Abstract

The 630-nm loss band recently identified in unclad fibers made from low-OH-content vitreous silica is shown to be introduced in the fiber-drawing process. The band has an absorptive component as well as resonance fluorescence whose peak intensity amounts to about 16% of the total losses. A red fluorescence was observed when the same fibers were illuminated with the 325-nm line of a HeCd laser. The loss band could be eliminated by annealing for 3 h at 700 °C. Spontaneous annealing at room temperature was also observed in some cases. It is proposed that the 630-nm band is associated with drawing-induced defects of the silica network.

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription