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大多数实心光纤的缺点是在传输光能时会吸收掉一部分，因此当光达到另一端时能量减少。现在国外某大学研制出一种在中心有一个孔的空心光纤，这种空心光纤比传统的实心光纤传输的能量要巨大得多。 采用了一种称为“光(能)带(间)隙”的机理制造出新的光纤。“光带隙机理”是
The disadvantage of most solid optical fibers is that they absorb a fraction of the transmitted light energy and therefore reduce their energy as it reaches the other end. Now a foreign university developed a hole in the center of a hollow fiber, hollow fiber than the traditional solid fiber transmission energy is much greater. A mechanism called “light (energy) band gap” is used to create a new fiber. “Light Band Gap Mechanism” is