Quenching of resonantly enhanced absorption by multimode interference in vertically coupled waveguide photodetectors.
We show that the resonantly enhanced absorption predicted for conventional vertically coupled waveguide photodetectors by steady-state eigenanalysis can overestimate detector absorption (waveguide-to-detector coupling efficiency) owing to modal power nonorthogonality.
Deri
R J
RJ
Pennings
E C
EC
Hawkins
R J
RJ