Polarization encoding transforms environmental scattering into a secure channel, resolving interference issues in non-line-of-sight quantum communication.
Wide-field telescope and beam corrector collimate quantum signals, eliminating heavy mechanical steering assemblies to reduce weight and complexity.
A semi-passive entangled-photon protocol encodes signals via selective reflection to camouflage sender and receiver locations.
Resonator stores probe photons while absorber captures signal photon to shift resonance and release multiple probe photons, reducing jitter and dark counts.
Photonic integrated circuits replace bulk optics to resolve phase stability and scalability contradictions in quantum enigma machines.
Segmented detection units distribute local oscillator power to prevent detector saturation while improving shot-noise sensitivity for long-distance CV-QKD.
Spatial light modulators route optical signals through free space to establish secure quantum key distribution links between datacenter endpoints.
Co-propagating pulses stabilize quantum states through optical channels, reducing bit error rates caused by diffraction and turbulence.
Composite optical modulator generates three intensity and four phase values using dual-path interference.