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Article Abstract
We have improved significantly the brightness of cryogenic Ho:YAG, reporting up to 65 W output power with a beam quality of M <1.3 and a slope efficiency of 71%. The laser emission was ~2 nm wide and centered at 2097.5 nm. This result demonstrates the scalability of both the narrow-line thulium fibre pump laser and the cryogenic laser head.
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| http://dx.doi.org/10.1364/OE.25.031889 | DOI Listing |
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