PRODUCTION OF PREFORM ROD FOR OPTICAL FIBER FOR SINGLE-PHASE POLARIZED LIGHT

PURPOSE:A glass rod having the core layer and the clad layer is softened by heating for deformation, then the external shape is processed into a round form to produce the titled preform rod of high accuracy in high efficiency. CONSTITUTION:A glass rod 1 consisting of the concentric core layer 2 and...

Full description

Saved in:
Bibliographic Details
Main Authors OGURA KUNIO, KIKUCHI TAKEYUKI, KAMIYA TAMOTSU, FURUI YASUROU, YOSHIDA KAZUAKI
Format Patent
LanguageEnglish
Published 12.11.1983
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:A glass rod having the core layer and the clad layer is softened by heating for deformation, then the external shape is processed into a round form to produce the titled preform rod of high accuracy in high efficiency. CONSTITUTION:A glass rod 1 consisting of the concentric core layer 2 and clad layer 3 is heated by passing through the heat zone H provided with the furnace 4 for softening, passed through the forming zone provided with rollers 5 to apply external forces to deform the rod into an oval in cross section. Then, a glass layer of the same composition as the clad layer 3 is accumulated on the external surface of the rod by the externally accumulating CVD method into a round rod. The present process gives a preform rod for single-phase polarized light with a desired core shape only by deforming an already made preform rod.
Bibliography:Application Number: JP19820076347