Low Thermal Crosstalk 808-nm VCSEL Arrays With Nonlinear Mesa Configuration

In this paper, we demonstrated vertical-cavity surface-emitting laser (VCSEL) arrays with improved thermal stability by arranging the mesa distribution within the array in a nonlinear configuration. Based on our traversal design algorithm, VCSEL arrays with inhomogeneous mesa-distances were realized...

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Bibliographic Details
Published inIEEE photonics journal Vol. 10; no. 6; pp. 1 - 8
Main Authors Chuyu Zhong, Xing Zhang, Hofmann, Werner, Yongqiang Ning, Lijun Wang
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.12.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Configurations
Crosstalk
Heating systems
Laser arrays
Laser excitation
mesa distribution
Mesas
Optimization
optimization algorithm
Temperature distribution
Thermal stability
Thermal stress
VCSEL array
Vertical cavity surface emission lasers
Vertical cavity surface emitting lasers
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Summary:In this paper, we demonstrated vertical-cavity surface-emitting laser (VCSEL) arrays with improved thermal stability by arranging the mesa distribution within the array in a nonlinear configuration. Based on our traversal design algorithm, VCSEL arrays with inhomogeneous mesa-distances were realized. The effects of this rearrangement of mesas on the VCSEL array's thermal stability were studied experimentally. Power-current characteristics and spectra of the 808 nm VCSEL arrays with different mesa distributions were obtained under different thermal stresses in which the optimized devices showed improved performance. The experimental results prove that our algorithm-based optimization is instructive for VCSEL array design.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2018.2876694