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High power upconversion lasing at 810 nm, in Tm:ZBLAN fibre

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3 Author(s)
M. L. Dennis ; Naval Res. Lab., Washington, DC, USA ; J. W. Dixon ; I. Aggarwal

The Letter reports upconversion lasing at 810 nm in thulium doped fluorozirconate fibre pumped by an Nd:YAG laser at 1064 nm, with an output power greater than 1.2 W and slope efficiency of 37%. Tunability over the range 803-816 nm is demonstrated. This is the highest power and most efficient upconversion laser reported to date in any gain medium.

Published in:

Electronics Letters  (Volume:30 ,  Issue: 2 )