针对化学气相沉积法制备的光纤组分变化范围受限的问题,介绍了近年来发展迅速的光纤拉丝法(MIT),并从预制棒芯原料为玻璃、半导体、晶体角度总结归纳近年来MIT法制备特种光纤的重要进展,分析了所制备特种光纤的性能和应用特点。最后对这种拉制光纤的方法存在的问题和未来发展趋势进行了展望。

Considering the problem that the optical fibers prepared via the modified chemical vapor deposition method suffer from the restriction of limited variation range of fiber core components, the rapidly developed melt-in-tube (MIT) fiber drawing method is introduced. The recent progress in the preparation of special optical fibers based on the MIT method is summarized from the perspective of glass core fiber, semiconductor core fiber, and crystal core fiber. Further, the performances and applications of these optical fibers are also analyzed. Finally, the existing problems and development trend of this method are discussed from a practical perspective.