Soochow University

Geng He

Hao Zhou

Qinhua Wang

Wangyibo Chen

Zhihao Yuan

Xianjie Xiong

Anlin Luo

Bing Cao

Liyue Xu

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.

Laser with hexagonal semiconductor microdisk

Growing community of inventors

Suzhou, China

Geng He