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We demonstrate a novel structure of photodiode. By incorporating the leaky optical waveguide with distributed-Bragg-reflector (DBR) and partially p-doped photo-absorption layer, this device exhibits much superior performance of speed, saturation power, and responsivity to the control without DBR mirrors
In this letter, we describe a novel edge-coupled photodiode (PD) structure, which can greatly relax the dependence of the responsivity on the cleaved length of an evanescently coupled optical waveguide. The integration of a leaky optical waveguide with a distributed Bragg reflector (DBR) and a partially p-doped photoabsorption layer allows the demonstrated device to exhibit a higher saturation current-bandwidth...
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