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Recent developments of wafer-fused long-wavelength VECSELs resulted in reaching record high CW output power of 6.6 W at 1300 nm and a coherence length longer than 5 km in fiber and 1 Watt of output power in single frequency regime at 1550 nm. First wafer-fused electrically pumped VECSELs emitting at 1470 nm demonstrate maximum CW output power of 6.5 mW which represents more than 10-times improvement compared with previously published results.
Michael Graetzel, Ursula Röthlisberger, Mohammad Ibrahim Dar, Gwénolé Jean Jacopin, Ariadni Boziki
Ursula Röthlisberger, Swarnendu Bhattacharyya