The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Mar. 27, 2020
Guangdong University of Technology, Guangzhou, CN;
Shengli Xie, Guangzhou, CN;
Kan Xie, Guangzhou, CN;
Yanzhou Zhou, Guangzhou, CN;
Haochuan Zhang, Guangzhou, CN;
Guangdong University of Technology, Guangzhou, CN;
Abstract
Provided is an optical interference light source device of a current-temperature controlled semiconductor laser, including a heat dissipation plate, a ring-shaped semiconductor refrigerating sheet, a semiconductor laser, a PCB board, a thermal sensor and a fixed plate. The first circular window copper area of the PCB is in contact with the second circular copper area through a via. A lower end of a housing of the semiconductor laser is connected to the first circular windowed copper area through a thermally conductive silicone grease. The ring-shaped semiconductor refrigerating sheet is connected to the first circular window copper area through a thermally conductive silicone grease connected to the heat dissipation plate. The thermal sensor is configured to detect a temperature of the first circular windowed copper area. The present disclosure has beneficial effects of simple structures, good thermal conductivities, high temperature control precisions, and stable output wavelengths of the laser.