Red and orange laser operation of Pr:KYF4 pumped by a Nd:YAG/LBO laser at 469.1 nm and a InGaN laser diode at 444 nm.
Red and orange laser operation of Pr:KYF4 pumped by a Nd:YAG/LBO laser at 469.1 nm and a InGaN laser diode at 444 nm.
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DOI：
10.1364/oe.21.005567
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发表时间：
2013-03
期刊：
影响因子：
3.8
通讯作者：
B. Xu;F. Starecki;D. Pabœuf;P. Camy;J. Doualan;Z. Cai;A. Braud;R. Moncorgé;P. Goldner;F. Bretenaker
中科院分区：
文献类型：
--
作者：
B. Xu;F. Starecki;D. Pabœuf;P. Camy;J. Doualan;Z. Cai;A. Braud;R. Moncorgé;P. Goldner;F. Bretenaker
报道了掺Pr（3+）的KYF（4）单晶在红光和橙子光区的基本发光特性和连续激光运转。泵浦源是一个特别开发的，紧凑的，稍微可调谐和腔内倍频二极管泵浦的Nd：YAG激光器提供了一个连续的输出功率高达约1.4 W的469.1 nm左右。在该泵浦波长下，在约642.3和605.5 nm处获得红色和橙子激光发射，最大输出功率分别为11.3和1 mW，相对于吸收的泵浦功率，相关的斜率效率分别为9.3%和3.4%。为了比较，Pr：KYF（4）晶体也由在444 nm附近工作的InGaN蓝色激光二极管泵浦。在这种情况下，获得了相同的红色和橙子激光器，但最大输出功率分别为7.8和2 mW，相关的斜率效率分别为7和5.8%。两种激光器的波长调谐通过稍微倾斜晶体来演示。首次报道了橙子激光运转和激光波长调谐。
We report the basic luminescence properties and the continuous-wave (CW) laser operation of a Pr(3+)-doped KYF(4) single crystal in the Red and Orange spectral regions by using a new pumping scheme. The pump source is an especially developed, compact, slightly tunable and intra-cavity frequency-doubled diode-pumped Nd:YAG laser delivering a CW output power up to about 1.4 W around 469.1 nm. At this pump wavelength, red and orange laser emissions are obtained at about 642.3 and 605.5 nm, with maximum output powers of 11.3 and 1 mW and associated slope efficiencies of 9.3% and 3.4%, with respect to absorbed pump powers, respectively. For comparison, the Pr:KYF(4) crystal is also pumped by a InGaN blue laser diode operating around 444 nm. In this case, the same red and orange lasers are obtained, but with maximum output powers of 7.8 and 2 mW and the associated slope efficiencies of 7 and 5.8%, respectively. Wavelength tuning for the two lasers is demonstrated by slightly tilting the crystal. Orange laser operation and laser wavelength tuning are reported for the first time.