Based on the principle of energy balance and equivalent optical length, a series of formulas have been derived.
本文根据能量平衡和光程相等的原理，导出一组非平行入射光束的整形器面形设计公式。
The effects of the optical length, the output couple coefficient, and the loss on the STF of optic fiber ring are analyzed.
并分析了光纤环光学长度、耦合输出系数、损耗对光纤环光谱传递函数的作用。
The influence of the optical length, the output couple coefficient of the optical fiber ring cavity upon the STF and the coherence of the loss is also analyzed.
结合光纤环光学长度和耦合输出系数，就损耗对光纤环光谱传递函数和相干性的影响进行了分析讨论。
Americans are worse than many at overcoming common optical illusions about the length of lines.
和大多人比起来美国人在克服关于线段长度的常见视觉错觉上表现糟糕。
Optical mapping, by contrast, can estimate the absolute length of a genome and quickly detect differences in length and structure between two genomes.
相比较而言，光学标测则可以测量基因组的绝对长度，并快速发现两个基因组之间的长度和结构差异。
Using that method, they were able to send data over a 50-kilometer length of optical fiber at 26 terabits per second.
用这个办法，研究人员能通过50公里长的光纤每秒发送26t的数据。
We adopt mix optical path and unidirectional sliding table, which minimize the impact of optical path length on laser power, enhance movement stability and reliability during cutting.
机器采用混合光路设计和单向滑动平台，减小了切割功率受光程远近的影响，增加了切割加工过程中的运动稳定性和可靠性。
Void data filling is usually used to pad the bursts (i. e. burst data packets) of OBS (Optical burst Switching) networks to required minimum length.
在光突发交换(OBS)网络中，通常采用填充无效数据的方法来达到突发包最小包长要求。
Experiments of compensation for PMD were done using fixed length of PMF and variable optical delay line, respectively.
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。
The efficient cavity length of vertical cavity semiconductor optical amplifier (VCSOA) is calculated with the theory of phase penetrating.
同时，利用相位渗透理论，数值计算了垂直腔半导体光放大器（VCSOA）中的有效腔长。
In nonlinear optical frequency conversion process, it is desirable to maximize the product of the intensity of pump laser and the interaction length in order to achieve maximum conversion efficiency.
在光的非线性传播过程中，增加泵浦光的强度及光和物质的互作用长度是获得较高的频率转换效率的主要途径。
This article has shown that it is necessary to distinguish the eikonal function, effective optical path and geometrical length etc. of active medium while investigating optical resonators.
本文指出，在光学谐振腔的研究中应当区分用程函、有效光程、激活介质的几何长度等物理量。
The influences of the fast gain saturation and the length of SOA on the performances of terahertz optical asymmetric demultiplexer (TOAD) are investigated in this paper.
分析了半导体光放大器（SOA）的快速饱和效应及其长度对TOAD解复用器性能的影响，对小开关窗口和大开关窗口两种工作模式进行了研究。
With using absolute optical interferometer for measuring length of block gauge, it is necessary to solve the problem of phase jump for reflecting of light on its surface.
在用绝对光波干涉法测量量块长度时，必须解决光在量块表面反射时的位相跃变问题。
When the aperture diameter of an optical system is fixed with the same orbit height, the resolution of ground objects can be improved by increasing the focal length.
当光学系统口径一定时，在相同的轨道高度条件下，增大焦距可以提高地面分辨率，增大系统的视场角可以扩大对地面的覆盖宽度。
The DTX provides quick validation of fiber link performance and installation quality, fiber length, measurement of optical loss at multiple wavelengths, and polarity confirmation.
利用DTX提供了光纤链路的性能和安装质量，纤维长度，快速验证在多个波长的光损耗测量和极性确认。
Estimate the wavefront error of the whole optical system, and select a proper defocus length to improve the wavefront error, and then check the system's aberration after defocus.
对测试仪的光学系统的波像差进行了估算，选择了合适的离焦量来补偿波像差，并对系统离焦后的像差进行了验算。
With the success in linear dispersion compensation technique in optical fiber communication, a new limitation with nonlinearity will be accumulated when the length of fiber link increases.
随着线性色散补偿技术的成熟，光纤通信的另一个限制因素——非线性，将随着光纤链路的加长而积累起来。
OPM(Optical Performance Monitor) can measure the performance of the light in different wave length in the optical-fibre.
光性能监测仪OPM可以方便地检测出光纤中各个波长的光波的性能。
A new type of thin layer spectroelectrochemical cell with a long optical path length was designed and constructed.
设计和制作了一种新型的长光程薄层光谱电化学池。
When zoom lens are used for military sighting, the drift of optical center caused by the change of focus length will reduce the sighting accuracy severely.
长焦变焦镜头用于军事瞄准时，变焦过程中较大的光中心漂移，降低瞄准精度。
The major advantages of the present invention include shortened optical assembly length and easy manufacture of the straight collimator.
本发明的最大优点是缩短了光学组件的长度，有利于降低直光管的制造难度。
In this paper, we describe the basic principle of polarization maintaining optical fiber and the method to measure the beat length of PM optical fiber.
本文叙述了保偏光纤能够保证传输光波偏振特性的基本原理，介绍了测量保偏光纤拍长的基本方法。
Microcomputcrs automatically control infrared grating monochrometer through interface circuit, and make a precise measurement of zero dispersion wave length for optical fibre material.
微机通过接口电路自动控制红外光栅单色仪，对光纤材料进行零色散波长的精确测量。
The key problem of FBG sensor study is the optical fiber diffraction grating signal demodulation, namely, the detection of small shifting of wave length.
研究光纤光栅传感器的关键问题是光纤光栅的信号解调，即波长微小移位的检测问题。
This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system.
研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
When the diffractive optical lens is illuminated by white light, its focal length not only relates to material dispersion and wavelength dispersion, but also to aperture factor.
在白光照射下，衍射光学透镜的焦距不仅同材料色散和波长色散有关，而且还同孔径因子有关。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
The influences of length, dispersion index and attenuation index of transmission fiber and incident optical power on ber (bit error rate) and Q value of the system is analyzed.
仿真研究了传输信道和光功率对光码分多址系统性能的影响，分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。
The influences of length, dispersion index and attenuation index of transmission fiber and incident optical power on ber (bit error rate) and Q value of the system is analyzed.
仿真研究了传输信道和光功率对光码分多址系统性能的影响，分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。
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