1) multimode fibers(MMFs)
多模光纤(MMF)
2) multi-mode fiber
多模光纤
1.
Based on mode field coupling theory,a model to calculate the butt-joint coupling efficiency between a multi-mode fiber and a single-mode fiber is presented.
采用模场耦合理论,推导出多模光纤与单模光纤的直接耦合效率表达式,计算得到耦合效率与所选用的多模光纤和单模光纤的纤芯芯径之间的模拟关系。
2.
Separate microdisk laser with diameters of 1?10 μm were attached at the facet of multi-mode fiber after epitaxial growth and etching.
经过外延生长和腐蚀分离后,直径为1～10μm的独立微盘激光器件分别被粘附在多模光纤的端面上。
3.
In this study on the holography table,hologram is successfully made using two multi-mode fibers,and successfully twice exposed and twice formed on the photographic plate.
多模光纤成本低,重量轻,柔韧性好,使用方便,将它使用在大学物理激光全息实验中具有一定的实用价值。
3) multimode optical fiber
多模光纤
1.
Taking the multimode optical fiber 10 Gb/s transmission scheme as background,the transmission theory of new multimode optical fiber OM3 was introduced in detail.
以多模光纤万兆传输方案为背景,对新型光缆OM3的传输原理进行了详细介绍,从而使用户可以更好地理解这种新型多模光缆以及相关DMD测试问题。
2.
the sensor introduces 8 singlemode optical fibers on the incident end,and 8 multimode optical fibers on the received end.
该传感器引入了输入端的8根单模光纤和接收端对应的8根多模光纤取代透镜。
3.
Complex experiment shows that the multimode optical fiber not only has the ability to detect the displacement of less than 0.
复杂实验表明 ,多模光纤不仅能够检测出小于 0 。
4) multimode fiber
多模光纤
1.
A dynamic light scattering system based on multimode fibers for particle sizing;
基于多模光纤的动态光散射粒径测量研究
2.
Design and analyse of a communication system based on subcarrier multiplexing with multimode fiber;
基于多载波复用多模光纤通信系统的设计与分析
3.
Theoretical and experimental study on the self-homodyning linewidth measurement using multimode fiber;
多模光纤用于激光线宽零拍测量法的原理和实验研究
5) multimode fibers
多模光纤
1.
We propose a simple theory for the optical fiber temperature sensor with an index of refraction highly sensitive to temperature, including influences of both meridional rays and skew rays and discuss bending loss of multimode fibers.
讨论了多模光纤的弯曲损耗。
2.
From the propagation-mode field distribution in multimode fibers, a calculationmethod for Fraunhoffer-diffraction distribution from step-index and α-pewer index fibers isproposed in this paper.
本文在多模光纤传播模式的光场分布的基础上,得出了阶跃型和梯度型多模光纤出射端面光波的夫琅和费衍射分布的计算方法,并分别给出了两种光纤的远场辐射分布的算例。
补充资料：适马apo170-500mmf5-6.3dg
适马apo 170-500mm f5-6.3 dg基本参数
镜头结构 11组13枚
对焦方式 自动
焦距 170-500 mm
aps焦距 255-750 mm
卡口类型 尼康f卡口
适马apo 170-500mm f5-6.3 dg光学参数
水平视角 14.5-5 度
最大光圈 5-6.3
最小光圈 32
最近对焦距离 3.2 m
最大放大倍率 0.15 倍
滤镜口径 86 mm
镜头直径 92.5 mm
镜头长度 232 mm
镜头重量 1345 g
光圈叶片数 9 片
镜头类型 变焦
镜头用途 望远镜头
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条