The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2026
Filed:
Dec. 09, 2025
Hqphotonics Inc., Pasadena, CA (US);
Jiang Li, Alhambra, CA (US);
Kerry Vahala, Pasadena, CA (US);
HQPHOTONICS INC., Pasadena, CA (US);
Abstract
A ring optical resonator is characterized by a Brillouin shift frequency Ω. A first pump laser source produces a first pump optical signal at a first pump optical frequency νand launches it into the ring optical resonator to propagate in a forward direction around the ring optical resonator. A backscattered portion of the first pump optical signal propagates back to the first pump laser source and injection-locks it so that the first pump optical frequency νis locked to a first resonant mode optical frequency of the ring optical resonator. The first pump optical signal circulating in the ring optical resonator results in a first stimulated Brillouin laser (SBL) optical signal at a first SBL optical frequency ν=ν−Ωthat resonantly propagates in a backward direction around the ring optical resonator at a different resonant mode optical frequency of the ring optical resonator.