Laser diodes emitting at wavelengths around 1060 nm are of great interest as light sources for both medical and industrial applications. For these applications a reliable and efficient operation at high output power is required. In this paper we report on continuous progress in the development of high power laser bars and single emitters emitting at 1060 nm. The development was focused on the epitaxial laser structure design for reliable, long operation at high power levels and various operation modes. As a result we demonstrate 10.000 h life time of laser bars with output power of 200 W in CW hard-pulse mode, as well as 150 Mshots on short cavity laser bars operating at 350 W under pulsed condition. Moreover, initial lifetime tests on single emitters operating at output power of 10 W were performed showing promising reliability.

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A. Pietrzak, M. Zorn, R. Huelsewede, J. Meusel, and J. Sebastian, "Development of highly efficient laser diodes emitting around 1060nm for medical and industrial applications," Proc. SPIE 10900, High-Power Diode Laser Technology XVII, 109000K (Presented at SPIE LASE: February 04, 2019; Published: 4 March 2019); https://doi.org/10.1117/12.2509257.