All-fiberized master oscillator power amplifier structured narrow-linewidth nanosecond pulsed laser with 505 W average power

作者：Su, R T^*; Wang, X L; Zhou, P; Xu, X J

来源：Laser Physics Letters, 2013, 10(1): 015105.

DOI：10.1088/1612-2011/10/1/015105

We report an all-fiberized narrow-linewidth nanosecond pulsed laser in the monolithic master oscillator power amplifier (MOPA) configuration. The pulsed seed was obtained by modulating a continuous wave (CW) laser using an electro-optic modulator (EOM). For similar to 6 ns pulses with a central wavelength of similar to 1064 nm we obtained an average power of 505 W, corresponding to peak power of 7.9 kW. No stimulated Brillouin scattering (SBS) was observed when the laser operated at its maximal output power. The maximal output power is only limited by the available pump diodes. The large-mode area of the gain fiber, the short pulse width (similar to 6 ns) and dual-single-frequency of the high-power pulses prevents the onset of SBS in the main-amplifier.

• 出版日期2013-1
• 单位中国人民解放军国防科学技术大学