Strength of optical fibers with organic coatings after effect of ammonia

A study of the effect ammonia vapor and solution on optical fibers in acrylate, polyimide carbon/polyimide coatings was carried out to determine degree degradation mechanical characteristics an alkaline environment. The ultimate strength measured by two-point bending method, coating condition after interaction with monitored microscope. decrease tensile recorded for all examined types protective-strengthening starting from first hour exposure. It determined that 7 days exposure gaseous aqueous structure quartz glass is completely destroyed.