OPTICAL WAVEGUIDE FIBER COOLER

摘要

Disclosed is an optical waveguide fiber coating system having means for cooling the hot fiber prior to the time that the fiber enters the coating apparatus. The cooling means comprises an elongated tube through which the fiber passes. Cool dry gas is flowed from an annular slot surrounding said fiber, preferably so that it has a flow component directed radially inwardly toward said fiber and a flow component which is directed longitudinally toward the opposite end of the tube.