公开(公告)号：US20240006859A1

公开(公告)日：2024-01-04

申请号：US18468071

申请日：2023-09-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangcan Chen ,  Yuanbing Cheng ,  Yanbo Li

IPC: H01S5/50 ,  H01S5/026 ,  H01S5/34

CPC classification number: H01S5/50 ,  H01S5/0261 ,  H01S5/3407

Abstract: An optical modulation and amplification apparatus, an optical module, an optical network unit, and an optical communication system are provided. The optical modulation and amplification apparatus includes an electric absorption modulator and a semiconductor optical amplifier. The electric absorption modulator and the semiconductor optical amplifier share a same substrate and a same multi-layer material structure. The multi-layer material structure includes, from bottom to top, at least a first quantum well, an electron blocking layer, a second quantum well, and an upper separate confinement layer. The electric absorption modulator is configured to modulate injection light by using the first quantum well, and the semiconductor optical amplifier is configured to amplify the injection light by using the second quantum well.