Method of manufacturing glass parts for connection of optical fibers, method of manufacturing mother glass to produce glass parts, and glass parts for connection of optical fibers
AssigneeNippon Sheet Glass Co., Ltd.
InventorsToshiaki Mizuno, Katsuya Kamisaku, Masahiro Morishita
Life of this patent
Estimating the term…
Abstract
A method of manufacturing glass parts for connection of glass fibers is provided, which can improve the accuracy of the cross-sectional size of a through hole in the glass part. A mother glass having a similar cross section to a desired cross section of a glass part having a through hole is prepared, and the prepared mother glass is drawn while it is heated. The mother glass is made of a glass having a maximum devitrification speed of 100 μm or less per minute.
Claims12
A method of manufacturing a glass part for connection of optical fibers, said glass part having at least one through hole formed therein to hold optical fibers, comprising the steps of:
- preparing a mother glass having a similar cross section to a desired cross section of the glass part;
- and
- drawing the prepared mother glass while heating the same;
- wherein the mother glass is made of a glass having a maximum devitrification speed of 100 μm or less per minute.
A method of manufacturing mother glass to produce glass parts for connection of optical fibers, comprising the steps of:
- putting together a plurality of glass elements having a polygonal cross section so as to form at least one through hole having a polygonal cross section;
- and
- bonding together the glass elements put together by heat fusion.
A glass part for connection of optical fibers having a through hole formed therein to hold optical fibers, wherein said through hole has a cross section of a shape selected from the group consisting of polygon, oblong, ellipse, connected circles, and connected squares.
A glass part for connection of optical fibers having a through hole formed therein to hold optical fibers, wherein said through hole comprises a plurality of through holes.
Dependencies are inferred from the claim text.