15 February 2012 Integrated 100-W polarized narrow linewidth thulium fiber MOPA system
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Abstract
We report on a Tm:fiber master oscillator power amplifier system producing 100 W output power, with >10 dB polarization extinction ratio and diffraction-limited beam quality. To our knowledge, this is the highest polarized output power from an integrated Tm:fiber laser. The oscillator uses polarization maintaining (PM) single mode fiber with 10/130 μm core/cladding diameters, and the amplifier uses large mode area PM fiber with 25/400 μm core/cladding diameters. The oscillator and amplifier are pumped using 793 nm diodes spliced with pump combiners, and the oscillator is spliced to the amplifier via a mode field adaptor.
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Lawrence Shah, Lawrence Shah, R. Andrew Sims, R. Andrew Sims, Pankaj Kadwani, Pankaj Kadwani, Christina C. C. Willis, Christina C. C. Willis, Joshua B. Bradford, Joshua B. Bradford, Zachary Roth, Zachary Roth, Aaron Pung, Aaron Pung, Menelaos Poutous, Menelaos Poutous, Eric G. Johnson, Eric G. Johnson, Martin Richardson, Martin Richardson, } "Integrated 100-W polarized narrow linewidth thulium fiber MOPA system", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82371M (15 February 2012); doi: 10.1117/12.909292; https://doi.org/10.1117/12.909292
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