Runheng Xiao

Dec 12, 2023 | opg.optica.org | Tao Luo |Runheng Xiao |Nengli Dai |Jinyan Li

In this work, a record output power of 4.6 kW linearly polarized and narrow-linewidth fiber amplifier based on an optimized fiber oscillator laser (FOL) seed was realized by employing a homemade polarization-maintaining Yb-doped fiber (PMYDF), corresponding to a slope efficiency of 79.5% and a 3 dB linewidth of 0.3452 nm.