A d/D~0.68 anti-resonant hollow-core fiber delivers 20 W picosecond pulses with higher mode purity and straighter micromachining lines than a d/D~0.5 fiber, approaching free-space quality.
Kilowatt-average-power single-mode laser light transmission over kilometre-scale hollow-core fibre,
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Flexible delivery of high-power picosecond laser in purely-single optical mode of anti-resonant hollow-core fiber for micromachining
A d/D~0.68 anti-resonant hollow-core fiber delivers 20 W picosecond pulses with higher mode purity and straighter micromachining lines than a d/D~0.5 fiber, approaching free-space quality.