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通过优化平-凹-平三镜折叠腔结构设计,利用大功率半导体激光器侧面抽运、Ⅱ类相位匹配KTP晶体腔内倍频,获得高效高功率连续绿色激光输出.当抽运电流约为36 A时,得到最高36.6 W的连续绿光激光输出,对应的光—光转换效率为8.71%.在输出功率33 W时测量激光功率稳定性,其功率不稳定度为0.27%.用刀口法测量了激光器高输出功率时的光束质量,光束质量因子小于8.对高功率抽运情况下三镜折叠腔的像散补偿、失调灵敏度和基模在腔内分布情况做了数值模拟.
关键词:
侧面抽运
腔内倍频
连续波 相似文献
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通过优化双棒串接直腔结构设计,利用大功率LD侧面抽运、声光Q开关、Ⅱ类相位匹配S-KTP内腔倍频获得高效大功率绿色激光输出.当抽运电流为45 A、重复频率为15 kHz时,激光平均功率为132 W,光—光转换效率为132%,脉宽约为120 ns.在输出130 W时,测得1 h功率不稳定度小于05%,光束质量因子M2为67.对高功率抽运情况下激光介质的热透镜效应以及谐振腔稳定运转工作区域也进行了理论分析和实验研究.
关键词:
绿光激光器
腔内倍频
声光调Q
LD侧面抽运 相似文献
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Efficient Nanosecond Dual-Signal Optical Parametric Generator with a Periodically Phase Reversed PPMgLN 下载免费PDF全文
We report an efficient nanosecond optical parametric generator (OPG) with a periodically-phase-reversed periodically poled MgO:LINbO3 (ppr-PPMgLN), which produces two pairs of signal and idler waves. The OPG is pumped by a 1.064μm Q-switched Nd:YVO4 laser. When the repetition rate is set at 10kHz, the maximum average total output power of 570mW is achieved, including 410mW of dual-signal radiations and 160mW of dual-idler radiations. The total conversion efficiency is 32.5%. The tunable dual-signal wavelengths in the range of 1.474-1.518μm and 1.490-1.539μm and the dual-idler of 3.826-3.558 μm and 3. 726-3.451 μm are obtained by changing the crystal temperature from 30℃ to 200℃. 相似文献
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Continuous-wave green laser with a maximum power of 34 W has been obtained by intracavity frequency doubling with KTP in diode-side-pumped Nd:YAG. The Nd:YAG/KTP green laser has a simple three- mirror V-fold cavity structure. The optical-to-optical conversion efficiency is 9.5%. The instability of the laser is measured when the output powers are near 16, 21, 30, and 34 W after the beam is filtered. At the maximum output power, the M^2 factor is measured to be 8. 相似文献
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A continuous wave (CW) Nd:YAG infrared laser at 1319 nm is reported in this paper. The energy level of 1319-nm wave was analyzed. The repression of 1064-nm lasing and enhancement of 1319-nm output power were discussed. Mirror coating and cavity structure were studied and a maximum CW output power of 43 W at 1319 nm was achieved in experiments. 相似文献
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1.本项发明的意义 本项发明属于激光器件技术领域.人们利用它可以获得高平均功率的绿色激光(0.532μm).该器件应用准连续泵浦方式于内腔倍频激光器中,使在输入相同的电功率情况下,绿光输出功率较连续泵浦时提高2—3倍,且激光棒的热焦距加长,从而使激光束发散角比连续泵浦时减小1/3。脉冲宽度变窄一倍。获得较好的光束质量;采用了带有定向装置水冷系统的KTP倍频器,对激光谐振腔结构及参数进行了最佳化设计,获得了34.2W的绿光输出,居世界领先水平.这种器件对于许多应用具有极大的意义.在泵浦染料激光器、海洋开发、激光医疗、激光微加工、激… 相似文献
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