1) low power semiconductor laser
低功率半导体激光
1.
Effects of low power semiconductor laser extravascular irradiation of index of blood and hyperlipidemia;
低功率半导体激光血管外照射对血脂、血液流变学指标的影响
2) high power diode laser
大功率半导体激光器
1.
Research and Design on the Control System for High Power Diode Laser;
大功率半导体激光器控制系统的研制
2.
Laser transformation hardening was carried out on U74 rail steel by a self-developed high power diode laser.
使用自制的大功率半导体激光器对U74轨钢进行了相变硬化。
3.
Based on the characteristics of beam propagation of laser diode array(LDA),high power diode laser was coupled to a wedge-shaped fiber array.
首先从半导体激光器列阵的发光特性出发,利用楔形光纤排对大功率半导体激光器列阵光束进行耦合,最后得到一只含有19个纤芯,每个纤芯为200μm,数值孔径为0。
3) High power semiconductor laser
大功率半导体激光器
1.
The incident power ratio of front and back cavity facet coatings was deduced,and the importance in optimized designing of electric field intensity(EFI) distribution of back cavity facet coatings for 808nm high power semiconductor laser was explained.
从实际问题出发在以往腔面膜的研制基础上,选择适合制备808 nm大功率半导体激光器腔面的镀膜材料。
2.
In order to solve the heat radiation of high power semiconductor lasers,the internal thermal distribution of the lasers and the influence of the laser diodes sintered by different solders(In,SnPb,AuSn)on the thermal resistance of the lasers were analyzed by ANSYS finite element software and the steady thermal simulation method.
为了解决大功率半导体激光器的散热问题,利用有限元软件ANSYS,采用稳态热模拟方法,分析了半导体激光器内部的温度分布情况,对比分析了In、SnPb、AuSn几种不同焊料烧结激光器管芯对激光器热阻的影响。
3.
The high efficiency and high power semiconductor laser with multi-active regions, which are cascaded by reverse biased tunnel junction(s) can resolve the problems in theory and ov.
大功率半导体激光器在光通讯、医疗、军事、印刷和光泵浦等领域有着广泛的应用，然而当通过增加注入电流提高传统半导体激光器的光束出功率时，要受到电热烧毁和光腔面灾变性损坏(COD)的限制。
4) high power semiconductor laser
高功率半导体激光器
1.
It closely relates with the quality and reliability of the high power semiconductor laser.
为实现对高功率半导体激光器快速、有效、无损的质量检测和可靠性筛选,对器件进行了电导数和光导数测试及分析。
2.
Application of high power semiconductor laser were summarized in some fields such as laser communication, laser guidance, laser radar, laser fuse, laser range-finding, laser night vision and illumination, laser simulating weapon and military fiber peg-top, etc.
简要阐述了高功率半导体激光器在激光通信、激光制导、激光雷达、激光引信、激光测距、激光夜视与照明、激光模拟武器以及军用光纤陀螺等领域的应用。
5) High power semiconductor lasers
大功率半导体激光器
1.
The recent progress of high power semiconductor lasers are reviewed with focusing on reliability,power conversion efficiency,wavelength stabilization and extended wavelength range.
大功率半导体激光器在军事领域和工业领域有着广泛的应用。
6) high-power semiconductor laser
大功率半导体激光器
1.
This paper gives a theoretical hypothesis witch explains the laser ablation of fiber end face by high-power semiconductor laser,and basic on the hypothesis we gained that coupling efficiency of the system is changing with time,such as ηt=η0t-aβmSk=η0t-aβρ.
本文提出大功率半导体激光器(LD)对光纤耦合界面的烧蚀的理论假设,得出系统耦合效率随时间的变化关系为ηt=η0t-αβmsk=η0t-αβρ。
2.
Based on the law of refraction in vector form,the laser beam propagation in an aspheric and asymmetrical laser beam collimation system from high-power semiconductor laser has been researched for spatial laser beam long-distance propagation.
为实现空间激光束的远距离传输,利用矢量折射定理研究了大功率半导体激光器发散光束经非球面、非轴对称准直系统的光传输特性。
补充资料：半导体激光泵浦的激光晶体
半导体激光泵浦的激光晶体
LD pumped laser crystal
半导体激光泵浦的激光晶体LD PumPed lasercrystal适用于半导体二极管作泵浦源的激光晶体。传统的固体激光器一般用闪光灯泵浦，由于闪光灯的发光区域宽，只有一部分能量被吸收后转换成激光，大部分转换成热量，使工作物质温度上升，恶化了输出激光束的质量。半导体激光器输出的激光谱线窄(一般为几纳米)，选择合适的半导体激光器，使其激光光谱与某种固体激光材料的吸收光谱匹配，即可达到高效泵浦，大大减轻固体工作物质的热负荷。 因为半导体激光器光泵区域小，需用的晶体尺寸也小，因此要求基质晶体内可掺入的激活离子浓度要高，且不产生浓度碎灭。此外，要求与光泵的半导体激光波长相匹配的晶体的吸收带要宽，吸收系数要大;要有低的阑值功率;Q开关运转时，荧光寿命要长。当泵浦光源从闪光灯改变为半导体激光二极管时，对被泵浦的激光晶体产生了不同的要求。用闪光灯泵浦时，对材料的热性能和机械性能有严格要求，而半导体泵浦则更注重材料的光谱性能。 在已使用的激光晶体中，掺钱石榴石(Nd:YAG)晶体的阑值功率低，光学质量高，是应用于半导体激光光泵的固体激光器的主要材料。由于Nd3+离子在基质晶体中受分凝系数的限制，Nd3+离子浓度不能太高，所以一些氟化物和钨、钥酸盐晶体等掺杂浓度高，激光效率高，荧光寿命长，有可能成为半导体激光泵浦的后选晶体。 用半导体泵浦可制成效率高、功率和频率稳定、激光束质量好、寿命长的全固化激光器，并经各种频率转换技术，可发展成各种波长、各种模式、各种运转方式的激光器，这种激光器将在很大范围内取代已有的各类固体、液体和气体激光器。 (沈鸿元)
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参考词条