Title :
High-Current Photodetectors as Efficient and High-Power RF Output Stages
Author :
Williams, Keith J. ; Tulchinsky, David A. ; Boos, John B. ; Park, Doewan ; Goetz, Peter G. ; Rabinovich, William S.
Author_Institution :
Photonics Technol., Naval Res. Lab., Washington, DC
Abstract :
This paper describes an improved photodetector design which demonstrates excellent large- and small-signal behavior. Maximum small-signal compression currents have increased to over 700 mA at 300 MHz. Output RF power amplifier stage efficiencies of 40% (class AB operation) and over 27% (class A) has been achieved from 0.3 to 6 GHz with RF power outputs over +24 dBm
Keywords :
microwave photonics; microwave power amplifiers; photodetectors; 0.3 to 6 GHz; 300 MHz; class A operation; class AB operation; high-current photodetector design; high-power RF power amplifier stages; large-signal behavior; small-signal behavior; small-signal compression currents; Bandwidth; Operational amplifiers; Optical amplifiers; Optical saturation; Photoconductivity; Photodetectors; Photodiodes; Radio frequency; Radiofrequency amplifiers; Voltage; High-power photodetectors; photodetectors; photodiodes; saturation current; space-charge effect;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346563
