Antiresonant hollow-core fibers (AR-HCFs) have opened up exciting possibilities for high-energy and high-power laser delivery, thanks to their exceptionally low nonlinearities and high damage thresholds. Here, we discuss our recent work on high power laser transmission in AR-HCFs. We use a 5 ring nested AR-HCF our experiments, which provides robust single-mode performance with M2 of 1.045. This effectively mitigates nonlinear effects, as evidenced by the absence of measurable nonlinear distortions in the delivered laser beam. Our results could pave the way for high-brightness narrow-linewidth fiber delivery systems for a wide range of applications.
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Rodrigo Amezcua‐Correa (2024) studied this question.
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