发明授权
- 专利标题: Method of fabricating large optical preforms
- 专利标题(中): 制造大型光学预型件的方法
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申请号: US894792申请日: 1978-04-10
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公开(公告)号: US4231774A公开(公告)日: 1980-11-04
- 发明人: Mokhtar S. Maklad
- 申请人: Mokhtar S. Maklad
- 申请人地址: NY New York
- 专利权人: International Telephone and Telegraph Corporation
- 当前专利权人: International Telephone and Telegraph Corporation
- 当前专利权人地址: NY New York
- 主分类号: C03B37/014
- IPC分类号: C03B37/014 ; C03B37/018 ; G02B6/00 ; C03B37/025 ; C03B37/075
摘要:
A large optical preform is fabricated by rotating a platform about its axis while advancing the platform away from a series of nozzles. Each nozzle is arranged to generate an annular ring associated with the preform by a vapor phase oxidation technique. The vapor content introduced by each nozzle is tailored to provide a large diameter optical preform possessing step index, single mode or graded index capabilities. The preform thus produced is then drawn into elongated optical fiber cables having the above described properties.
公开/授权文献
- US5989124A Tripod type constant velocity universal joint 公开/授权日:1999-11-23