This paper describes the structure designing and the experiment result of a new duplex multi mode fiber rotary joint.
本文阐述了一种新的两芯多模光纤旋转接头的设计原理及实验结果。
A multi-mode optical fiber sensor system is proposed, which is installed in the window frame and whose sensor signals are based on variation of a speckle pattern.
提出一种车窗防夹的多模光纤传感系统，该系统安装在车窗框内，并基于斑纹图样的变化来获得信号。
The mode distributions at the end of a multi-mode fiber and a channel waveguide were successfully imaged by the system.
采用该系统成功地检测了多模光纤端面和一个条形光波导端面的模场分布。
The theoretical formulas of torsional Angle sensing are derived and the torsional Angle of this sensor is linear to the power loss of the multi-mode fiber.
提出一种新型多模光纤扭转传感器的基本原理和传感结构，推导了扭角传感的理论公式，该传感器的扭角与多模光纤的功率损耗呈线性关系。
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。
Then, super-local modes in multi-lobe stress region spun fibers can be obtained by using mode transform. Finally, the fiber birefringence is decided from the phase constants of super-local modes.
从而推得多叶应力区扭转光纤中的超本地模，由超本地模的相位常数来确定该光纤的双折射。
By controlling the taper end size of the fiber, the unique tapered fiber can convert a multi-mode beam into a single-mode one.
通过控制拉锥后的末端光纤尺寸，实现了多模光束输入转换成单模光束输出。
To increase the solar pump power, the structure of multi-mode fiber array or parabolic dish concentrator array combination with tapered fiber bundles is put forward.
为了提高太阳能泵浦功率，提出通过光纤集束熔锥侧面耦合器构成多模光纤阵列或者聚光器阵列的结构。
To increase the solar pump power, the structure of multi-mode fiber array or parabolic dish concentrator array combination with tapered fiber bundles is put forward.
为了提高太阳能泵浦功率，提出通过光纤集束熔锥侧面耦合器构成多模光纤阵列或者聚光器阵列的结构。
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