28 February 2018 Diffraction limited 1064nm monolithic DBR-master oscillator power amplifier with more than 7W output power
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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, Christof Zink, André Maaβdorf, André Maaβdorf, Jörg Fricke, Jörg Fricke, Peter Ressel, Peter Ressel, Martin Maiwald, Martin Maiwald, Bernd Sumpf, Bernd Sumpf, Götz Erbert, Götz Erbert, Günther Tränkle, 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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