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Multiwatt VECSEL Output Is Wavelength-Tunable

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Breck Hitz

Optically pumped, vertical-external-cavity surface-emitting lasers (VECSELs) produce multiwatt outputs with good beam quality, but until now their spectral characteristics have been less than optimal. Their linewidths are too wide for many applications, and the central wavelength tends to drift with thermal changes of the laser. Recently, researchers at the University of Arizona and Areté Associates, both in Tucson, and at Philipps Universität Marburg in Germany inserted a birefringent filter into the resonator of an optically pumped VECSEL and obtained a spectrally narrow, multiwatt,...Read full article

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    Published: March 2006
    diode lasersoptically pumpedResearch & TechnologyTech Pulsevertical-external-cavity surface-emitting lasersWavelength-tunableLasers

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