US 11,809,061 B2
Optical frequency comb generation in integrated lithium niobate devices
Mian Zhang, Cambridge, MA (US); Cheng Wang, Cambridge, MA (US); Marko Loncar, Cambridge, MA (US); Brandon Taylor Buscaino, Cambridge, MA (US); and Joseph M. Kahn, Cambridge, MA (US)
Assigned to President and Fellows of Harvard College, Cambridge, MA (US); and The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed by President and Fellows of Harvard College, Cambridge, MA (US); and The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed on Oct. 20, 2022, as Appl. No. 17/970,189.
Application 17/970,189 is a division of application No. 17/051,670, granted, now 11,537,026, previously published as PCT/US2019/030003, filed on Apr. 30, 2019.
Claims priority of provisional application 62/664,806, filed on Apr. 30, 2018.
Prior Publication US 2023/0049538 A1, Feb. 16, 2023
Int. Cl. G02F 1/35 (2006.01)
CPC G02F 1/3536 (2013.01) [G02F 2203/56 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A device comprising:
a substrate;
a microring resonator comprising a lithium niobate layer having a thickness of equal to or less than 1 micron, the microring resonator disposed on the substrate;
a pair of electrodes electrically coupled to said microring resonator to allow for applying a microwave signal to the microring resonator for modulating a refractive index of the microring resonator;
a pump laser optically coupled to the microring resonator,
wherein the microring resonator is adapted to emit a Kerr frequency comb when driven by said microwave signal and receiving a pump mode from the pump laser.