A 100 W all fiber nanosecond linearly polarized ytterbium-doped fiber amplifier

作者：Zhang K^*; Zhang D Y; Li Y; Zhu C; Zhao H; Zhou S H; Wang X F; Zhang L M

来源：Laser Physics, 2013, 23(9): 095110.

DOI：10.1088/1054-660X/23/9/095110

We report a double stage linearly polarized ytterbium-doped double clad fiber (YDCF) amplifier working at 1063.9 nm, which generates a diffraction-limited output with an average power of 102 W at a repetition rate of 100 kHz, a pulse duration of 14.9 ns, a peak power of 68 kW, a 3 dB spectral width of about 0.47 nm and a polarization extinction ratio (PER) of about 13 dB. The seed is modulated to work at a suitable Gaussian shape to restrain the pulse distortion in the fiber amplifier. To the best of our knowledge, this result represents the highest peak power with narrow line-width and excellent beam quality in linearly polarized YDCF.

• 出版日期2013-9