Title :
Four quadrant photo-detector with ultra high common mode rejection ratio and ultra narrow gap
Author_Institution :
Inst. of Metrology "G. Colonnetti", CNR, Torino, Italy
Abstract :
A four quadrant detector designed to be used as a laser beam alignment device is demonstrated. This detector design eliminates two of the most important limits of the classic monolithic four quadrant photodetectors: the limited dynamic range and the finite nonsensitive area between the sectors.
Keywords :
optical design techniques; photodetectors; photodiodes; classic monolithic photodetectors; common mode rejection ratio; detector design; four quadrant photodetector; laser beam alignment device; photodiodes; ultrahigh mode rejection ratio; ultranarrow gap; Anodes; Cathodes; Dynamic range; Face detection; Laser beams; Metrology; Mirrors; Optical design; Performance gain; Photodiodes;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363105
