Resonant cavity photodetector with integrated spectral notch filter
- 1 August 1998
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 10 (8) , 1142-1143
- https://doi.org/10.1109/68.701529
Abstract
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.Keywords
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