Wirth C, Schmidt O, Tsybin I, Schreiber T, Peschel T, Brückner F, Clausnitzer T, Limpert J, Eberhardt R, Tünnermann A, Gowin M, ten Have E, Ludewigt K, Jung M
Friedrich-Schiller University, Institute of Applied Physics, Jena, Germany.
Opt Express. 2009 Feb 2;17(3):1178-83. doi: 10.1364/oe.17.001178.
We report on beam combining of four narrow-linewidth fiber amplifier chains, running at different wavelengths and each delivering 500 W optical output power. The main amplifier stage consists of a large mode area photonic crystal fiber. The four output beams of the amplifier chains are spectrally (incoherent) combined using a polarization-independent dielectric reflective diffraction grating to form an output beam of 2 kW continuous-wave optical power with good beam quality (M(2)x = 2.0, M(2)y = 1.8).
我们报告了四条窄线宽光纤放大器链的光束合成情况，这些放大器链工作在不同波长，每条链的光输出功率均为500W。主放大器阶段由大模场面积光子晶体光纤构成。利用一个偏振无关的介质反射衍射光栅对放大器链的四条输出光束进行光谱（非相干）合成，以形成一束连续波光功率为2kW且光束质量良好（M(2)x = 2.0，M(2)y = 1.8）的输出光束。
