
SPCM single-photon counting modules
Silicon SPAD single-photon counting modules (e.g. SPCM-1064, SPCM-NIR, AQRH-TR) used in QKD and entanglement experiments.
Quantum devices

Photonics manufacturer offering single-photon counting modules used in QKD and entanglement experiments.
Qubits, chips, foundry/process offerings, and packaged quantum processors or device dies sold as products.

Silicon SPAD single-photon counting modules (e.g. SPCM-1064, SPCM-NIR, AQRH-TR) used in QKD and entanglement experiments.
Quantum devices