A Coherent Receiver Based on SIM for Quantum Communication

In this letter, we propose theoretically a coherent receiver based on solid-state impact-ionization multiplier (SIM) for quantum communication. In the newly proposed coherent receiver, the balanced photodetector (BPD) is used as a current source connected to the SIM. The signal from the BPD is fed into the SIM, where it is amplified through a desirable avalanche process, which is similar to the av...