US 11,880,115 B2
Clock generation for a photonic quantum computer comprising a photon-pair source to convert the converted electrical pulses into a plurality of clock signals at a first repetition rate
Albert Wang, Sunnyvale, CA (US)
Assigned to Psiquantum, Corp., Palo Alto, CA (US)
Filed by Psiquantum, Corp., Palo Alto, CA (US)
Filed on Sep. 21, 2021, as Appl. No. 17/481,045.
Application 17/481,045 is a continuation of application No. PCT/US2019/038314, filed on Jun. 20, 2019.
Application PCT/US2019/038314 is a continuation of application No. 16/362,452, filed on Mar. 22, 2019, granted, now 10,379,420, issued on Aug. 13, 2019.
Prior Publication US 2022/0004079 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01J 1/44 (2006.01); G02F 1/35 (2006.01); G01J 1/04 (2006.01); G06N 10/00 (2022.01); G06F 1/06 (2006.01); H03K 3/38 (2006.01); H03K 3/42 (2006.01); G01J 1/42 (2006.01)
CPC G02F 1/3526 (2013.01) [G01J 1/0488 (2013.01); G01J 1/44 (2013.01); G06F 1/06 (2013.01); G06N 10/00 (2019.01); H03K 3/38 (2013.01); H03K 3/42 (2013.01); G01J 2001/4238 (2013.01); G01J 2001/4413 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for generating clock signals for a photonic quantum computing system, the system comprising:
a pump photon source configured to generate a plurality of pump photon pulses at a first repetition rate;
a photon-pair source optically coupled to the pump photon source, the photon-pair source configured to:
convert a subset of the plurality of pump photon pulses into photon pairs;
output the photon pairs; and
output a portion of each pump photon pulse of the plurality of pump photon pulses;
a photodetector optically coupled to the photon-pair source and configured to:
receive the portion of each pump photon pulse of the plurality of pump photon pulses; and
converting the portion of each pump photon pulse of the plurality of pump photon pulses into a respective electrical pulse of a plurality of electrical pulses; and
a clock generator electrically coupled to the photodetector and configured to convert the plurality of electrical pulses into a plurality of clock signals at the first repetition rate.