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2 October 2008 Latest developments in 790nm-pumped Tm-doped fibre laser systems for DIRCM applications
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790nm-pumped Tm-doped fibre lasers provide a number of distinct benefits for integration into next generation DIRCM systems. Incorporation of Tm-doped fibre technology into mid-IR laser systems has been demonstrated in two main architectures to date; in early works the fibre laser was used as a low quantum defect pump source for Q-switched solidstate holmium laser which was subsequently shifted to the mid-IR using a ZnGeP2 OPO [1] and more recently, a pulsed fibre laser systems was used for directly pumping the OPO [2]. He we present two fibre laser systems for integration into DIRCM systems. Firstly we present a 70W MOPA system (pump power limited) operating at 1908nm with 53% slope efficiency from the amplifier stage for pumping Ho:YAG. Secondly we present a pulsed fibre laser system producing over 4kW peak power at 1910nm using all single-mode fibres.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Frith, T. McComb, B. Samson, W. Torruellas, A. Carter, J. Farroni, K. Farley, and K. Tankala "Latest developments in 790nm-pumped Tm-doped fibre laser systems for DIRCM applications", Proc. SPIE 7115, Technologies for Optical Countermeasures V, 711507 (2 October 2008);


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