19 February 2009 High-power phase locking of a fiber amplifier array
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Abstract
We report high power phase locked fiber amplifier array using the Self-Synchronous Locking of Optical Coherence by Single-detector Electronic-frequency Tagging technique. We report the first experimental results for a five element amplifier array with a total locked power of more than 725-W. We will report on experimental measurements of the phase fluctuations versus time when the control loop is closed. The rms phase error was measured to be λ/60. Recent results will be reported. To the best of the authors' knowledge this is the highest fiber laser power to be coherently combined.
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T. M. Shay, T. M. Shay, J. T. Baker, J. T. Baker, A. D. Sanchez, A. D. Sanchez, C. A. Robin, C. A. Robin, C. L. Vergien, C. L. Vergien, C. Zeringue, C. Zeringue, D. Gallant, D. Gallant, Chunte A. Lu, Chunte A. Lu, Benjamin Pulford, Benjamin Pulford, T. J. Bronder, T. J. Bronder, Arthur Lucero, Arthur Lucero, } "High-power phase locking of a fiber amplifier array", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71951M (19 February 2009); doi: 10.1117/12.809416; https://doi.org/10.1117/12.809416
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