Em. Wright et al., COUPLED-MODE THEORY OF VERTICALLY INTEGRATED IMPEDANCE-MATCHED WAVE-GUIDE PHOTODETECTORS, Optics communications, 117(1-2), 1995, pp. 170-178
Using coupled-mode theory, a simple model is developed which elucidate
s the operation of vertically integrated waveguide/photodetectors with
emphasis on the underlying physical principles. The coupled-mode theo
ry results are shown to agree well with numerical simulations using th
e finite difference beam propagation method.