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Opt Express. 2009 Apr 13;17(8):6532-9.

1.5 W green light generation by single-pass second harmonic generation of a single-frequency tapered diode laser.

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  • 1DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Frederiksborgvej 399, DK- 4000 Roskilde, Denmark.


More than 1.5 W of green light at 531 nm is generated by single-pass second harmonic generation in periodically poled MgO:LiNbO3. The pump laser is a high power tapered laser with a distributed Bragg reflector etched in the ridge section of the laser to provide wavelength selectivity. The output power of the single-frequency tapered laser is 9.3 W in continuous wave operation. A conversion efficiency of 18.5 % was achieved in the experiments.

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