Research on the Wide Temperature Range Photoelectric Characteristics of 940 nm Near-infrared VCSEL
LI Guangyao
ZHENG Xi
HE Jiangqi
YUAN Cong
LU Tingwei
LÜ Yijun
CHEN Zhong
GUO Weijie
Abstract：Vertical-Cavity Surface-Emitting Laser(VCSEL)devices with emission wavelength at 940 nm feature the advantages of high efficiency,avoidance of red-bursts,and easy integration,possessing a broad application prospect in consumer electronics,visual imaging,3D sensing,among others.However,the variation on temperature in the operating condition affect the optoelectronic performance of VCSEL.In order to realize the wide-temperature-region operation of optoelectronic system,it is necessary to investigate the variation of optical-electrical characteristics of the VCSEL with temperature and operating current.The electroluminescence characteristics research was carried out for three typical 940 nm VCSELs.The results show that the series resistance varies with temperature,posing an important impact on the electrical characteristics of VCSEL,and the drift of wavelength is closely related to the self-heating effect.
Keywords：VCSEL940 nmphotoelectric characteristicswide temperature zoneelectric current
Publication Date：2023-11-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 16-20 )