由于本实用新型采用了上述结构，调焦环可快速地卡装在光模镜头上，拆装方便、定位准确。
With the structure, the focusing ring can be quickly clamped on the optical mode lens; and assembly and disassembly are convenient and positioning is accurate.
分析了耦合效率与光源激发的光模场、光纤结构及光纤头部形状、耦合工作参数等因素的关系。
The relation between coupling efficiency and mode field stimulated by SLD, fiber structures, shape of fiber butt and coupling operation parameters was analyzed.
“这是我们这一发现的精要所在：采用局域模不仅能捕获光，还增强了光和物质的相互作用，”Lodahl说。
"This is the essence of our discovery: we used localized modes not just to trap light but to enhance interaction between light and matter," Lodahl says.
反氢和氢原子应该有相同的特性，例如发出光的频率一模一样。
Antihydrogen and hydrogen atoms should have the same properties, emitting the exact same frequencies of light, for example.
本文讨论了这类非互易旋光张量下的波矢面及简正模的基本形式。
This paper discussed the basic form of the wave-vector surface and normal mode of nonreciprocal gyrotropic dielectric tensor.
在综合大量实例的基础上，提出双高斯函数逼近多模光纤的光脉冲输出的解析近似方法，使时域法确定光纤带宽的精度大为提高。
On the base of a plenty of facts we suggested a method in which bi-Gaussian form is approached the output pulse in multimode fibers The accuracy measuring band in time domain can be improved highly.
研究了光子晶体多模波导在非光子带隙区光场的传输特性。
The properties of the propagating field in multimode photonic crystal waveguides (PCWs) exhibiting no photonic band gaps (PBGs) are investigated.
因此，研究部分相干光的传输特性、光束质量和模分解具有重要的理论意义及实用价值。
It would be of important significance to study the laser beam characterization, beam propagation, mode decomposition and beam quality control.
为了获得振幅均衡的有理数谐波锁模脉冲，必须在原有的实验装置中添加一个掺铒光纤放大器(EDFA)以提高注入调制光信号功率。
For obtaining a pulse series with a small amplitude ripple, an Erbium-doped Fiber Amplifier (EDFA) must be added into the primary experiment setup to enhance injection-modulation signal power.
方法采用两个不同态的密度算符距离函数方法，从理论上研究两个不同多模奇相干态光场之间的距离。
Methods the distance between two different multimode odd coherent state light fields was analyzed theoretically by the method of distance functions of density operator.
在场论中，光被纵光学和横光学模的拉曼散射能在一个统一的理论框架内描述。
In our quantum theory, Raman scattering of light by longitudinal and transverse polar modes can be described within a unified theoretical framework.
本文第一部分运用耦合模理论推导了在光纤光栅中传播的光的基本传输方程以及给出各个参数的物理意义。
Firstly, basic transmission equation of transmitted light is given using coupled-mode theory in Fiber Bragg Gratings and physics meaning of every parameter is given.
模数相同且相互正交的两个多模奇相干态光场在一定条件下完全可分辨。
Two orthogonal multimode odd coherent state light fields with same modulus can be separated completely at certain conditions.
有理数谐波锁模技术是产生高速超短脉冲的重要技术之一，其光时分复用通信技术等领域中有重要的应用价值。
The rational harmonic mode-locking has become a research subject of intense interest due to its application on the generation of ultra- high repetition frequency optical pulse train.
在液晶上实现了汉字显示(不同取模方式)、光棒显示、显示画面滚动和位图显示等一系列功能。
In achieving the LCD: Chinese character display (different way of model), light stick, rolling and display digital map display and a series of functions.
针对光纤传输中的偏振模色散(PMD)问题，研究和比较了现有PMD的光域补偿方法。
The existing optical domain compensation methods for the Polarization Mode Dispersion (PMD) in fiber-optic transmissions are studied and compared.
论文给出了模场分布和光功率与模折射率的关系。
Modal field distributions and relations between optical power and modal index are given.
分别用固定长度保偏光纤和可变光延迟线实现偏振模色散(PMD)补偿的实验。
Experiments of compensation for PMD were done using fixed length of PMF and variable optical delay line, respectively.
针对TM和TE模的入射光，我们采用严格的耦合波原理对金属光栅的表面衍射场进行了计算。
The rigorous couple wave theory is used to quantitatively calculate the diffraction electromagnetic fields for TM-polarized and TE-polarized incident optical wave.
本文对于非均质岩体工程的变弹模光弹性实验计算有着一定的参考意义。
It has some reference meaning for the Photoelastic experiment and Calculation of Changeable elastic modulus in the inhomogeneous rock masses engineering.
分析了相位偏置和光纤的色散对锁模机制的影响，获得了产生稳定超短光脉冲的条件。
The effects of phase bias and group velocity dispersion on mode locking mechanism are analyzed. The operating conditions for stable short pulse generation are obtained.
提出了利用离子交换技术制作多模干涉(mmi)型光功分器的设计方法。
The method to fabricate an optical power splitter with multi-mode interference (MMI) is proposed using ion exchange technology.
集成光学模转换器是光开关，光调制器，光学滤波器的重要组成部分。
Integrated optical mode converter is an important component of optical switches, modulators and filters.
研究了非均匀应变对低维量子结构的能带和TE模光增益所产生的影响。
The effects of inhomogeneous strain on the band structure and te mode gain were studied for low dimensional quantum systems.
根据理论模型计算了纵模限制因子、阈值增益、光增益、输出功率等特征参数。
We calculated longitudinal confinement factor, threshold gain, optical gain and output power etc through theoretical model.
波纹喇叭与光壁多模喇叭是两种比较理想的高效率馈源。
Corrugated wall horns and smooth wall multimode horns are two comparatively ideal feeds with high efficiency.
通过腔镜向腔内注入压缩真空态光场，使腔模向压缩真空态光场衰减。
The cavity mode couples to an injected squeezed vacuum, and the atom is also driven by an extrnal laser field.
并在上述研究的基础上，提出了一种制备多模叠加光场并使该光场产生压缩效应的实验方案。
Based on these, one newly experiment prepare plan for generation of multimode squeezed state light field is raised.
减小探测光输入功率，选取短波长探测光波长，增加半导体光放大器的腔长和模场限制因子以及大的偏置电流可提高转换光消光比；
Meanwhile extinction ratio of converted signal can be improved with low probe power, short probe wavelength, long cavity length, high confinement factor, and large biased current.
建立了描述厚层光刻胶内衍射光场形成过程的物理模型，并利用傅里叶模方法模拟计算和分析了其内部衍射光场分布。
Then Fourier model method, mostly applied to study the diffractive properties of gratings is adopted to analyze the diffractive image field in thick film photo resist.
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