Mass production of zero water peak fiber by VAD process

摘要

This paper describes the low attenuation at the 1400nm band of optical fiber, which depends on a deposited first cladding and core diameter ratio (D/d) of core rod on Vapor Phase axial Deposition (VAD) process and a dehydration method. By using the most suitable D/d for much more efficient productivity and the improved dehydration process, we developed Preform for Zero Water Peak Single Mode (ZWP-SM) fiber to produce over 1,300F.km.