US 12,292,669 B2
Coupled resonator photon-pair sources
Mihai Dorian Vidrighin, Palo Alto, CA (US); Damien Bonneau, Le Pradet (FR); Alessandro Farsi, Mountain View, CA (US); and Mark G. Thompson, Palo Alto, CA (US)
Assigned to Psiquantum, Corp., Palo Alto, CA (US)
Filed by Psiquantum, Corp., Palo Alto, CA (US)
Filed on May 31, 2023, as Appl. No. 18/204,185.
Application 18/204,185 is a continuation of application No. 17/321,077, filed on May 14, 2021, granted, now 11,698,570.
Application 17/321,077 is a continuation of application No. PCT/US2019/038311, filed on Jun. 20, 2019.
Application PCT/US2019/038311 is a continuation of application No. 16/192,770, filed on Nov. 15, 2018, granted, now 10,372,014, issued on Aug. 6, 2019.
Prior Publication US 2024/0027872 A1, Jan. 25, 2024
Int. Cl. G02F 1/365 (2006.01); G02F 1/35 (2006.01); H04B 10/70 (2013.01); G02B 6/293 (2006.01); G02F 1/39 (2006.01)
CPC G02F 1/365 (2013.01) [G02F 1/3536 (2013.01); H04B 10/70 (2013.01); G02B 6/29343 (2013.01); G02F 1/395 (2013.01); G02F 2201/302 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device comprising:
a pump waveguide configured to transport pump photons;
a first Mach-Zehnder interferometer (MZI) coupled to the pump waveguide;
a first resonator coupled to the first MZI and characterized by a first resonance linewidth;
a second resonator coupled to the first resonator and characterized by a second resonance linewidth less than the first resonance linewidth;
a second MZI coupled to the second resonator; and
an output waveguide coupled to the second MZI.