论文信息 - Quantum cascade lasers with large optical waveguides

Quantum cascade lasers with large optical waveguides

Quantum cascade lasers with large optical cavities that exhibit low waveguide losses, high saturation intensities, and low beam divergence, emitting between lambdaap4.3 and 5.2mum were studied. Peak-pulsed powers up to 14 W at 15 K and 5 W at 280 K at lambdaap5.2 mum are demonstrated. A full-width at half-maximum of only 30deg was measured for the transverse far-field pattern of the device operating at lambdaap4.3 mum, a significant reduction compared to conventional waveguides

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