论文信息 - High cw power using an external cavity for spectral beam combining of diode laser-bar emission.

High cw power using an external cavity for spectral beam combining of diode laser-bar emission.

In extension to known concepts of wavelength-multiplexing diode laser arrays, a new external cavity is presented. The setup simultaneously improves the beam quality of each single emitter of a standard 25 emitter broad-area stripe laser bar and spectrally superimposes the 25 beams into one. By using this external resonator in an "off-axis" arrangement, beam qualities of Mslow2<14 and Mfast2<3 with optical powers in excess of 10 W in cw operation are obtained.

Volker Raab | Ralf Menzel | Andreas Jechow

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