Title :
Design and analysis of a quantum dot infrared photodetector for low BER free space optical communication
Author :
Mir, Amna ; Ahmadi, Vahid
Author_Institution :
Lorestan Univ., Khorramabad, Iran
Abstract :
In this paper consider into account the attenuation factors in free space and proper window with high transmission, we analyze and design an appropriate quantum dot infrared photodetector (QDIP) for receiver part in the free space optical (FSO) communication system. In our FSO photodetector designing, selection of proper wavelength, low dark current, high quantum efficiency, high responsivity and low bit error rate, are the main significant factors. Based on the mentioned parameters, QDIP with resonant cavity asymmetric multiple resonant tunneling barriers is designed as the suitable FSO photodetector.
Keywords :
error statistics; infrared detectors; optical communication; optical receivers; photodetectors; quantum dots; resonant tunnelling devices; FSO communication system; FSO photodetector; attenuation factors; high quantum efficiency; low BER free space optical communication; low bit error rate; low dark current; quantum dot infrared photodetector; receiver; resonant cavity asymmetric multiple resonant tunneling barriers; Absorption; BER; FSO; QDIP; Quantum Efficiency; Resonance Cavity;
Conference_Titel :
Electrical Engineering (ICEE), 2011 19th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4577-0730-8
