By means of pulse injection, the relation between lasing wavelength and chip temperature of distributed feedback laser (DFB-LD) has been obtained.
利用脉冲注入法测量了分布反馈激光器(DFB - LD)芯片温度与激射波长的关系。
METHODS:134 cases of large venous malformation were treated by poly-drug injection, combined with circular transfixation around lesion, laser, and surgery.
方法:采用多种药物联合注射,结合病变周围环形缝扎、激光、手术等方法,综合治疗口腔颌面部大面积静脉畸形134例。
The modulation bandwidth and the relaxation oscillation frequencies of the laser are quite different at different injection powers and wavelengths.
发现在不同的注入光强度和波长下,激光器的调制带宽和弛豫振荡峰频率会发生变化。
A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.
传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉,从而实现了干涉相位的线性检测。
This paper reports that the frequency responses of a direct-modulated DFB laser diode can be improved using an injection locking method.
验证了通过注入锁模方法,分布反馈(DFB)半导体激光器的频率响应可以得到明显的改善。
Wavelength switching together with the switching of the dominating output port of the fiber laser is achieved by controlling the power of a tunable injection laser.
通过控制一个可调谐注入激光器的光功率实现了该激光器的波长切换和主输出端口切换。
We suggest a new efficient method of laser tuning: the principle of tuning and amplification by self-injection.
本文提出一种新型的高效激光调频方法——自注入调频放大原理。
The experimental results show that CH plating hole targets have higher laser energy injection efficiency.
实验结果表明:镀CH膜是增加激光能量注入率、提高腔靶辐射温度的有效方法。
The injection tooling with the designed optimal conformal cooling channels was fabricated by using the selected laser sintering technique.
利用选择性激光烧结快速制模工艺制造出设计好的具有最优随形冷却水道的注塑模具。
Objective To investigate the effect of retrobulbar injection of triamcinolone acetonide (TA) combined with laser photocoagulation treatment on diffused diabetic macular edema.
目的观察球后注射曲安奈德(TA)联合激光光凝治疗糖尿病性弥漫性黄斑水肿的疗效。
The gain and saturation of tapered laser amplifier are the function of temperature and injection current.
锥形激光放大器的增益和饱和分别是工作温度和注入电流的函数。
A semiconductor laser, when subjected to perturbation such as optical feedback, optical injection, optoelectronic feedback, can display chaotic output.
半导体激光器在受到如光反馈、光注入、光电反馈等扰动下,可得到混沌输出。
Objective: To confirm clinical therapeutic effect in treatment of osteoarthritis in knee joint by laser treatment of trigger points associated with sodium hyaluronate injection in articular cavity.
目的:明确膝关节腔注射玻璃酸钠与痛点激光照射结合治疗膝关节骨关节炎的临床疗效。
Meanwhile, the effect of optical injection in erbium-doped fiber laser was investigated, and the optimized wavelength to control the lasing wavelength has been found.
此外,还研究在掺铒光纤激光器中注入光实现波长可开关的光控机制并找到了抑制腔内激发波长的最优注入光波长。
She is good at jaw and face cosmetic surgery, has much experience in injection and laser cosmetic.
擅长颌面外科美容手术,对注射 美容、激光美容均有丰富临床经验。
To explore, simple, safe and effective way of treating retinal detachment due to macular break 48 cases of macular breaking retinal detachment were treated by laser with intravitreous air injection.
为寻求一种简便、安全、有效的治疗黄斑裂孔视网膜脱离的方法,本组收治黄斑裂孔视网膜脱离48例。
Conclusion Large-dosed interferon sublesional injection has an important clinical significance in preventing the recurrence of condyloma acuminatum after laser operation.
结论大剂量干扰素局部注射,对预防尖锐湿疣激光术后复发具有重要临床意义。
A method based on pulse injection was put forward to test the light-current-voltage (LIV) characteristics of laser diode (LD), and a new type of pulse measurement system was developed.
为精确测试半导体激光器(LD)的光功率-电流-电压(LIV)特性,提出一种基于脉冲注入调制的方法,并据此研制新型的LD脉冲测试系统。
Hardfacing, laser cladding, laser melt injection and plasma melt injection were introduced, and the virtues and defects of all the methods were discussed.
详细介绍了堆焊、激光熔覆、激光熔射、等离子熔化-注射等颗粒增强表层复合材料的制备方法,并分析了各种制备技术的优缺点。
The article discusses the differences in physical mechanism of mode locking by laser pulse injection between the dispersion region at positive group velocity and that at negative group velocity.
本文阐述工作于正、负群速色散区中的光脉冲注入锁模的物理机制的区别。
The experimental results show that under the same conditions the laser energy injection efficiencies for half-cavity targets are 10 percent lower than those for hole targets.
实验结果表明:相同参数条件下半腔靶与孔靶相比,激光能量注入率减少约10%。
The expressions for the dynamic frequency shift of an injection-locked semiconductor laser are given.
本文给出了注入锁定半导体激光器动态频率漂移的解析表达式。
All patients were treated with laser, while the treatment group were added with sodium hyaluronate injection in articular cavity. Once a week, the course of both group were 5 weeks.
全部病例采用激光治疗,治疗在此基础上加玻璃酸钠关节腔内注射,每周1次,5周为1疗程。
The optimal intensity noise suppression of a Fabry-Perot (FP) laser is experimentally acquired by relatively strong external optical injection locking technology.
采用较强的外注入光锁定FP激光器,获得了理想的强度噪声抑制效果。
They learned that 3D printers that use heat or a laser to melt plastic consumed an estimated 50 to 100 times more electrical energy than injection molding to make an object of the same weight.
他们了解到,使用热或激光来熔化塑料三维打印机消耗的估计50至100倍的电能比注射成型,使相同的重量的目的。
The injection energy of the laser to its adjacent laser is much higher than that to other lasers, which ensures stable system.
每台激光器对其相邻激光器注入能量远大于对其它激光器注入的能量,因此多台激光器扩展时系统运转稳定。
Researchers thought that such precise injection was impossible in a laser wakefield accelerator because the accelerating structure is microscopic and short-lived.
研究人员认为在尾迹场加速器中不可能这么精准的注入电子,因为加速的过程是微观而且短暂的。
The modulation properties of an injection-locked semiconductor laser are discussed. The expressions for power responses and the dynamic frequency shifts of the laser are prented.
本文讨论了注入锁定半导体激光器的调制特性,给出了功罕响应和动态频率飘移的表达式。
The modulation properties of an injection-locked semiconductor laser are discussed. The expressions for power responses and the dynamic frequency shifts of the laser are prented.
本文讨论了注入锁定半导体激光器的调制特性,给出了功罕响应和动态频率飘移的表达式。
应用推荐