Patent ID: 11936779
Assignee: TRIARII RESEARCH LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus for receiving secure transmission on a transmission link, comprising:
receiving optics effective to receive output light of output optics from a light source;
a beam splitter for receiving light from the receiving optics, where at least one photon received is either transmitted by the beam splitter or reflected by the beam splitter;
at least one polarization beam splitter for receiving the at least one photon to output at least one informative bit value;
a plurality of physically separated delay media, each delay medium is characterized by a different, specified delay corresponding to one of a plurality of states associated with the at least one photon for encoding the at least one informative bit value; and
a device for receiving the at least one photon in a measured timing, where data comprising the at least one informative bit value is indexed by the measured timing.