Abstract

Vertical-External-Cavity Surface-Emitting Lasers (VECSELs) offer an attractive solution for generating light at the visible wavelength range via efficient intracavity frequency-doubling [1]. Amongst the visible wavelengths, the orange-red 600 – 630 nm segment has been hard to reach due to the high lattice strain associated with the mature GaInAs/GaAs quantum well technology. The high lattice strain renders the fabrication of the gain mirrors difficult for the fundamental wavelength between 1200 – 1260 nm. Still, VECSELs emitting at 600–630 nm would be attractive light sources for many applications, including biophotonics and laser illuminated projection. Previously, an output power of 4.6 W has been reported in this wavelength region using dilute nitride quantum wells [2].

© 2015 IEEE

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