22 March 2013 High efficiency cascaded Raman fiber laser with output power of 204W at 1480 nm
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Abstract
We demonstrate a 1480 nm cascaded Raman fiber laser with a new high efficiency architecture providing a record output power of 204 W. We achieve this through multiple Raman shifts of a high power 1117nm Yb-doped fiber laser in a single pass configuration mediated at all intermediate wavelengths using a seed source comprising a low power conventional 1480nm Raman laser. The conversion efficiency from 1117nm to 1480nm is ~65% (for a quantum limited efficiency of 75%). Enhancement in efficiency is achieved by elimination of excess optical loss present in the conventional cascaded Raman resonator based architecture.
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V. R. Supradeepa, V. R. Supradeepa, Jeffrey W. Nicholson, Jeffrey W. Nicholson, Clifford E. Headley, Clifford E. Headley, Man F. Yan, Man F. Yan, Bera Palsdottir, Bera Palsdottir, Dan Jakobsen, Dan Jakobsen, } "High efficiency cascaded Raman fiber laser with output power of 204W at 1480 nm", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 860106 (22 March 2013); doi: 10.1117/12.2002620; https://doi.org/10.1117/12.2002620
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