本文介绍了激光模简并解除的实验观察和模简并解除的原因。
This paper presents experimental observations and the cause for removal of laser mode degeneracy.
导出了激光模的色散关系、共振频率和阈值增益的近似解析表达式。
Approximative analytical expressions are derived for the dispersion relations, the resonance frequencies and the threshold gains of the laser modes.
开发了由PMAC运动控制卡和工业PC机组成的开放式多功能激光模切加工数控系统。
An open and multifunctional laser die-cutting numeric control system was developed with PMAC motion control card and industry PC.
讨论了激光晶体的热效应以及激光模半径与泵浦光斑半径匹配对激光输出功率和输出光束质量的影响。
The influences of thermal effects and the matching of the laser mode radius with the pump spot radius on the output power and beam quality are discussed.
比如一些3D印刷机在印刷台铺撒金属粉末之后，采用露光模板以外的激光或电子束方式进行热凝处理来产生样模。
Some 3D printers spread metal powders on the print table and sinter the pattern with lasers or electron beams, rather than using masks.
直接利用激光快速成型的原型树脂模，结合陶瓷型精密铸造技术，制得了高精度、低表面粗糙度、高使用寿命的钢模具。
The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.
通过实验在高增益的TEA CO_2激光器中，得到了基模环形光斑输出。
The ring output spot of the fundamental mode is obtained from a high gain TEA CO2 laser by experiment.
用傅里叶变换的方法分析了锁模激光器中模式间的相位和振幅涨落对锁模脉冲列特性的影响。
The Fourier transform method has been used to analyze the influence of modal amplitude and phase fluctuations in a mode-locked laser on performance of its output pulse.
介绍了半导体可饱和吸收镜(SESAM)的基本结构及使用半导体可饱和吸收镜被动锁模固态激光器的基本原理。
The basic structure and the fundamental principle of semiconductor saturable absorption mirrors (SESAM) that are used for passive mode-locking solid-state lasers are introduced.
对主动锁模光纤激光器的锁相环进行改进，提出一种新型的“变带宽锁相环”的设计结构。
This article presents a new design structure of variable bandwidth phase-locked loop based on improving phase-locked loop of actively mode-locked fiber laser.
介绍了几种典型无模成形技术的研究概况，重点介绍了激光冲击成形的无模成形技术。
Several technologies called formative research profiles, focusing on technology of laser shock forming are introduced.
为研究激光陀螺精细模耦合作用，考虑了增益介质中的粒子数脉动效应。
The population pulsation effect in the gain medium was considered to research the fine mode coupling effects in the laser gyro.
由此，对这类混合锁模激光器系统的特性作了理论解析。
Based on these results, some characteristics of such a hybrid mode-locked lasers system are interpreted theoretically.
建立了激光束的相干模分解理论。
Theory of the coherent-mode decomposition of laser beams was built.
采用CO2激光切割模切板，研究激光功率、切割速度、焦点位置等参数和切割深度之间的相互关系，研究如何确定最大切割速度和优化切割速度。
CO2 lasers is conducted to cutting die - board with the aim of discussing the relationship between cutting depth and parameters such as laser power, cutting speed and focal position.
增益材料放置的对称性导致奇数阶纵模的损耗，从而增加了微激光器的调谐范围。
Certain symmetry in the allocation of gain material leads to depletion of odd longitudinal modes that, in turn, increases the tunability range of the microlaser.
导出激光谐振腔自再现模的波型函数。
The eigen function of self-reproductive mode in laser resonator is derived.
实验获得的扫模曲线表明，该驱动电源能够满足环形激光陀螺扫模系统的要求。
The mode-sweep curve obtained by experiment shows that this power supply system can meet the requirement of automatic mode-sweep system of ring laser gyro.
当固体激光器运转在低阶混合模时，既可得到较高的功率输出，又可保证较好的光束质量。
A solid state laser operated at lower-order mixed mode possesses both advantages of high output power and good beam quality.
本文在理论和实验上研究了多模激光场的量子统计特性。
Quantum statistics properties of multimode laser fields has been studied both theoretically and experimentally.
在分析常用低噪声快速光电探测器的基础上，选择pin光电二极管来探测氦氖激光纵模脉冲。
Based on analyzing common low noise and fast photodetectors, PIN photodiode is selected to detect He-Ne laser longitudinal mode pulse.
在一定的条件下，该方法是可以对单纵模光纤激光器的输出线宽进行测量的。
Under certain conditions, this method can measure the output linewidth of single longitudinal mode fiber laser.
为研究两者之间的关系，在光纤不同弯曲直径下，对多模光纤激光器的输出性能进行了实验测量和理论计算。
To study the relationship, the output capability of multimode fiber laser is measured under various bending diameters, and it also be calculated theoretically.
结果表明，热透镜效应对输出功率和频率特性影响相当大，对基模输出激光器的影响最为突出。
It is shown that the thermal lensing effects have considerable influence on the output and resonance frequencies, particularly for the fundamental mode lasers.
研究了在大芯径、多模功率光纤中传输的激光束光束质量和偏振与光纤长度的关系。
In this paper, the beam quality and polarization degree of laser beam which propagated in large core multimode power fibers is studied.
介绍了作者在测量单纵模激光器线宽参数的过程中，研制的马赫-曾德尔光纤干涉仪，并给出了实验结果。
This paper introduces the development of fiber-optic Mach-Zehnder interferometer during measuring linewidth parameter of single-frequency lasers, and the experiment result has been given.
本文报道在硅酸盐钕玻璃激光器中消除激光自锁模现象及实现单纵模运转的方法，并给出实验结果。
The methods of eliminating self - mode - locking and realizing single longitudinal mode operation in silicate glass laser is reported. The experimental results have been given.
提出了一种采用双纵模稳频激光器的新型绝对距离测量外差干涉仪。
An absolute distance heterodyne interferometer using a dual longitudinal mode he ne laser is proposed.
本文对被动锁模激光器的涨落模型作了改进。
The fluctuation model of passively mode-locked lasers has been improved.
利用锁模钕玻璃激光器的单个微微秒激光脉冲，研究了掺钕激光玻璃中钕离子的非线性双光子吸收。
The nonlinear two-photon absorption of Nd ions in Nd-doped laser glasses was studied with single picosecond laser pulses from a mode-locked Nd glass laser.
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