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已研制出一种高性能螺旋芯光纤，这种光纤广泛使用于大电流或强磁场光纤传感系统。其性能指标分别为：螺距１．５ｍｍ、芯偏２５５μｍ、拍长３．５ｍｍ及损耗小于０．５ｄＢ／ｍ。
A high performance spiral core fiber has been developed that is widely used in high current or strong magnetic field fiber sensing systems. Its performance indicators are: pitch 1.5mm, core 255μm, beat length 3.5mm and loss less than 0.5dB / m.