A High Efficiency Architecture for Cascaded Raman Fiber Lasers

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.

9 pages, 7 figures, replaced with an updated version

Cited by in corpus (4)

• Power scaling of high efficiency 1.5micron cascaded Raman fiber lasers
• High power, fixed and tunable wavelength, Grating-free Cascaded Raman fiber Lasers
• An All Passive Architecture for High Efficiency Cascaded Raman Conversion
• Simultaneous Raman based Power Combining and Wavelength Conversion of High-power Fiber Lasers