In this paper, we report a high power of cryogenic cooling Tm(8 at %), Ho(1.4 at %):YLF dual end pumped by two fiber coupled laser diodes at 792nm. Each pumping laser head delivers 15W power in an inner fiber core area of 0.4mm and numerical number of 0.3. The highest continuous-wave (cw) power of 10.2W at 2.051μm is attained under pumping power of 30W, corresponding to optical-optical conversion efficiency of 33%, and the slope efficiency is greater than 36%. The maximum acousto-optical Q-switched quasi-continuous wave output power is 9.2 W at pulse repetition frequency of 10kHz, corresponding to greater than 90% extraction efficiency in the full-width half-maximum pulse width of 34ns.
10-W cryogenic cooling Tm,Ho:YLF laser double-end-pumped by fiber-coupled laser diodes
High-Power Lasers and Applications III ; 2004 ; Beijing,China
Proc. SPIE ; 5627
2005-01-26
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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