Title :
Characterization and theoretical analysis of second-order intermodulation distortion of InGaAs/InP p-i-n photodiode modules for fiber-optic CATV
Author :
Kuhara, Yoshiki ; Fujimura, Yasushi ; Nishiyama, Naoki ; Michituji, Yasunori ; Terauchi, Hitoshi ; Yamabayashi, Naoyuki
Author_Institution :
Opto-Electron. R&D Labs., Sumitomo Electr. Ind. Ltd., Osaka, Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
InGaAs/InP p-i-n photodiode (PD) modules for fiber-optic analog CATV have been developed. The optical configuration was optimized by making use of a spherical lens aberration. Responsivity and second-order intermodulation distortion (IMD2) were 0.95 A/W and -85 dBc at Vr =12 V, Pin=0 dBm, and m=40%, respectively. The improvement of IMD2 by defocusing was explained by the decrease of incident optical power density calculated by ray tracing. IMD2 was quantitatively explained through the reverse voltage dependence of responsivity which originates from the variation of the p+-InGaAs depletion layer thickness
Keywords :
III-V semiconductors; cable television; gallium arsenide; indium compounds; infrared detectors; intermodulation distortion; optical receivers; p-i-n photodiodes; ray tracing; 1.3 mum; 1.55 mum; 12 V; InGaAs-InP; InGaAs/InP p-i-n photodiode modules; analog CATV; defocusing; fiber-optic CATV; optical configuration; optical power density; p+-InGaAs depletion layer thickness; ray tracing; responsivity; reverse voltage dependence; second-order intermodulation distortion; spherical lens aberration; Fiber nonlinear optics; Indium gallium arsenide; Indium phosphide; Intermodulation distortion; Nonlinear optics; Optical distortion; Optical mixing; Optical receivers; PIN photodiodes; Voltage;
Journal_Title :
Lightwave Technology, Journal of
