Abstract
Holmium doped radially polarised lasers operating in the 2.1 µm spectral region are of great interest as they provide benefits of operation in the atmospheric transmission window (2.1-2.25 µm), absorption in transparent polymers, as well as the materials processing benefits that are beginning to be realised from utilising select higher order modes [1]. We report on the development of a 50W CW radially polarised Ho:YAG laser operating at 2090nm.
© 2019 IEEE
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