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Robust clock recovery is essential for optical receivers that can operate over a wide range of data rates. The multi-rate burst-mode DPSK format that is finding applications in NASA’s Laser Communications Relay Demonstration (LCRD) leverages a single optically-preamplified receiver that can maintain nearly theoretical performance for data rates spanning more than two orders of magnitude. Clock recovery...
We demonstrate an average-power-based technique for aligning data and clock signals in consolidated tri-state multi-rate burst-mode DPSK transmitters with a simple and low-SWaP implementation.
We demonstrate the potential for 1.85 Mbit/s secure key rates over 101 km of fiber, >100 times faster than previously demonstrated, using the differential phase shift quantum key distribution protocol and superconducting nanowire single-photon detectors.
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