科研之友
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摘要
We report a 31.2 W cw diode-pumped cryogenic Ho(0.4at.%), Tm(4at.%): GdVO4 laser in a dual-crystal cavity. The pumping sources are two fiber-coupled laser diodes with a fiber core diameter of 0.4 mm, both of which can supply 42 W near 802 nm. With an incident pump power of 70.3W at 802.4 nm, a cw output power of 31.2 W at 2.05 mu m is attained, corresponding to an optical-to-optical conversion efficiency of 44.4%. The M-2 factor is measured as similar to 1.3 under an output power of 20 W.
- 出版日期2012-2
- 单位哈尔滨工业大学
