The thermal stability of a vertical-cavity surface-emitting laser（VCSEL） array is enhanced by redesigning the mesa arrangement. Based on a thermoelectric coupling three-dimensional（3D） finite-element model, an opt...The thermal stability of a vertical-cavity surface-emitting laser（VCSEL） array is enhanced by redesigning the mesa arrangement. Based on a thermoelectric coupling three-dimensional（3D） finite-element model, an optimized VCSEL array is designed. The effects of this optimization are studied experimentally. Power density characteristics of VCSEL arrays with different mesa configuration are obtained under different thermal stress in which the optimized device shows improved performance. Optimized device also shows better stability from measured spectra and calculated thermal resistances. The experimental results prove that our simulation model and optimization is instructive for VCSEL array design.展开更多
A simple microlens array is designed between VCSEL array and fiber array for integration of array module. We increase the optical coupling efficiency from -32.057 dBm to -0.9054 dBm by using our designed microlens array.
基金supported by the National Natural Science Foundation of China(Grant Nos.61434005,61474118,61376070,11404326,and 11674314)the Jilin Provincial Scientific and Technological Development Program,China(Grant No.20150203011GX)+1 种基金the Changchun Science and Technology Project,Jilin Province,China(Grant No.15SS02)the Youth Innovation Promotion Association,Chinese Academy of Sciences(Grant No.2017260)
文摘The thermal stability of a vertical-cavity surface-emitting laser（VCSEL） array is enhanced by redesigning the mesa arrangement. Based on a thermoelectric coupling three-dimensional（3D） finite-element model, an optimized VCSEL array is designed. The effects of this optimization are studied experimentally. Power density characteristics of VCSEL arrays with different mesa configuration are obtained under different thermal stress in which the optimized device shows improved performance. Optimized device also shows better stability from measured spectra and calculated thermal resistances. The experimental results prove that our simulation model and optimization is instructive for VCSEL array design.
文摘A simple microlens array is designed between VCSEL array and fiber array for integration of array module. We increase the optical coupling efficiency from -32.057 dBm to -0.9054 dBm by using our designed microlens array.
