Method for manufacturing an optical fiber preform

专利名称：Method for manufacturing an optical fiber

preform by mcvd

发明人：Choon-Keun Hong,Byung-Yoon Kang,Dong-Wook Lee,Byung-Chul Kang

申请号：US105345申请日：20030530

公开号：US20060230793A1公开日：20061019

专利附图：

摘要：Disclosed is a method for manufacturing an optical fiber preform in MCVD,which simultaneously performs an etching process for injecting a reaction gas for etching

into a tube and a collapsing process for heating and collapsing the tube in order tominimize or eliminate an index dip existing at the center of the preform core. By using thismethod, the index dip phenomenon of the optical fiber preform can be minimized oreliminated, so it is possible to make an optical fiber having improved optical

characteristics, particularly having improvement in a bandwidth and a polarization modedispersion (PMD).

申请人：Choon-Keun Hong,Byung-Yoon Kang,Dong-Wook Lee,Byung-Chul Kang

地址：Seoul KR,Gyeonggi-do KR,Gyeonggi-do KR,Daegu KR

国籍：KR,KR,KR,KR

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