Uberna Radoslaw, Bratcher Andrew, Tiemann Bruce G
Lockheed Martin Coherent Technologies, 135 South Taylor Avenue, Louisville, Colorado 80027, USA.
Appl Opt. 2010 Dec 10;49(35):6762-5. doi: 10.1364/AO.49.006762.
A new coherent polarization beam combination (CPBC) architecture was employed to combine four amplified beams and produce over 25 W of coherent output with 94% efficiency and nearly diffraction-limited beam quality. The individual beams were produced by a fiber master oscillator power amplifier system and their phases were controlled and locked using servo-controlled phase modulators. The CPBC approach relies on a coherent superposition of orthogonal polarization states and allows the combination of an arbitrary number of beams with arbitrary power ratios.
采用了一种新型的相干偏振光束合成（CPBC）架构来组合四束放大光束，并产生超过25瓦的相干输出，效率达94%，且光束质量接近衍射极限。各光束由光纤主振荡器功率放大器系统产生，并使用伺服控制的相位调制器来控制和锁定其相位。CPBC方法依赖于正交偏振态的相干叠加，并允许以任意功率比组合任意数量的光束。
