Optically pumped semiconductor vertical-external-cavity surface-emitting laser (VECSEL) potentially provides an
innovative approach to low-cost frequency agile lasers engineered for specific applications in infrared and visible range.
In this paper, we report on the development and demonstration of a multi-Watt highly strained InGaAs/ GaAs vertical-external-
cavity surface-emitting laser (VECSEL), which can be tuned from 1147 nm to 1197 nm. Based on this tunable
InGaAs/GaAs VECSEL and intracavity frequency doubling, we develop multi-Watt frequency-doubled tunable
VECSEL in a wide yellow-orange band (579 ~595 nm). This compact high-power yellow-orange laser provides an
innovative approach to an affordable guidestar laser (~589.1 nm) solution, and has a lot of important applications in
We present an overview of a novel first principles quantum approach to designing and optimizing
semiconductor QW material systems for target wavelengths. Using these microscopic inputs as basic building
blocks we predict the L-I characteristic for a low power InGaPAs ridge laser without having to use adjustable
fit parameters. Finally we employ these microscopic inputs to develop sophisticated simulation capabilities
for designing and optimizing end packaged high power laser structures. As an explicit example of the latter,
we consider the design and experimental demonstration of a vertical external cavity semiconductor laser
In this paper we present the development and demonstration of multi-watts highbrightness vertical-external-cavity surface-emitting lasers (VECSELs). Over 10 W TEM00 continuous-wave (CW) output power with high efficiency is demonstrated. Tunable multi-watts VECSELs with over 20 nm tuning range and narrow linewidth are achieved. Potential applications of tunable VECSELs are introduced.
Tapered unstable resonator lasers incorporating laterally finite mirrors are reported. By reducing the lateral extent of mirrors, cavity losses may be shifted from internal losses (contributing to scattering and absorption) to mirror losses (contributing to output power). Design of these cavities will be discussed and evaluated. Experimental data substantiates theoretical analysis, showing an increase in slope efficiency of 40% over conventional infinite aperture tapered lasers.