论文信息 - All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier

All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier

A four-stage all-fiber single-frequency single-mode continuous-wave (cw) master- oscillator power-amplifier (MOPA) at 1083 nm is presented. Small mode area (SMA) and large mode area (LMA) amplifier stages are mode matched with a fiber mode converter (MC) and the signal and pumps are combined with tapered fiber bundles (TFBs). The final power stage uses a LMA Yb doped SBS-suppressing fiber. A single-frequency output power of 194 W is demonstrated with optical net and slope efficiencies of 68% and 80%, respectively.

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