CA2012696A1 - Method and apparatus for fabricating microlenses on optical fibers - Google Patents

Method and apparatus for fabricating microlenses on optical fibers

Info

Publication number
CA2012696A1
CA2012696A1 CA2012696A CA2012696A CA2012696A1 CA 2012696 A1 CA2012696 A1 CA 2012696A1 CA 2012696 A CA2012696 A CA 2012696A CA 2012696 A CA2012696 A CA 2012696A CA 2012696 A1 CA2012696 A1 CA 2012696A1
Authority
CA
Canada
Prior art keywords
fiber
laser beam
end portion
lens
optical fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2012696A
Other languages
French (fr)
Other versions
CA2012696C (en
Inventor
Herman Melvin Presby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2012696A1 publication Critical patent/CA2012696A1/en
Application granted granted Critical
Publication of CA2012696C publication Critical patent/CA2012696C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features

Abstract

This invention concerns with a process and apparatus for fabricating microlenses on optical fibers. A pulsed laser beam and an end portion of a fiber are arranged relative each to another so that the laser beam is incident on the end portion of the fiber at an acute angle .theta. to the longitudinal axis of the fiber. The angle is selected to attain a desired curvature of a lens formed by ablation and heating of the end portion of the fiber by the laser beam. A movement of the fiber and the laser relative each to another results in progressive engagement of the end portion of the fiber with the laser for a preselected distance so as to produce a short taper with a lens at the end thereof. In the preferred embodiment, the fiber rotated about its axis within a passage of the holder which moves the end-portion of the fiber into and through the laser beam resulting in the said lens. The precise repeatability of the lens formation may be controlled by a computer.
CA002012696A 1989-04-05 1990-03-21 Method and apparatus for fabricating microlenses on optical fibers Expired - Fee Related CA2012696C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/333,230 US4932989A (en) 1989-04-05 1989-04-05 Method and apparatus for fabricating microlenses on optical fibers
US333,230 1989-04-05

Publications (2)

Publication Number Publication Date
CA2012696A1 true CA2012696A1 (en) 1990-10-05
CA2012696C CA2012696C (en) 1997-12-09

Family

ID=23301898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002012696A Expired - Fee Related CA2012696C (en) 1989-04-05 1990-03-21 Method and apparatus for fabricating microlenses on optical fibers

Country Status (8)

Country Link
US (1) US4932989A (en)
EP (1) EP0391598B1 (en)
JP (1) JPH0827412B2 (en)
KR (1) KR960006843B1 (en)
CA (1) CA2012696C (en)
DE (1) DE69008915T2 (en)
ES (1) ES2055864T3 (en)
HK (1) HK43395A (en)

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Also Published As

Publication number Publication date
JPH0827412B2 (en) 1996-03-21
EP0391598A1 (en) 1990-10-10
DE69008915T2 (en) 1994-09-01
CA2012696C (en) 1997-12-09
DE69008915D1 (en) 1994-06-23
EP0391598B1 (en) 1994-05-18
HK43395A (en) 1995-03-31
KR960006843B1 (en) 1996-05-23
KR900016766A (en) 1990-11-14
JPH02287406A (en) 1990-11-27
US4932989A (en) 1990-06-12
ES2055864T3 (en) 1994-09-01

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