US Patent Issued to Shenzhen Banyan Photonics Technologies on April 14 for "Ridge-shaped laser structure and surface etched grating semiconductor laser with periodic pumping" (Chinese Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,477, issued on April 14, was assigned to Shenzhen Banyan Photonics Technologies Co. Ltd. (Shenzhen, China).

"Ridge-shaped laser structure and surface etched grating semiconductor laser with periodic pumping" was invented by Fang Wu (Shenzhen, China), Yongbo Tang (Shenzhen, China), Christopher D. Watson (Shenzhen, China), Kirill Y. Pimenov (Shenzhen, China) and Yury Logvin (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a surface etched grating semiconductor laser with periodic pumping structure. The structure includes a lower doped dielectric layer, a multiple quantum well active layer, a ridge-shaped doped dielectric l...