28 February 2018 Diffraction limited 1064nm monolithic DBR-master oscillator power amplifier with more than 7W output power
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Abstract
High brightness diode lasers with a spectrally narrowband emission, several watts of output power with an almost diffraction limited beam quality are requested light sources for several applications. In this work, a monolithic master oscillator power amplifier will be presented. The resonator of the master oscillator is formed by a high-reflection DBR grating on the rear side and an internal DBR mirror. Its power is amplified in a ridge waveguide followed by a tapered section. The monolithic MOPA provides over 7 W at 1064 nm with a narrow spectral emission width below 20 pm and an almost diffraction limited beam.
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Christof Zink, André Maaβdorf, Jörg Fricke, Peter Ressel, Martin Maiwald, Bernd Sumpf, Götz Erbert, Günther Tränkle, "Diffraction limited 1064nm monolithic DBR-master oscillator power amplifier with more than 7W output power", Proc. SPIE 10553, Novel In-Plane Semiconductor Lasers XVII, 105531C (28 February 2018); doi: 10.1117/12.2288977; https://doi.org/10.1117/12.2288977
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