Design and Fabrication of Hybrid Metal Semiconductor Mirror for High-Power VECSEL

K. Gbele, A. Laurain, Jorg Hader, W. Stolz, Jerome V Moloney

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The design, fabrication, and characterization of a hybrid metal-semiconductor distributed Bragg reflector (DBR) for optically pumped vertical external cavity surface emitting laser are reported. The realization of a pure gold reflector attached to an AlGaAs/AlAs DBR is achieved through the realization of a lithography pattern alternating gold and titanium areas for better surface adhesion. This reduces from 28 to 14, and the number of DBR pairs is needed to achieve a reflectivity above 99.9%. Experimental results are supported by simulations and show an output power beyond 4 W with an optical efficiency of 19% and very low thermal impedance, validating the excellent reflectivity and bonding quality of the device.

Original languageEnglish (US)
Article number7349187
Pages (from-to)732-735
Number of pages4
JournalIEEE Photonics Technology Letters
Volume28
Issue number7
DOIs
StatePublished - Apr 1 2016

Keywords

  • DBR
  • Hybrid mirrors
  • Lasers
  • VECSEL

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

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