MANUFACTURING METHOD OF A HIGH-RELIABILITY OPTICAL FIBER COUPLER
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United States of America Patent
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Issued Date -
Sep 15, 2011
app pub date -
Dec 31, 2008
filing date -
Nov 19, 2008
priority date (Note) -
Abandoned
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Abstract
A manufacturing method of a high-reliability optical fiber coupler includes (1) manufacturing the optical fiber coupler by a fused biconical tapering process employing a parallel sintering process, and detecting via a tension test the strength of the optical fiber resulting from the sintering process, securing the strength thereof being greater than or equal to 1N; (2) fixing both ends of the sintered optical fiber coupler in a U-shaped quartz groove via hardening adhesive, and filling inside of the U-shaped quartz groove around the coupling arm at both ends thereof with adhesive to shorten the suspending length of the optical fiber; (3) inserting the U-shaped groove containing the optical fiber coupler into a circular quartz tube, and fixing both ends of the circular quartz tube via hardening adhesive; and (4) sleeving a stainless steel tube around the circular quartz tube, and sealing both ends of the stainless steel tube.
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