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arXiv · 1301.6185

A High Efficiency Architecture for Cascaded Raman Fiber Lasers

V. R. Supradeepa·Jeffrey W. Nichsolson·Clifford E. Headley·Man F. Yan·Bera Palsdottir·Dan Jakobsen
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Abstract

We demonstrate a new high efficiency architecture for cascaded Raman fiber lasers based on a single pass cascaded amplifier configuration. Conversion is seeded at all intermediate Stokes wavelengths using a multi-wavelength seed source. A lower power Raman laser based on the conventional cascaded Raman resonator architecture provides a convenient seed source providing all the necessary wavelengths simultaneously. In this work we demonstrate a 1480nm laser pumped by an 1117nm Yb-doped fiber laser with maximum output power of 204W and conversion efficiency of 65% (quantum-limited efficiency is ~75%). We believe both the output power and conversion efficiency (relative to quantum-limited efficiency) are the highest reported for cascaded Raman fiber lasers.

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V. R. Supradeepa, Jeffrey W. Nichsolson, Clifford E. Headley, Man F. Yan, Bera Palsdottir, Dan Jakobsen. 2013-03-14. A High Efficiency Architecture for Cascaded Raman Fiber Lasers. https://doi.org/10.1364/oe.21.007148

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