywords :
UTC; optical heterodyne; photo detector; sub millimeter wave; Bandwidth; Electron optics; Microwave generation; Optical mixing; Photodiodes; Signal generators; UTC; optical heterodyne; photo detector; sub millimeter wave;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Photonics, 2005. MWP 2005. International Topical Meeting on
Print_ISBN :
89-950043-3-9
Type :
conf
DOI :
10.1109/MWP.2005.203557
Filename :
1590285
Link To Document :
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