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由于紫外光纤光栅的快速发展和广泛应用，迫切需要一种具有高紫外光敏性的特种光纤，使之更容易、更快速地在光纤拉丝时在线写入紫外光栅，研究发现高掺锗光纤能较好地满足其要求。通过采用ＭＣＶＤ光纤生产工艺研制出了纤芯折射率达４％ 的光纤，并用它成功的写出了紫外光纤光栅
Due to the rapid development and widespread application of UV fiber gratings, there is an urgent need for a special fiber with high UV sensitivity, making it easier and faster to write UV gratings more easily and quickly when drawing fibers. Well meet their requirements. Through the use of MCVD fiber production process developed a core refractive index of 4% of the optical fiber, and use it to successfully write the UV fiber grating