Quantum-Level Crosstalk Characterization of a 16x16 MEMS Optical Switch for Dynamic Quantum Communications arxiv.org
A commercial 16x16 MEMS switch gets quantified at the quantum level, then blamed for crosstalk in decoy-state BB84.
2 comments
Compared with Honjo's PLC matrix switch, this is more practical, less uniform.
When you hit those 2×10^6 cps leakage cases, is that already enough to saturate or latch the SNSPDs in practice, or is the main issue just the QKD key rate falling off?