US5386490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automated workstation for the manufacture of optical fiber couplers
Assignee: Viavi Solutions Inc
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Filing: 1993-07-01
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Granted: 1995-01-31
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Expires: 2013-07-01
Abstract
Abstract The present invention provides for a workstation for automatically manufacturing a coupler between at least two optical fibers. The workstation has a control unit for directing operations of said workstation and an operations unit for performing the manufacturing steps for the coupler. The operations unit has a pair of clamps for holding the optical fibers for the formation of a coupling region between the clamps, a torch for heating a predetermined length of the fibers between the clamps to fuse the fibers, motor assemblies responsive to the control unit for driving the clamps, a source laser block for generating an input signal into the optical fibers, and a laser measurement block which measures the signal from laser source block to determine characteristics of the coupling region between the optical fibers.
Inventors
- 👤 Jing-Jong Pan
- 👤 Frank Y. F. Liang
- 👤 Ming M. Shih
- 👤 Zhong M. Mao
- 👤 Kung Shih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:28
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: 22
Claim 1
Independent Claim
121 words
A workstation for automatically forming a coupling region between at least two optical fibers, said workstation comprising control means for directing operations of said workstation; a pair of clamps for holding said optical fibers for the formation of said coupling region between said clamps; means responsive to said control means for heating a predetermined length of said fibers between said clamps to fuse said length; means responsive to said control means for driving said clamps; means responsive to said control means for generating a selectable input signal into said optical fibers; and means for monitoring an output signal responsive to said input signal to determine characteristics of said coupling region between said optical fibers; whereby fiber optic couplers are automatically manufactured.
Claim 2
Dependent Claim
121 words
A workstation for automatically forming a coupling region between at least two optical fibers, said workstation comprising control means for directing operations of said workstation; a pair of clamps for holding said optical fibers for the formation of said coupling region between said clamps; means responsive to said control means for heating a predetermined length of said fibers between said clamps to fuse said length; means responsive to said control means for driving said clamps; means responsive to said control means for generating a selectable input signal into said optical fibers; and means for monitoring an output signal responsive to said input signal to determine characteristics of said coupling region between said optical fibers; whereby fiber optic couplers are automatically manufactured.
Claim 3
Dependent Claim
25 words
The workstation as in claim 1 further comprising means responsive to said control means for positioning and holding a package for said coupling region fibers,
Claim 4
Dependent Claim
23 words
The workstation as in claim 2 wherein said positioning and holding means further comprises means for heating said package for thermally curing epoxy;
Claim 5
Dependent Claim
23 words
The workstation as in claim 1 further comprising means for recording monitored output signals and determined characteristics for each fiber optic coupler manufactured,
Claim 6
Dependent Claim
32 words
The workstation as in claim 4 further comprising means for placing said monitored output signals and determined characteristics into records and fields to form a database of said manufactured fiber optic couplers.
Claim 7
Dependent Claim
24 words
The workstation as in claim 5 further comprising means for calculating statistical data from said records and fields for said manufactured fiber optic couplers.
Claim 8
Dependent Claim
17 words
The workstation as in claim 1 wherein said control means is physically separated from said operations area.
Claim 9
Dependent Claim
19 words
The workstation as in claim 7 wherein said control means communicates with said operations area by an optical fiber.
Claim 10
Dependent Claim
31 words
The workstation as in claim 1 wherein said heating means comprises a torch connected to a gas supply and further comprising means for detecting a gas concentration over a predetermined amount.
Claim 11
Dependent Claim
20 words
The workstation as in claim 9 further comprising means responsive to said detecting means for turning off said gas supply.
Claim 12
Independent Claim
136 words
A method of automatically manufacturing a fiber optic coupler of at least two optical fibers, said method comprising defining operational parameters for said fiber coupler; mounting on a pair of clamps a prepared section of said optical fibers for a coupling region with said coupling region therebetween; heating a section of said optical fibers to fuse said fibers together responsive to said defined operational parameters; driving said clamps apart responsive to said defined operational parameters;; generating an input signal into said optical fibers, said input signal selected by said defined operational parameters; monitoring an output signal responsive to said input signal as said clamps are driven apart to determine at least one operational parameter; stopping said clamps when said one operational parameter matches a defined operational parameter; whereby a fiber optic coupler is manufactured by automation.
Claim 13
Independent Claim
136 words
A method of automatically manufacturing a fiber optic coupler of at least two optical fibers, said method comprising defining operational parameters for said fiber coupler; mounting on a pair of clamps a prepared section of said optical fibers for a coupling region with said coupling region therebetween; heating a section of said optical fibers to fuse said fibers together responsive to said defined operational parameters; driving said clamps apart responsive to said defined operational parameters;; generating an input signal into said optical fibers, said input signal selected by said defined operational parameters; monitoring an output signal responsive to said input signal as said clamps are driven apart to determine at least one operational parameter; stopping said clamps when said one operational parameter matches a defined operational parameter; whereby a fiber optic coupler is manufactured by automation.
Claim 14
Dependent Claim
25 words
The method as in claim 11 further comprising automatically positioning and holding a package for said coupling region of said fibers after said stopping step.
Claim 15
Dependent Claim
21 words
The method as in claim 12 further comprising heating said package for thermally curing epoxy after said positioning and holding step.
Claim 16
Dependent Claim
20 words
The method as in claim 11 comprising recording monitored output signals and determined characteristics for each fiber optic coupler manufactured.
Claim 17
Dependent Claim
28 words
The method as in claim 14 placing said monitored output signals and determined characteristics into records and fields to form a database of said manufactured fiber optic couplers.
Claim 18
Dependent Claim
22 words
The method as in claim 15 further comprising calculating statistical data from said records and fields for said manufactured fiber optic couplers.
Claim 19
Dependent Claim
17 words
The method as in claim 11 wherein said control means is physically separated from said operations area.
Claim 20
Dependent Claim
19 words
The method as in claim 17 wherein said control means communicates with said operations area by an optical fiber.
Claim 21
Dependent Claim
32 words
The method as in claim 11 wherein said heating step comprises using a torch connected to a gas supply and said method further comprises detecting a gas concentration over a predetermined amount.
Claim 22
Dependent Claim
18 words
The method as in claim 19 further comprises turning off said gas supply responsive to said detecting step.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-30 | 1998-08-01 | 1999-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-30 | 2002-08-01 | 2003-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-30 | 2006-08-01 | 2007-01-31 | $7700.00 | Window Closed / Lapsed |