Skip to Main Content
A p-i-n resonant cavity enhanced photodetector for absorption at 1.55 /spl mu/m has been integrated with two stacks of six pairs of ZnSe-MgF/sub 2/ dielectric mirrors. The stacks act as a notch filter to reflect off-peak radiation. Peak external quantum efficiency over 90% was achieved at 1.52 /spl mu/m, with off-peak rejection of approximately 20 dB across a 700-nm range. Design of the structure was based on simulations using the transfer matrix method.