Kilo-Watt high-power Yb fiber laser at 1117 nm

Venkatapuram S. Sudarshanam; Kazi S. Abedin; Jeffrey W. Nicholson; Clifford E. Headley; David J. DiGiovanni

doi:10.1117/12.2290333

26 February 2018 Kilo-Watt high-power Yb fiber laser at 1117 nm

Venkatapuram S. Sudarshanam, Kazi S. Abedin, Jeffrey W. Nicholson, Clifford E. Headley, David J. DiGiovanni

Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105120D (2018) https://doi.org/10.1117/12.2290333
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We report a 1kW, 14 μm-MFD, Yb fiber laser operating at 1117nm, without any parasitic lasing at shorter wavelengths, and negligible intra-cavity Raman gain at longer wavelengths (>50dB extinction at 1175nm). To the best of our knowledge, this is the first experimental demonstration of 1kW output at 1117nm from an Yb fiber laser. In contrast to the 14 μm-MFD of the gain fiber in this report, our previous records at 1117nm of 400W for an Yb oscillator and 450W for an Yb MOPA, were limited primarily by a 6 μm-MFD gain fiber.

Conference Presentation

Citation Download Citation

Venkatapuram S. Sudarshanam, Kazi S. Abedin, Jeffrey W. Nicholson, Clifford E. Headley, and David J. DiGiovanni "Kilo-Watt high-power Yb fiber laser at 1117 nm", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105120D (26 February 2018); https://doi.org/10.1117/12.2290333

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