High-power-density high-efficiency bottom-emitting vertical-cavity surface-emitting laser array

  • Di Liu
  • , Yongqiang Ning
  • , Yugang Zeng
  • , Li Qin
  • , Yun Liu
  • , Xing Zhang
  • , Lisen Zhang
  • , Jinsheng Zhang
  • , Cunzhu Tong
  • , Lijun Wang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We report on the lasing characteristics of a two-dimensional (2D) vertical-cavity surface-emitting laser (VCSEL) array with three In 0.2GaAs/GaAs0.92P QWs emitting at 977 nm. The contribution of a large-bandgap barrier material, GaAsP, to improve the output power was investigated. More than 123W of pulsed peak power at 110 A was achieved, corresponding to 24.6 kW/cm2 of power density and 1.11 W/A of slope efficiency. The thermal effect dependence of the characteristics of the array was illustrated. Moreover, the device performance was estimated by a functional method using a p-parameter.

Original languageEnglish
JournalApplied Physics Express
Volume4
Issue number5
DOIs
StatePublished - May 2011
Externally publishedYes

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