Title :
InP-based ultra-fast photodetectors for millimeter-wave sub-harmonic mixers
Author :
Rouvalis, Efthymios ; Fice, Martyn J. ; Renaud, Cyril C. ; Seeds, Alwyn J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
A novel scheme for efficient optoelectronic down-conversion of millimeter-wave signals is presented. A Coplanar Waveguide-integrated Uni-Traveling Carrier Photodiode with a Traveling wave design was used as the optoelectronic mixer. For fundamental mixing at a frequency of 100 GHz a conversion gain of -32 dB was found that is a significant improvement compared to previously published results. For sub-harmonically pumped mixing lower gain was measured depending on the harmonic order. Flat IF response was found for a wide range of frequencies.
Keywords :
III-V semiconductors; coplanar waveguides; indium compounds; integrated optoelectronics; millimetre wave detectors; millimetre wave mixers; photodetectors; photodiodes; semiconductor counters; InP; coplanar waveguide-integrated unitraveling carrier photodiode; flat IF response; frequency 100 GHz; gain -32 dB; millimeter-wave signal; millimeter-wave subharmonic mixer; optoelectronic down-conversion; optoelectronic mixer; subharmonic pumped mixing lower gain; traveling wave design; ultrafast photodetector; Frequency measurement; Gain; Mixers; Optical mixing; Optical pumping; Photodiodes; Millimeter-wave; Sub-harmonic mixer; Terahertz; Uni-traveling Carrier Photodiode;
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088668
