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研制出国内第一台LD泵浦的连续NMLN激光器。阈值泵浦功率为10.4mW,最大输出功率达0.4mW,斜效率达2%。 相似文献
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研制出国内第一台用LD泵浦的NYAB自倍频激光器和双波长激光器。采用直接耦合方式进行端面泵浦。自倍频激光器产生0.531μm的绿色激光,基横模运转,阈值泵浦功率为14.31mW,输出功率达2.2mW,斜效率达2.1%。双波长激光器同时产生0.531μm的绿色激光和1.062μm的近红外激光,基横模运转,阈值泵涌功率力14.81mW,输出功率达9.2mW,斜效率达7%。 相似文献
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研制出国内第一台微机控制自动调谐的LD泵浦NYAB自倍频激光器。利用计算机控制激光器输出镜作二维扫描,精度达10~(-2)度的量级。激光器产生0.531μm的线偏振绿色激光,基横模运转,阈值泵浦功率为14mW,输出功率达3.6mW,斜效率达3%,偏振度大于99.8%。 相似文献
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研制成LD泵浦的YLF激光器得到连续1.047μm近红外激光,阈值泵浦功率是19mW,输出功率达5.2mW,斜效率为5.1%;研制成YLF-MgO:LN腔内倍频激光器,得到连续0.524μm绿色倍频光输出,阈值泵浦功率为34mW,输出功率为0.46mW,斜效率为0.5%。对Nd:YLF晶体的受激态吸收和因其产生的荧光进行了观察研究,指出其可能的应用。本文简要报导实验方法和实验结果。 相似文献
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Y.F. Chen S.C. Wang C.F. Kao T.M. Huang 《Photonics Technology Letters, IEEE》1996,8(10):1313-1315
The optimum pump condition for a fiber-coupled diode end-pumped Nd:YAl/sub 3/(BO/sub 3/)/sub 4/ laser has been determined by including the effect of pump beam quality into the analysis. Under the optimum pump condition, 67 mW of the green laser output corresponding to a conversion efficiency 10.3% was obtained from a self frequency-doubling NYAB crystal when pumped by a 650 mW fiber-coupled laser diode. The prospect of higher conversion efficiency is also discussed. 相似文献
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CW laser operation in the 2.7-2.8 mu m region has been observed in Er/sup 3+/ doped fluorozircoaluminate glass fibres by diode laser pumping at 0.8 mu m. An absorbed threshold power of 10 mW and an output laser power of 2.1 mW with a slope efficiency of 8% were obtained.<> 相似文献
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This paper presents the experimental results of the monolithic Tm:YAG nonplanar ring oscillator (NPRO) pumped by two kinds of laser diodes with different pumping spot sizes. By longitudinal pumping in continuous-wave operation, a single-frequency output power of 404 mW was obtained at room temperature,with a slope efficiency of 48.2%. The influences of the pumping spot sizes on the beam properties were also discussed. 相似文献
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采用垂直生长法制备的氧化石墨烯(Graphene oxide, GO)作为可饱和吸收体,利用典型“X”型折叠腔在全固态Tm:Lu3Al5O12(Tm:LuAG)陶瓷激光器中实现了调Q锁模运转。以790 nm激光二极管(Laser diode, LD)作为泵浦源,当泵浦功率大于8 W时,激光器进入稳定的调Q锁模状态。当输出镜透过率为5%时,连续光最高输出功率为714 mW,斜效率为4.94%。当泵浦达到16 W时,激光器最大输出功率为200 mW , 光谱中心波长为2024 nm,脉冲宽度约为695 ps,对应的锁模脉冲重复频率为108.7 MHz,调Q包络中锁模脉冲的调制深度接近100%。该2 μm超短脉冲激光器在生物医学和激光通讯等领域具有非常重要的应用。 相似文献
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Ehrenreich T. Zhdanov B. Takekoshi T. Phipps S.P. Knize R.J. 《Electronics letters》2005,41(7):415-416
A continuous-wave caesium vapour laser with diode laser pumping is demonstrated. An output power of more than 130 mW was achieved using a 400 mW pump giving an overall optical efficiency better than 32%. It is expected to increase the laser efficiency with improvement to the experimental setup. 相似文献
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Upconversion lasing in Er:YAlO3 is reported. Laser emission was produced using both sequential two-step pumping and cross-relaxation energy transfer. In addition, photon avalanche upconversion pumping was demonstrated. Selection among these pumping mechanisms is determined by the pump wavelength, and laser operation was obtained with excitation between 785 nm and 840 nm. The highest laser output power was achieved at 34°K, where 918 mW of pump power at 807 nm produced 121 mW of TEM00 emission. The optical conversion efficiency was 13%. Repetitively Q-switched operation is reported, and the temporal- and temperature-dependence of the laser output is discussed 相似文献