Ce/sup 3+/-activated fluoride crystals as prospective active media for widely tunable ultraviolet ultrafast lasers with direct 10-ns pumping
Ce/sup 3+/-activated fluoride crystals as prospective active media for widely tunable ultraviolet ultrafast lasers with direct 10-ns pumping
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Ce/sup 3 /-激活氟化物晶体作为具有直接10纳秒泵浦的广泛可调谐紫外超快激光器的预期活性介质
DOI：
10.1109/2944.473661
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发表时间：
1995
影响因子：
4.9
通讯作者：
Y. Segawa
中科院分区：
文献类型：
--
作者：
N. Sarukura;M. Dubinskii;Zhenlin Liu;V. Semashko;A. Naumov;S. L. Korableva;R. Abdulsabirov;K. Edamatsu;Yoshiro Suzuki;T. Itoh;Y. Segawa
研究了近年来发展起来的Ce/sup 3+/离子激活的LuLiF/sub 4/（LLF）和LiCaAlF/sub 6/（LiCAF）等固体可调谐紫外激光材料的新的可能性。凭借其宽增益宽度、可靠性和高效率，它们在超短脉冲产生和放大方面具有吸引力。为了证明这一点，我们已经证明了紫外皮秒脉冲放大使用Ce：LLF。针对这类新的激光材料，我们提出了一种被动自注入种子激光直接产生短脉冲序列的方案，该方案不需要连续工作能力，也不需要外接短脉冲种子激光器。利用这种简单的方案，用标准的10 ns KrF准分子激光泵浦Ce：LLF，用常规的10 ns调Q Nd：YAG激光器的四次谐波泵浦Ce：LiCAF，直接被动地产生了紫外亚纳秒脉冲序列。>
New possibilities have been investigated for recently developed solid-state tunable ultraviolet (UV) laser materials such as Ce/sup 3+/ ion-activated LuLiF/sub 4/ (LLF) and LiCaAlF/sub 6/ (LiCAF). With their broad-gain width, demonstrated reliability, and high efficiency, they are attractive for ultrashort pulse generation and amplification. To prove that, we have demonstrated UV picosecond-pulse amplification using Ce:LLF. For such new laser materials, we proposed a passive self-injection seeding scheme for the direct generation of short-pulse trains, which does not require CW operation capability or an external short-pulse seeding laser, Using this simple scheme, a UV sub-nanosecond pulse train is directly and passively generated from Ce:LLF pumped by a standard 10-ns KrF excimer laser, and Ce:LiCAF pumped by the fourth harmonic of a conventional 10-ns Q-switched Nd:YAG laser. >