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用一种新近发展的脱水技术脱水VAD多孔状预制件,制得了超低OH含量的光纤。该光纤在1.38μm的吸收损耗只有0.04dB/km,剩余OH含量估计在1ppb以下。
The use of a newly developed dewatering technology to dehydrate VAD porous preforms produces ultra-low OH fibers. This fiber has an absorption loss of only 0.04 dB / km at 1.38 μm and an estimated residual OH content of 1 ppb or less.