论文信息 - Average power of 1.1 kW from spectrally combined, fiber-amplified, nanosecond-pulsed sources.

Average power of 1.1 kW from spectrally combined, fiber-amplified, nanosecond-pulsed sources.

We report on spectral combination of four high repetition rate 5 ns pulsed Yb-doped fiber amplifiers at 1 microm wavelength. The output beam is spatially and temporally superposed by use of an all-reflective diffraction grating. 1.1 kW average power and 220 microJ pulse energy were extracted with a combining efficiency of 99%.

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