公开(公告)号：US20230223741A1

公开(公告)日：2023-07-13

申请号：US17439321

申请日：2020-03-12

Applicant: Texas Tech University System

Inventor： Hongxing Jiang ,  Zhenyu Sun ,  Yaqiong Yan ,  Jing Li ,  Jingyu Lin

IPC: H01S5/22 ,  H01S5/026 ,  H01S3/063

CPC classification number: H01S5/2214 ,  H01S5/0265 ,  H01S3/0632

Abstract: Core-cladding planar waveguide (PWG) structures and methods of making and using same. The core-cladding PWG structures can be synthesized by hydride vapor phase epitaxy and processed by mechanical and chemical-mechanical polishing. An Er doping concentration of [Er] between 1×1018 atoms/cm3 and 1×1022 atoms/cm3 can be in the core layer. Such PWGs have a core region that can achieve optical confinement between 96% and 99% and above.