Flip-chip Wafer-fused OP-VECSELs emitting 3.65 W at the 1.55-μm waveband

Alexandru Mereuta, Kostiantyn Nechay, Andrei Caliman, Grigore Suruceanu, Alok Rudra, Pascal Gallo, Mircea Guina, Eli Kapon

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Optically-pumped vertical external cavity surface emitting lasers (VECSELs) based on flip-chip gain mirrors emitting at the 1.55-μm wavelength range are reported. The gain mirrors employ wafer-fused InAlGaAs/InP quantum well heterostructures and GaAs/AlAs distributed Bragg reflectors fixed on a diamond heat-sink substrate in a flip-chip geometry, incorporated in a V-cavity configuration. A maximum output power of 3.65 W was achieved for a heat sink temperature of 11°C and employing a 2.2% output coupler. The laser exhibited circular beam profiles for the full emission power range. This demonstration represents more than 5-fold increase of the output power compared to state-of-the-art flip-chip VECSELs previously reported at the 1.55 μm wavelength range. It opens new perspectives for developing practical VECSEL-based laser systems operating at a wavelength range widely used in many applications.

Original languageEnglish
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume25
Issue number6
DOIs
Publication statusPublished - 2019
Publication typeA1 Journal article-refereed

Keywords

  • diode pumped
  • Flip-chip devices
  • Heating systems
  • Lasers
  • Mirrors
  • Optical pumping
  • Power generation
  • Semiconductor lasers
  • Temperature measurement
  • Vertical cavity surface emitting lasers
  • Vertical emitting lasers

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Atomic and Molecular Physics, and Optics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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