Coherent combination of high power fiber amplifiers in a two-dimensional re-imaging waveguide
2010
Four actively phase-locked beams produced by fiber amplifiers in a master oscillator power amplifier (MOPA) configuration were coherently combined in a glass capillary re-imaging waveguide producing more than 100 W of coherent output with 80% combining efficiency and excellent beam quality. The beam combiner components maintained a temperature below 30°C with no external cooling at >100 W of combined power.
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