High efficiency cascaded Raman fiber laser with output power of 204W at 1480 nm

V.  R. Supradeepa; Jeffrey W. Nicholson; Clifford E. Headley; Man F. Yan; Bera Palsdottir; Dan Jakobsen

doi:10.1117/12.2002620

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22 March 2013 High efficiency cascaded Raman fiber laser with output power of 204W at 1480 nm

V. R. Supradeepa, Jeffrey W. Nicholson, Clifford E. Headley, Man F. Yan, Bera Palsdottir, Dan Jakobsen

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Proceedings Volume 8601, Fiber Lasers X: Technology, Systems, and Applications; 860106 (2013) https://doi.org/10.1117/12.2002620
Event: SPIE LASE, 2013, San Francisco, California, United States

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, Jeffrey W. Nicholson, Clifford E. Headley, Man F. Yan, Bera Palsdottir, and 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); https://doi.org/10.1117/12.2002620

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