The theoretical strength of a pristine silica fiber is exceptionally high. However, flaws such as inclusions, air lines, coating defects, and surface contamination can substantially reduce the fiber strength affecting the yield in fiber manufacturing. Producing long lengths of optical fiber with high strength is a difficult task. In most cases, fiber fracture at a low-strength level can be traced to surface flaws caused by particle contamination.
© 1986 Optical Society of AmericaPDF Article