EP0507243A1
Expired / Lapsed
EP
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Reinforced optical fiber coupler and method of manufacture
Assignee: Sumiden Opcom Ltd
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Filing: 1992-03-30
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Granted: —
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Expires: 2012-03-30
Abstract
Abstract The reinforced optical coupler comprises an optical coupler embedded in an adhesive matrix (4) in a first reinforcing member (3) made of quartz having a longitudinal slit down the entire length. A second reinforcing member (5) surrounds the first reinforcing member containing the adhesive and optical coupler. A method of reinforcing an optical fiber coupler comprises the steps of locking the fusion zone of the optical fiber coupler to a first tubular reinforcing member having a slit in the longitudinal direction and arranging a second reinforcing member on the outer periphery of the first reinforcing member.
Inventors
- 👤 Tomoyuki c/o Yokohama Works of Hattori
- 👤 Hiroshi C/O Yokohama Works Of Suganuma
- 👤 Junichi c/o Yokohama Works of Yoshikawa
- 👤 Hiroaki c/o Yokohama Works of Takimoto
- 👤 Nobuo Tomita
- 👤 Kazuhiko C/O Sumiden Opcom Ltd. Arimoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:35
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2821; G02B6/2835; G02B6/2856
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A reinforced optical fiber coupler comprising: a coupler element formed by fusion-bonding and stretching a plurality of optical fibers; a first reinforcing tubular member having a longitudinal slit, wherein the optical fiber coupler is disposed, the coupler element being firmly connected thereto; and a second reinforcing member on the outer periphery of the first reinforcing tubular member.
Claim 2
Dependent Claim
24 words
A coupler as in claim 1, wherein the optical fiber coupler is firmly connected to the first reinforcing tubular member with a hot-melt adhesive.
Claim 3
Dependent Claim
17 words
A coupler as claimed in claim 1 wherein, the second reinforcing member is a heat shrinkable tube.
Claim 4
Dependent Claim
17 words
A coupler as claimed in claim 2 wherein, the second reinforcing member is a heat shrinkable tube.
Claim 5
Independent Claim
57 words
A method of reinforcing an optical fiber coupler element formed by fusion-bonding and stretching a plurality of optical fibers, comprising the steps of: locking the optical fiber coupler element to a first tubular reinforcing member having a slit in the longitudinal direction; and arranging a second reinforcing member on the outer periphery of the first reinforcing member.
Claim 6
Dependent Claim
37 words
A method as in claim 5, wherein the locking step comprises the steps of: applying hot melt adhesive to the interior of the first reinforcing member; and embedding the optical fiber coupler in the hot melt adhesive.
Claim 7
Dependent Claim
40 words
A method as claimed in claim 6, wherein the step of arranging a second reinforcing member on the outer periphery of the first reinforcing member comprises the step of: heat-shrinking a heat shrinkable tube placed over the first reinforcing member.
References Cited (Backward Citations)
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