Casting preforms for optical fibres
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Apr 28, 2005
app pub date -
Dec 23, 2004
filing date -
Jul 20, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
This invention relates to a method of preparing a preform for an optical fibre, and more particularly to a method of preparing a preform for a polymer holey optical fibre. The invention provides a method of preparing a preform for manufacture of a polymer holey optical fibre comprising casting a preform body in a mould from a suitable material, said mould including at least one protrusion adapted to form a corresponding hole within the preform, and subsequently separating the preform body and mould. The invention also provides a method of preparing a preform for manufacture of a polymeric holey optical fibre comprising separately casting one or more elements of a preform in respective mould(s) from a suitable material, and separating said elements from said respective mould(s) and combining said elements to construct a preform having a plurality of holes therein, each hole being formed in an element or formed by the combination of two or more elements.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 136 Citation Count
- B29C Class
- 98.83 % this patent is cited more than
- 20 Age