共查询到20条相似文献,搜索用时 625 毫秒
1.
采用非临界相位匹配切割,尺寸5mm×5mm×20mm的KTA作为非线性光学晶体,进行了基于半导体激光端面抽运Nd:YLF/KTA的内腔式连续光学参量振荡激光研究,获得了中红外3.5μm波段的连续激光输出。为了提高连续光参量振荡腔内信号光的功率密度,降低激光输出阈值,采用对信号光高反射的单谐振腔结构进行激光实验。在8.35W的抽运功率下,分别获得了335mW和110mW的3440nm和1505nm的激光输出,对应的总转换效率达到了5.6%。该实验研究表明半导体激光端面抽运的内腔式KTA连续光学参量振荡也能获得高效的中红外激光输出。 相似文献
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By using a pump recycling configuration, we presented a high efficient diode-pumped Tm:YLF laser with a volume Bragg grating.
When the incident pump power was 33.1 W, a maximum output power of 11.1 W at 1907.8 nm with full width at half maximum of
0.6 nm was obtained. The slope efficiency with respect to the incident pump power was 44.8%, and the optical-to-optical efficiency
was 33.5%. In addition, the VBG-based Tm:YLF laser was employed as a pumping source of Ho:YAG laser, the maximum output power
of 4.7 W with a slope efficiency of 67.0% was obtained, corresponding to Tm-to-Ho conversion efficiency of 51.6%. 相似文献
4.
We report a laser architecture to obtain continuous-wave blue radiation at 488 nm. A 808 nm diodepumped the Nd:YVO4 crystal emitting at 914 nm. A part of the pump power was then absorbed by the Nd:YVO4 crystal. The remaining was used to pump the Nd:YLF crystal emitting at 1047 nm. Intracavity sum-frequency mixing at 914 and
1047 nm was then realized in a LBO crystal to reach the blue radiation. We obtained a continuous-wave output power of 514
mW at 488 nm with a pump laser diode emitting 19.6 W at 808 nm. 相似文献
5.
We report a continuous-wave (CW) green laser emission by sum-frequency mixing in Nd:YVO4 and Nd:YLF crystals. Using type-II critical phase-matching (CPM) KTP crystal, a green laser at 539 nm is obtained by 914
and 1313 nm intracavity sum-frequency mixing. The maximum laser output power of 388 mW is obtained when an incident pump laser
of 18.2 W is used. At the output power level of 388 mW, the output stability is better than 4.6%. 相似文献
6.
We report a continuous-wave (CW) blue laser emission by sum-frequency mixing in Nd:GdVO4 and Nd:YLF crystals. Using type-I critical phase-matching (CPM) LBO crystal, a blue laser at 490 nm is obtained by 1063 and
908 nm intracavity sum-frequency mixing. The maximum laser output power of 118 mW is obtained when an incident pump laser
of 18.2 W is used. At the output power level of 118 mW, the output stability is better than 4.2%. 相似文献
7.
We report a continuous-wave (CW) yellow laser emission by sum-frequency mixing in two Nd:LuVO4 and Nd:YLF crystals. Using type-I critical phase-matching (CPM) LBO crystal, a yellow laser at 590 nm is obtained by 1066
and 1321 nm intracavity sum-frequency mixing. The maximum laser output power of 223 mW is obtained when an incident pump laser
of 18.2 W is used. At the output power level of 223 mW, the output stability is better than 4.5%. 相似文献
8.
We report a continuous-wave (CW) green laser emission by sum-frequency mixing in Nd:GdVO4 and Nd:YLF crystals. Using type-I critical phase-matching (CPM) LBO crystal, a green laser at 538 nm is obtained by 912 and
1313 nm intracavity sum-frequency mixing. The maximum output power of 185 mW is obtained when an incident pump laser of 18.2
W is used. At the output power level of 185 mW, the output stability is better than 3.3%. 相似文献
9.
Y. Wei S. Xu C. H. Huang F. J. Zhuang W. D. Chen L. X. Huang X. L. Wang G. Zhang 《Laser Physics》2012,22(6):1029-1032
We presented a compact and efficient diode-end-pumped 1313 nm Nd:YLF laser with an effective pump system and no additional insertion loss. The different thermal lensing effects along the ?? and ?? polarizations in an a-cut Nd:YLF crystal were investigated. 6.2 W output power of the polarized 1313 nm laser was obtained at the absorbed pump power of 17.5 W, corresponding to the optical-optical efficiency of 35% and the slope efficiency of 41%. 相似文献
10.
《中国光学快报(英文版)》2021,(9)
We report on diode-pumped continuous-wave Pr-doped yttrium lithium fluoride(Pr:YLF) laser and its frequency doubling to320 nm. The maximum output power of the 640 nm fundamental wave reached 3.44 W with a slope efficiency of about 48.3%.Using a type-I phase-matched lithium triborate(LBO) crystal as a frequency doubler, we have achieved 320 nm ultraviolet radiation with a maximum output power of 1.01 W, which is the highest power ever reported under diode pumping, to the best of our knowledge. 相似文献
11.
报道了采用半导体二极管抽运的掺钕钨酸钇钾[Nd3+KY(WO4)2](简称NdKYW)蓝绿光激光器。腔内倍频采用了Ⅰ类临界相位匹配LBO(LiB3O5)晶体作为倍频器,阈值抽运功率为400 mW,在抽运功率为2 W时获得了200 mW的530 nm连续激光输出,其倍频光的光-光转换效率为10%。 相似文献
12.
A high power continuous-wave deep blue laser at 447 nm is obtained by using a doubly cavity and a type H critical phase matching KTP crystal for intracavity sum-frequency-mixing. With the incident pump power of 240 W for the Nd:YAP crystal and 120 W for the other Nd:YAP crystal, the deep blue laser output of 5.7 W at 447 nm with near fundamental mode is obtained, and the beam quality M^2 value equals 2.53 in both horizontal and vertical directions at the maximum output power. The power stability is better than 2% at the maximum output power during half an hour. The experimental results show that the intracavity sum-frequency mixing by doubly resonant is an effective method for high power blue laser. 相似文献
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报道了激光二极管端面抽运Tm,Ho:YLF固体激光器的输出特性.室温下,选用不同透过率的输出耦合镜进行了实验研究,确定了最佳输出耦合镜透过率为2%. 利用小孔扫描的方法,得到了激光远场的光强分布,证明激光为基横模输出,并且给出了热焦距随抽运功率的变化关系.通过在激光谐振腔内插入两个固体Fabry-Perot标准具的方法,获得了2μm激光的单频输出,阈值功率为250mW,在抽运功率为2.8W时,单频输出功率为118mW.此单频激光器可用作激光振荡器和激光放大器的种子源.
关键词:
激光光学
激光二极管
Tm
Ho:YLF固体激光器
单频 相似文献
15.
Yan-Fei Lü Xi-He Zhang Jing Xia Chang-Li Li Zhen-Ming Zhao Zhi-Teng Liu 《Optics Communications》2010,283(15):3067-3069
We present a laser architecture to obtain continuous-wave blue radiation at 489 nm. An 809 nm diode-pumped the Nd:LuVO4 crystal emitting at 916 nm. A part of the pump power was then absorbed by the Nd:LuVO4 crystal. The remaining was used to pump the Nd:YLiF4 (Nd:YLF) crystal emitting at 1047 nm. Intracavity sum-frequency mixing at 916 and 1047 nm was then realized in a LiB3O5 (LBO) crystal to reach the blue radiation. We obtained a continuous-wave output power of 425 mW at 489 nm with a pump laser diode emitting 18.4 W at 809 nm. 相似文献
16.
Performance of a liquid-nitrogen-cooled CW Tm, Ho:YLF laser 总被引:2,自引:0,他引:2
A liquid-nitrogen-cooled Tm, Ho:YLF laser is constructed with a 10-mm-long Tm(6%) and Ho(0.5%) co-doped yttrium lithium fluoride crystal pumped by a laser diode operating at 792 nm. The laser outputpower is improved by cooling the Tm, Ho:YLF crystal from 300 to 77 K. When the crystal is kept at 77K, the laser threshold pump power is 230 mW, the slope efficiency is 27.4%, and the maximum optical-to-optical efficiency is 19.9%. At the same time, the relation between the input power and the output powerat different temperatures is obtained. 相似文献
17.
We present a laser architecture to obtain continuous-wave blue radiation at 488 nm. A 808 nm diode-pumped the Nd:YVO4 crystal emitting at 914 nm. A part of the pump power was then absorbed by the Nd:YVO4 crystal. The remaining was used to pump the Nd:YLiF4 (Nd:YLF) crystal emitting at 1047 nm. Intracavity sum-frequency mixing at 914 and 1047 nm was then realized in a BiB3O6 (BiBO) crystal to reach the blue radiation. We obtained a continuous-wave output power of 339 mW at 488 nm with a pump laser diode emitting 18.3 W at 808 nm. 相似文献
18.
高效率LD端面抽运准连续355 nm激光器 总被引:1,自引:1,他引:0
报道了一台激光二极管(LD)端面抽运Nd:YVO4晶体腔内倍频和腔外和频相结合的声光调Q准连续355 nm 紫外激光器。采用LD端面抽运双侧翼键合YVO4基质的Nd:YVO4晶体,在腔内置入Ⅰ类相位匹配的LiB3O5(LBO)晶体进行倍频实现1 064 nm和532 nm双波长准连续激光输出,通过消色差透镜将双波长激光聚焦耦合到Ⅱ类相位匹配的LBO 晶体中进行和频,并采用双向和频光路,获得了高效率、高光束质量、高重复频率的准连续355 nm 紫外激光输出。在抽运功率为28.6 W、重复频率为20 kHz时,355 nm激光最大输出功率4.2 W,脉宽为20.6 ns,光-光转换效率为14.7%,激光器光束质量因子Mx2和My2分别为1.29和1.23。 相似文献
19.
Y. B. Zhang Y. X. Zheng Y. H. Jia Y. Yao D. P. Qu Q. Zheng L. Zhao 《Laser Physics》2010,20(7):1580-1584
An efficient and compact green laser at 526 nm generated by intracavity frequency doubling of a continuous wave (CW) laser
operation of a diode pumped Nd:YLF laser at 1053 nm under the condition of suppression the high gain transition at 1047 nm.
With 19.5 W diode pump power and a frequency doubling crystal LBO, as high as 2.15 W of CW output power at 526 nm is achieved,
corresponding to an optical-to-optical conversion efficiency of 11.2% and the output power stability in 8 h is better than
2.87%. To the best of our knowledge, this it the highest watt-level laser at 526 nm generated by intracavity frequency doubling
of a diode pumped Nd:YLF laser at 1053 nm. 相似文献
20.
LD端面泵浦腔内倍频Yb:YAG绿光激光器 总被引:1,自引:0,他引:1
报道了一种激光二极管(LD)端面泵浦10at%掺杂Yb:YAG激光晶体(4×4×1mm)和Ⅰ类临界相位匹配LBO的腔内倍频全固态绿光激光器.为了克服"绿光问题",采用了两个激光二极管偏振耦合系统.在双路泵浦功率为1.2W时,获得最高功率为40mW525nm的连续基模激光输出.在腔内插入Cr4+:YAG饱和吸收体被动调Q,在泵浦功率为1.2W时,可以获得平均功率为5.2mW,脉冲重复频率为2.44kHz,脉冲宽度为51.5ns,峰值功率为41.7W的515nm脉冲激光输出.输出波长发生变化,而且515nm脉冲激光输出的阈值仅为728mW. 相似文献