AFL:2025年单模光纤在超大规模和AI数据中心中的微弯损耗白皮书(英文版).pdf |
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Inner Primary Coatings – Soft Coating for Cushioning and Stress Reduction The inner primary coating, which is in direct contact with the glass fiber, is designed to be a soft cushioning layer (a low Young’s modulus - a measure of a material’s stiffness or elasticity). This softness allows it to absorb and cushion external stresses, such as lateral pressures from neighbouring fibers or other cable elements or temperature-induced contractions. Experimental studies show that reducing the modulus
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