US 11,940,714 B2
Ultra-low-noise, on-chip quantum devices
Ivan A. Burenkov, Gaithersburg, MD (US); and Sergey V. Polyakov, Gaithersburg, MD (US)
Assigned to University of Maryland, College Park, College Park, MD (US); and Government of the United States of America, as Represented by the Secretary of Commerce, Washington, DC (US)
Filed by University of Maryland, College Park, College Park, MD (US); and Government of the United States of America, as Represented by the Secretary of Commerce, Washington, DC (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,451.
Claims priority of provisional application 63/122,562, filed on Dec. 8, 2020.
Prior Publication US 2022/0179283 A1, Jun. 9, 2022
Int. Cl. G02F 1/35 (2006.01); G02F 1/313 (2006.01); G02F 1/365 (2006.01)
CPC G02F 1/3534 (2013.01) [G02F 1/313 (2013.01); G02F 1/365 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A quantum optical switch, comprising:
a linear waveguide;
a nonlinear waveguide evanescently coupled to the linear waveguide; and
an optical pump field coupled to the nonlinear waveguide,
wherein the nonlinear waveguide is quasi-phase matched to support quantum frequency transduction of signal photons by the optical pump field to enable switching.