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:
Nov. 26, 2024
Filed:
Sep. 30, 2020
Soochow University, Suzhou, CN;
Bing Cao, Suzhou, CN;
Geng He, Suzhou, CN;
Qinhua Wang, Suzhou, CN;
Xianjie Xiong, Suzhou, CN;
Zhihao Yuan, Suzhou, CN;
Hao Zhou, Suzhou, CN;
Anlin Luo, Suzhou, CN;
Wangyibo Chen, Suzhou, CN;
Liyue Xu, Suzhou, CN;
SOOCHOW UNIVERSITY, Suzhou, CN;
Abstract
A laser with a hexagonal semiconductor microdisk to solve the problems of a low quality factor of a hexagonal whispering-gallery mode and light exiting difficulty of a triangular whispering-gallery mode is disclosed. Based on physical characteristics of stimulated radiation of gain materials with a high refractive index, the apparatus uses a distributed Bragg reflection layer to reduce an optical loss of a microcavity laser, and uses a hexagonal semiconductor microdisk as an optical resonator and laser gain material. As an optical pump source, the laser provides an optical gain, and when the gain exceeds a microcavity laser threshold, generates laser light for exiting. By controlling a laser spot of the pump source to be located at a corner of the hexagonal microdisk, the laser light in a double-triangular whispering-gallery optical resonance mode is generated after stimulated radiation for exiting.