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Optical Review

, Volume 13, Issue 1, pp 20–23 | Cite as

Microchip-Type InGaN Vertical External-Cavity Surface-Emitting Laser

  • Si-Hyun ParkEmail author
  • Heonsu Jeon
LASERS

Abstract

We fabricated microchip-type InGaN vertical external-cavity surface-emitting lasers (VECSELs) integrated with microlenses and investigated their operational properties using an optical pumping method. We confirmed that the multimode lasing operation is consistent with a given VECSEL structure and that there is an optimized curvature radius in terms of the threshold input energy, slope efficiency, and mode stabilization. A simple theory using the Gaussian beam mode provides an excellent explanation of VECSEL lasing properties and the effect of the microlens on lasing.

Key words

vertical external cavity surface emitting laser microchip microlens mode stabilization Gaussian beam mode 

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Copyright information

© The Optical Society of Japan 2006

Authors and Affiliations

  1. 1.School of PhysicsSeoul National UniversityKorea
  2. 2.Department of Photonic EngineeringChosun UniversityKorea

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