26 February 2018 Next-generation fiber lasers enabled by high-performance components
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Abstract
Next-generation industrial fiber lasers enable challenging applications that cannot be addressed with legacy fiber lasers. Key features of next-generation fiber lasers include robust back-reflection protection, high power stability, wide power tunability, high-speed modulation and waveform generation, and facile field serviceability. These capabilities are enabled by high-performance components, particularly pump diodes and optical fibers, and by advanced fiber laser designs. We summarize the performance and reliability of nLIGHT diodes, fibers, and next-generation industrial fiber lasers at power levels of 500 W – 8 kW. We show back-reflection studies with up to 1 kW of back-reflected power, power-stability measurements in cw and modulated operation exhibiting sub-1% stability over a 5 – 100% power range, and high-speed modulation (100 kHz) and waveform generation with a bandwidth 20x higher than standard fiber lasers. We show results from representative applications, including cutting and welding of highly reflective metals (Cu and Al) for production of Li-ion battery modules and processing of carbon fiber reinforced polymers.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. A. V. Kliner, B. Victor, C. Rivera, G. Fanning, D. Balsley, R. L. Farrow, K. Kennedy, S. Hampton, R. Hawke, E. Soukup, M. Reynolds, A. Hodges, J. Emery, A. Brown, K. Almonte, M. Nelson, B. Foley, D. Dawson, D. M. Hemenway, W. Urbanek, M. DeVito, L. Bao, J. Koponen, K. Gross, "Next-generation fiber lasers enabled by high-performance components", Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105130S (26 February 2018); doi: 10.1117/12.2292271; https://doi.org/10.1117/12.2292271
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