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该光纤的衰减一般可稳定在5db/km,最低衰减2.3 db/km(λ=0.85μm),在-60～+80℃温度内衰减变化小于0.5db/km,平均强度5kg 以上((?)150μm),丝径公差(?)150±3μm,数值孔径0.16～0.24。该光纤可用于保密通信、雷区通信等特殊
The attenuation of the optical fiber is generally stable at 5db / km and the minimum attenuation is 2.3 db / km (λ = 0.85μm). The attenuation of the optical fiber is less than 0.5db / km and the average intensity is more than 5kg at the temperature of -60 ~ +80 ℃ 150μm), wire diameter tolerance (?) 150 ± 3μm, numerical aperture 0.16 ~ 0.24. The fiber can be used for confidential communications, mine communications and other special