水分子对2 mm波段的红外激光有很强的吸收,中心波长为2.0 mm的连续铥(Tm)激光器非常适合应用在生物组织切割和疼痛神经刺激研究领域。这个波段的激光对皮肤组织的穿透深度浅,在普通石英光纤中有良好的传输特性,而且对人眼安全。介绍了中心波长为2 mm的连续Tm激光器工作原理,分析了皮肤组织的光热数学模型;将2 mm Tm激光器与传统的激光器进行对比,论述了其在外科手术临床、疼痛神经刺激研究领域的广阔前景。
2021-03-05 09:08:32
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电信集成商
Open API Telco Integrator实施TM Forum产品订购管理规范，并提供与Siebel和Salesforce Vlocity等订单协商系统的一致交互。 将来的版本将实现其他TM论坛业务运营规范。
该资产还为使用Telco Pack将CSP工作负载移至云的现有客户提供了一个框架。
2021-02-28 10:04:14
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A periodically poled lithium niobate (PPLN) optical parametric generator (OPG) pumped by a laser diode (LD)-pumped Q-switched Tm,Ho:GdVO4 laser operated at 2.048 \mum with pump pulse of 25 ns and repetition rate of 10 kHz is reported. A continuous tunable middle-infrared (mid-IR) spectrum of 3.88~4.34 \mum is obtained by changing the crystal temperature from 50 to 124 oC. When the incident pump power is 3 W, the total OPG output power is 95 mW, corresponding to optical conversion efficiency of 3
2021-02-26 14:07:31
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A high repetition rate Tm:Ho:LuLiF master-oscillator and polarization-maintaining (PM) Tm-doped fiber power-amplifier system is presented. A 11.3-kHz, 0.4-nm line width, 0.89-W Tm:Ho:LuLiF seed laser is developed. Using a two-stage PM Tm-doped fiber power amplifier system, 32.4-W output power is obtained with 0.4-nm line width at a central wavelength of 2058.5 nm, corresponding to 0.66-W seed laser. The laser spectrum and pulse profile are measured.
2021-02-26 09:06:26
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S7-1500分布式IO上用的编码器模块，安装在ET200SP分布式IO上，可以接伺服电机编码器。
2021-02-23 15:03:21
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A diode-pumped passively Q-switched Tm,Ho:YAP laser with a single-walled carbon nanotube
2021-02-10 12:03:58
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分析了熔体提拉法生长Ho∶Tm∶YLF晶体过程中熔体表面漂浮物的产生原因，以及晶体中散射颗粒、孪晶和开裂的成因。通过精心设计对称性温场，并调整温场、优化生长工艺参数，有效消除了晶体中的散射颗粒，克服了晶体开裂。采取在生长气氛中加入一定量CF4等工艺措施有效减少了熔体表面上的氟氧化物漂浮物，克服了漂浮物对生长晶体的影响，生长出了尺寸为(25~30)mm×(100~120)mm的高品质HoTmYLF晶体。HoTmYLF晶体激光性能测试表明，在LD双端抽运条件下获得了超过10 W的2.05 μm激光输出，激光斜率效率达到41.2%，光光转换效率达到36.4%。
2021-02-09 14:06:09
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We report a monolithic Tm:YLF micro laser in this Letter. In order to improve the relaxation oscillation of the laser, both ends of the crystal are coated, making the Tm:YLF crystal itself a resonant cavity. The micro laser is pumped by a 792 nm laser diode operated in the continuous wave (CW) mode.
2021-02-07 16:03:03
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