Invention Application
- Patent Title: METHOD FOR FORMING AN OPTICAL WAVEGUIDE FIBER PREFORM
- Patent Title (中): 形成光波导光纤预制的方法
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Application No.: PCT/US2003/016040Application Date: 2003-05-21
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Publication No.: WO2003101900A1Publication Date: 2003-12-11
- Inventor: WALCZAK, Wanda J
- Applicant: CORNING INCORPORATED
- Applicant Address: 1 Riverfront Plaza, Corning, NY 14831 US
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: 1 Riverfront Plaza, Corning, NY 14831 US
- Agency: HOMA, Joseph M
- Priority: US10/159,678 20020531
- Main IPC: C03B37/027
- IPC: C03B37/027
Abstract:
A method of producing a doped optical fiber preform from a silica-based preform is disclosed which includes, in a first gas exposure step, exposing the silica soot portion to a first gaseous environment containing a chlorine-containing compound for a time and at one or more temperatures below the consolidation temperature of the silica soot portion, in a second gas exposure step, exposing the silica soot portion to a second gaseous environment containing a second gaseous compound for a time and at one or more temperatures below the consolidation temperature of the silica soot portion, and in a third gas exposure step, exposing the silica soot portion to a third gaseous environment containing a chlorine-containing compound for a time and at one or more temperatures below the consolidation temperature of the silica soot portion and higher than at least one of the temperatures in the first gas exposure step.
Information query
