Estimation of Long-Term Change in Physical Property of Optical Fiber Coating Considering Effect of Humidity

摘要

Our team has developed a degradation model considering the effect of humidity on Young's modulus of primary coating in the optical fiber, i.e. in situ modulus (ISM), and also established an estimation method for the long-term change in ISM based on the model. This method allows the estimation of ISM degradation at arbitrary conditions of temperature, relative humidity and duration. The derived contour profile of standard degradation duration, which is the duration estimated for ISM to reach a specific retention value by the degradation, and the equation of equivalent conditions are useful tools for the estimation of long-term change in ISM.