Ws. Wu et al., ANALYSIS OF THE EFFECT OF AN ELECTRIC-FIELD PROFILE ON THE GAIN-BANDWIDTH PRODUCT OF AVALANCHE PHOTODETECTORS, Optics letters, 22(15), 1997, pp. 1183-1185
We investigate the effect of the electric-field profile on the gain-ba
ndwidth product of avalanche photodetectors with separate absorption a
nd multiplication. We show that for a given multiplication layer thick
ness the electric-field profile plays an important role in determining
the gain-bandwidth product. The calculation results show that an incr
easing triangular electric-field profile yields a larger gain-bandwidt
h product than most other profiles for Si/InGaAs avalanche photodetect
ors. (C) 1997 Optical Society of America.