High power tunable yellow laser using InGaAs/GaAs vertical external-cavity surface-emitting lasers

In this work, a highly strained InGaAs/GaAs VECSEL which can cover a longer wavelength range of 1150 nm to 1190 nm is developed. This laser has a robust multi-Watt power performance. Using intracavity frequency doubling, high-power coherent light is demonstrated in a wide yellow-orange band (575~595 nm).