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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。这种旋转接头采用一同轴光纤 ,一偏轴光纤的结构 ,同轴光纤的信号通过一反射镜 (成 90°)反射入侧面的固定光纤中 ;偏轴光纤的光信号通过一透射镜耦合到另一同步转动的光纤上 ,再将此光纤的另一端置于同轴位置 ,再与另一同轴固定光纤耦合。试验结果表明这种器件已达到实用化的程度。
This paper describes the design principle and experimental results of a new two-core multimode fiber rotary joint. The rotary joint adopts a coaxial optical fiber and an off-axis optical fiber structure. The signal of the coaxial optical fiber is reflected by a reflecting mirror (at 90 °) into the fixed optical fiber on the side; the optical signal of the off-axis optical fiber is coupled through a transmission mirror To another synchronous rotation of the optical fiber, and then put the other end of the optical fiber coaxial position, and then coupled with another coaxial fixed fiber. Test results show that this device has reached the practical level.