Patent ID: 11956017
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. A spectrally multiplexed quantum repeater comprising:
a waveguide;
spectrally multiplexed defect centers in optical communication with a mode guided by the waveguide and resonant at respective visible frequencies;
a first laser to generate pump pulses at a pump frequency;
a modulator, in optical communication with the first laser, to modulate sidebands onto the pump pulses at frequencies corresponding to the respective visible frequencies of the spectrally multiplexed defect centers;
a second laser to generate a laser beam at a telecommunications frequency;
a first frequency converter, in optical communication with the modulator, the second laser, and the spectrally multiplexed defect centers, to mix first portions of the sidebands with the laser beam to produce pulses at the respective visible frequencies, the pulses at the respective visible frequencies causing the spectrally multiplexed defect centers to emit spectrally multiplexed quantum signals at the respective visible frequencies; and
a second frequency converter, in optical communication with the modulator and the spectrally multiplexed defect centers, to mix second portions of the sidebands with the spectrally multiplexed quantum signals to produce temporally multiplexed quantum signals at the telecommunications frequency.