摘要 |
PURPOSE:To aim reduction in cost and improvement in quality, by applying a covering material obtained by blending a resin composition having a given refractive index with an infrared light absorber to optical fiber. CONSTITUTION:A resin composition (e.g., dimethylsiloxane resin composition) having <=1.5 refractive index with an infrared light absorber to give a covering material. The covering material is applied to optical fiber. Inexpensive and high-quality optical fiber with negligible clad mode is obtained by using the coated optical fiber and the covering material.
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