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1.发明申请公开(公告)号：US20210265528A1
公开(公告)日：2021-08-26
申请号：US17245995
申请日：2021-04-30
Inventor： Zhuang ZHAO , Lei LIU , Nguyen Binh LE , Ting WANG , Jianjun ZHANG
Abstract: This application relates to the electronic technology application field and provides a silicon-based substrate (10), a substrate, a manufacturing method thereof, and an optoelectronic device. The substrate includes: the silicon-based substrate (10), where one surface of the silicon-based substrate (10) has periodic protrusion structures (101), and there is an angle of inclination between a side face of each protrusion structure (101) and a bottom surface; and a group III-V material layer (20) disposed on the surface that is of the silicon-based substrate (10) and that has the protrusion structures (101).
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公开(公告)号：US20220006466A1
公开(公告)日：2022-01-06
申请号：US17448113
申请日：2021-09-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xu SUN , Jiao WANG , Yuchen LIU , Rui LI , Nguyen Binh LE
Abstract: This application discloses a temperature feedback control apparatus, method. The method includes two electric switches, a feedback control unit and an optical component. A first electric switch is configured to control that only a first channel of at least two channels that correspond to the first electric switch is conducted at a moment, to feed back an optical signal of a target optical component connected to the first channel to the feedback control unit. The feedback control unit is configured to calculate temperature of the corresponding optical component based on an electrical signal converted from the optical signal, to obtain a control signal. The second electric switch is configured to control, when the first channel is conducted, that only the second channel is conducted, to transmit the control signal to the target optical component to adjust its temperature. The optical component connects to both the first and second channels.
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