Title :
Optical sensor with integrated four-quarter photodiode for speed-enhancement
Author :
Förtsch, Michael ; Zimmermann, Horst ; Pless, Holger
Author_Institution :
Inst. for Electr. Measurements & Circuit Design, Vienna Univ. of Technol., Austria
Abstract :
The large junction capacitance of photodiodes with large diameters limits both the bandwidth and the noise behavior of attached transimpedance amplifiers. With the large-area photodiode divided into four sections, the bandwidth of an optical sensor is increased from 89 MHz to 223 MHz. Simultaneously, the photosensitivity is more than doubled to 75 mV/μW.
Keywords :
amplifiers; optical receivers; optical sensors; p-i-n photodiodes; sensitivity; 223 MHz; 89 MHz; PIN photodiode; POF receiver; integrated four-quarter photodiode; large diameter photodiodes; optical sensor bandwidth; photodiode large junction capacitance; photosensitivity; sensitivity enhancement; speed-enhancement; summation amplifier; transimpedance amplifiers; Bandwidth; Capacitance; Optical amplifiers; Optical fiber communication; Optical noise; Optical receivers; Optical sensors; PIN photodiodes; Resistors; Stimulated emission;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351282
