WO2003003058A2 - Manufacturing technique for optical fiber array - Google Patents
Manufacturing technique for optical fiber array Download PDFInfo
- Publication number
- WO2003003058A2 WO2003003058A2 PCT/IL2002/000509 IL0200509W WO03003058A2 WO 2003003058 A2 WO2003003058 A2 WO 2003003058A2 IL 0200509 W IL0200509 W IL 0200509W WO 03003058 A2 WO03003058 A2 WO 03003058A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- axis
- stage
- fiber
- weight
- Prior art date
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
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
- G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/3616—Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench
- G02B6/362—Vacuum holders for optical elements
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3684—Mechanical coupling means for mounting fibres to supporting carriers characterised by the manufacturing process of surface profiling of the supporting carrier
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
- G02B6/3652—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers
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- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3835—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like
- G02B6/3837—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like forwarding or threading methods of light guides into apertures of ferrule centering means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
- Y10T29/49162—Manufacturing circuit on or in base by using wire as conductive path
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53026—Means to assemble or disassemble with randomly actuated stopping or disabling means
- Y10T29/5303—Responsive to condition of work or product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53087—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53087—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer
- Y10T29/53091—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer for work-holder for assembly or disassembly
Definitions
- optics are inspected during the assembly or immediately following assembly.
- An improved manufacturing technique for optical fiber arrays employs optical feedback in a partially assembled cross-connect assembly using an inspec- tion camera. This allows immediate reworking of a problematic part.
- a video microscope is used to check the alignment of the optical fiber array during the manufacturing process. After the optical fiber array has been glued or otherwise affixed, then an optical device may be used to measure the performance of the glued assembly. It is a primary object of some aspects of the present invention to align optical fiber array assemblies during manufacture in a precise and efficient manner.
- the invention provides an apparatus for manufacturing a fiberoptic device, comprising a first stage, and a fiber rotator disposed on the first stage.
- the fiber rotator carries an optical fiber therein, and the stage is arranged to rotate the optical fiber about its optical axis.
- the apparatus further includes a second stage for holding a silicon slab, a fiber gripping assembly that is disposed between the first stage and the second stage for gripping an intermediate portion of the optical fiber.
- the apparatus further includes a first viewer directed toward the silicon slab along a Y-axis, and a second viewer directed toward an end face of the optical fiber in a Z-axis.
- the apparatus includes a third stage, and a weight mounted on the third stage. A free end of the weight impinges on the optical fiber to urge an end portion of the optical fiber onto the silicon slab.
- the third stage is movable on the X- axis and the Z-axis.
- the weight is pivotally mounted and pivots between a first position, wherein the weight is in a non-contacting relation- ship with the optical fiber and a second position wherein the weight impinges on the optical fiber
- the weight includes a first weight that urges the end portion of the optical fiber into a groove formed in the silicon slab, and a second weight that urges the end portion of the optical fiber onto a flat portion of the silicon slab
- the fiber gripping assembly is supplied by a vacuum line, and includes a channel formed therein for establishing fluid communication between the vacuum line and a tip portion of the fiber gripping assembly wherein the optical fiber is held in the tip portion of the fiber gripping assembly by suction produced in the channel
- the tip portion has a groove formed therein, and the optical fiber is received in the groove The groove is dimensioned such that a surface of the optical fiber contacts a first side wall of the groove and contacts a second side wall of the groove
- the first stage is movable on a vertical axis and is rotatable about the vertical axis
- the second stage is movable about the Y-
- the second stage is connected to a vacuum line and the silicon slab is exposed to vacuum transmitted via the vacuum line
- the second viewer includes a power and polarization detector, and the second viewer is linked to a motorized servomecha- msm that actuates at least one of the first stage, and the second stage
- the first viewer is linked to the servomechamsm
- the invention provides a method of manufacturing a fiberoptic array
- the method includes disposing a silicon slab on an assembly station, gripping an optical fiber in a first gripping assembly for rotation about a Z-axis therein, gripping the optical fiber in a second gripping assembly for displacement thereof in an X-axis and a Y-axis, visualizing a position of the optical fiber relative the silicon slab, and responsive to the visualization, adjusting the position to a desired position, and then permanently affixing the optical fiber to the silicon slab in the desired position.
- housing is attached to the silicon slab, and the optical fiber is enclosed in the housing.
- a first groove is formed in the silicon slab.
- a second groove is formed in the housing, such that the optical fiber is embraced by the first groove and the second groove.
- the polarization axis of the optical fiber is determined by visualization, and responsive to the determination, the optical fiber is rotated about the Z-axis until its polarization axis attains a desired alignment
- a weight is applied to an intermedi- ate portion of the optical fiber while adjusting the position of the fiber.
- the invention provides an apparatus for manufacturing a fiberoptic device, which includes a first stage, a fiber rotator disposed on the first stage, the fiber rotator carrying an optical fiber therein, and rotating the optical fiber about an optical axis thereof.
- the apparatus further includes a second stage for holding a silicon slab, a fiber gripping assembly disposed between the first stage and the second stage for gripping an intermediate portion of the optical fiber.
- the fiber gripping assembly is supplied by a first vacuum line, and includes a channel formed therein for establishing fluid communication between the first vacuum line and a tip portion of the fiber gripping assembly.
- the optical fiber is held in the tip portion of the fiber gripping assembly by suction transmitted via the channel, wherein a groove is formed in the tip portion.
- the groove is dimensioned such that a surface of the optical fiber contacts both side walls of the groove.
- a first viewer is directed toward the silicon slab along the Y-axis, and a second viewer is directed toward an end face of the optical fiber in the Z-axis.
- a third stage is movable on an X-axis and the Z-axis.
- a first weight and a second weight are mounted on the third stage, wherein a free end of the first weight and a free end of the second weight impinge on the optical fiber to urge an end portion of the optical fiber against the silicon slab. Responsive to views provided by the first viewer and the second viewer, the first stage, the second stage, the fiber rotator, and the fiber gripping assembly are manipulated to establish the optical fiber in a desired position on the silicon slab.
- the first weight and the second weight are pivotally mounted and independently pivot between a first position of non- contacting relationship with the optical fiber and a second position of impingement on the optical fiber.
- the first stage is movable on a vertical axis and is rotatable about the vertical axis.
- the second stage is movable about the Y-axis.
- the second stage is connected to a second vacuum line, and the silicon slab is exposed to vacuum transmitted via the second vacuum line.
- Fig. 1 is an elevation of a portion of a fiberoptic assembly that is constructed and operative in accordance with a preferred embodiment of the invention
- Fig. 2 is an exploded side elevation of the fiberoptic assembly shown in Fig. 1;
- Fig. 3 is a perspective view illustrating a fiberoptic assembly station that is constructed and operative in accordance with a preferred embodiment of the invention
- Fig. 4 is a top view of the portion of an assembly station similar to that shown in Fig. 3;
- Fig. 5 is a perspective view of a portion of the assembly station shown in Fig. 3;
- Fig. 6 is a side elevation of the assembly station shown in Fig. 5;
- Fig. 7 is a composite sectional view through a portion of a gripping subassembly of the assembly station shown in Fig. 3;
- Fig. 8 is a schematic view of a weight subassembly of the assembly station shown in Fig. 3;
- Fig. 9 is an enlarged schematic view of a portion of the weight subassembly of the assembly station shown in Fig. 3;
- Fig 10 is an end view of an optical fiber having a polarization angle, and
- Fig 1 1 is a partially schematic view similar to Fig 3, illustrating an assembly station that is constructed and operative m accordance with an alternate embodiment of the invention DESCRIPTION OF THE PREFERRED EMBODIMENTS vigorous
- Fig 1 illustrates a portion of a fiberoptic assembly that is aligned during manufacture in accordance with a preferred embodiment of the invention
- the fiber-optic assembly 10 includes a linear array of optical fibers 12 which is secured within a housing 14
- the optical fibers 12 are mutually aligned, such that their geometric centers 16 lie along a straight line 18 It is required that the deviation from co-linea ⁇ ty in the Y-axis of the geometric centers 16 be maintained within a tolerance shown as the distance "A", In the preferred embodiment the distance A" cannot exceed two microns
- Such close tolerances are essential for the fiberoptic assembly 10 to function correctly in devices such as optical switches
- Fig 2 wherein the fiberoptic assembly 10 is shown in further detail in an exploded view
- the desc ⁇ ption of Fig 2 is to be read in conjunction with Fig 1
- the housing 14 has a top portion 20 and a bottom portion 22 Formed in each of the top portion 20 and the bottom portion 22 are V-shaped grooves 24, 26 When the top portion 20 is approximated to the bottom portion 22, an optical fiber 12 is received by the grooves 24, 26, which hold the optical fiber 12 firmly in position
- Each of the optical fibers m the fiberoptic assembly 10 is similarly arranged Nevertheless, it is technicallv difficult to align the optical centers of the fibers as required
- FIG 3 illustrates an optic-mechanical assembly station that is constructed and operative in accordance with a preferred embodiment of the invention
- An assembly station 30, which is adapted for the manufacture of fiberop- tic assemblies, such as the fiberoptic assembly 10 (Fig 1), comprises four sections a optical fiber positioning sub-assembly 31, an optical fiber stabilizing sub-assembly 33, a substrate holding sub-assembly 35 and a viewing section 37
- the Z-axis is nominally ho ⁇ zontal, and coincides with the optical axis of an optical fiber that is being held and manipulated
- the X-axis refers to the horizontal axis that is orthogonal to the Z-axis
- the Y-axis is the vertical axis, and is orthogonal to both the X and Z axes Rotation about the X-axis, Y-axis, and Z-axis is referred to as theta-X, theta-
- Fig 4 is a top view of a portion of an assembly station 30 similar to that shown in Fig 3
- Fig 5 is a perspective view of a portion of the assembly station 30
- the description of Fig 4 and Fig 5 is to be read in conjunction with Fig 1 and Fig 3
- the optical fiber positioning sub-assembly 31 and a portion of the optical fiber stabilizing sub-assembly 33 are supported by a stage 36
- the optical fiber positioning sub-assembly 31 includes an actuator 38, and an actuator 40, which control movements of the stage 36
- the optical fiber positioning sub-assembly 31 also includes a fiber rotator 42, an actuator 46 which controls the fiber rotator 42, and a clamp 148 which secures a fiber 12 in the fiber rotator 42
- the optical fiber stabilizing sub-assembly 33 includes a clamp 64, a clamp 66, and a clamp 68, which are carried on the stage 36, for stabilizing a portion of the fiber 12 near the fiber rotator 42
- the optical fiber stabilizing sub-assembly 33 also includes a gripping assembly 50, a weight 112, and a weight 114 for stabilizing the fiber 12 near the optical assembly into which it is to be incorporated
- a bottom portion 22 of such an optical assembly is shown m a working position in Fig 4 and Fig 5
- the substrate holding sub-assembly 35 includes a vacuum plate stage 52, a hose 62 for supplying vacuum to the vacuum plate stage 52, an actuator 54, an actuator 56 and a rotation control 58 for controlling movements of the vacuum plate stage 52
- the viewing section 37 includes a video camera 72, which provides a view parallel to the Y-axis and a stereo-microscope 70, which is aligned generally with the Z-
- each fiber 12 of the fiberoptic assembly 10 is sequentially secured in proper alignment to the bottom portion 22, which can be a silicon slab
- the bottom portion 22 has a grooved section 32 in which a plurality of V-grooves are aligned parallel to the Z-axis, and has a flat section 34
- the top portion 20 is then affixed to the bottom portion 22 as a separate operation to complete the assembly
- the stage 36 is provided for holding and manipulating components of the fiberoptic assembly 10
- the stage 36 is capable of displacement along the Z-axis
- the bottom portion 22 is carried on a vacuum plate stage 52 having freedom of movement along the Y-axis and the X-axis, as well as having freedom of rotation about the Y-axis
- the actuators 54 56 and the rotation control 58 control the movement of the vacuum plate stage 52 Vacuum is maintained by a vacuum hose 60, which leads from the gripping assembly 50 to a suitable pump (not shown) Vacuum is provided to the vacuum plate stage 52 by a hose 62 for stabilizing the bottom portion 22
- the clamps 64, 66, 68 provide further stabilization for the fiber 12 during the assembly and alignment operations
- the fiberoptic assembly under construction is viewed along the Y-axis on the vacuum plate stage 52 by the stereo-microscope 70 (Fig 3), which is conventional.
- the stereo-microscope 70 can be linked to a monitor (not shown) for the convenience of the operator
- the video camera 72 mounted on a movable stage 74, observes the vacuum plate stage 52 horizontally, m line with the Z-axis
- the video camera 72 uses the video camera 72, the end face of the optical fiber 12 can be visualized as it is being positioned in the bottom portion 22
- the video camera 72 has freedom of adjustment in the X, Y, and Z-axes independently, in operation there is no relative movement between the stage 74 and the vacuum plate stage 52
- the stereo- microscope 70 and the video camera 72 the operator can view the process of assembly of the fiberoptic assembly 10 along two orthogonal axes, the Y-axis and the Z-axis
- the video camera 72 is capable of high magnification, and is connected to a display monitor (not shown) Cameras suitable
- Fig 6 is a side elevation of the assembly station 30, and illustrates additional components of the optical fiber stabilizing sub- assembly 33
- the gripping assembly 50 is disposed behind the vacuum plate stage 52 Vacuum is employed to urge the fiber 12 against the g ⁇ pping assembly 50 at a point near the end face of the fiber 12, such that stability of the fiber 12 with respect to the vacuum plate stage 52 is assured during manipulation
- the weights 112, 114 are mounted on a stage 116, and are pivotable, as explained in further detail hereinbelow Weights 112, 114 are preferably identical in structure
- the stage 116 is provided with an X-actuator 160 and a Z-actuator 162 that adjust the position of the stage 116 in the X- and Z-axes, such that the free ends 122, 124 (Fig 4) can be accurately positioned over a desired portion of the vacuum plate stage 52
- the weights 112, 114 impinge on the vacuum
- the weight 112 is positioned in order to position the optical fiber 12 onto the more proximal non-grooved portion of the silicon slab 126 by applying the weight 1 12 to the optical fiber 12
- Fig 8 illustrates the structure of the weights 1 12. 114 in greater detail The descnption of Fig 8 is to be read in conjunction with Fig 6
- a wheel 128 is affixed to both the weights 112, 114, and pivots about an axis 130
- the wheel 128 is counterweighted to provide precision in movement and weighting
- a shaft 132 is rigidly attached to the wheel 128, and extends radially m the direction of the vacuum plate stage 52
- the shaft 132 is dimensioned so that its free end 134 impinges on the vacuum plate stage 52 as the wheel 128 is revolved
- Fig 9 illustrates the structure of the free end
- Fig 9 is to be read in conjunction with Fig 6 and Fig 8
- a tip 136 extends downward from the shaft 132 and terminates in a face 138
- the face 138 is a plane, which is angled with respect to the radial line formed by the shaft 132 with respect to its pivot, axis 130 (Fig 8)
- the radial direc- hon of the shaft 132 is indicated by the line 140
- a plurality of cylindrical bores 142 is formed m the shaft 132
- the bores 142 receive cylindrical weights, which are selected to adjust the pressure that is exerted by the tip 136 against a fiber 12 that is being assembled into the silicon slab 126
- Fig 7 is a sectional view of a tip 76 of the gripping assembly 50
- Fig 7 is a sectional view of a tip 76 of the gripping assembly 50
- Fig 7 is a section
- the jaws 78, 80 provide closed fluid channels leading to a vacuum pump (not shown) via the hose 60
- the grooves 84, 86 open into a V-shaped groove 88 that is formed at the free end of the tip 76
- An object, such as the smaller fiber 90 or a larger fiber 92 is received into the groove 88
- the fiber 90 makes contact with the side walls 94. 96 at points 98, 100, creating a semi-closed region 102 where the air pressure is lower than the ambient air pressure Consequently the fiber 90 is urged against the side walls 94. 96 and is held in a stable position thereon
- the side walls 94. 96 form tangent planes with the cylindrical outer surface of the fiber 90 The tangent planes are represented as tangent lines on the sectional view of
- the groove 88 be dimensioned such that tangents are formed at the point of contact on the side walls 94, 96 for the gripping assembly 50 to operate optimally
- the fiber 92 contacts the side walls 94, 96 at points 104, 106 and therefore is held successfully by the gripping assembly 50
- a fiber larger than the liber 92 would merely contact the tip 76 at cusps 108. 110 and would not form the requisite tangent plane Its stability could not be assured Operation.
- a bottom portion 22 of a silicon slab is mounted on the vacuum plate stage 52 and held m place using the vacuum transmitted by the hose 62
- the stereo-microscope 70 is adjusted to view the bottom portion 22, and in particular the grooved section 32
- the fiber 12 is inserted through the slit 146 of the fiber rotator 42, initially positioned such that it lies in a designated groove of the grooved section 32, with its free end coinciding with the free edge 23 of the bot- torn portion 22
- the fiber is then secured in the fiber rotator 42 using the clamp 148
- the positioning is accomplished by applying vacuum to the gripping assembly 50, and then by clamping the intermediate portion of the fiber 12 using the clamp 64, the clamp 66 and the clamp 68 (Fig 4)
- Actuation of the gripping assembly 50 provides the fine control needed to precisely place the fiber 12 in a desired position
- the video camera 72 (Fig 3) is adjusted such that its direction of view is aligned with the Z-axis, and the free edge 23 of the bottom portion 22 and the free end of the fiber 12 are visualized enjace
- the magnification of the video camera 72 is adjusted such that the relationship of the fiber 12 to its associated V-groove is seen clearly
- the weight 112 and the weight 114 are applied to the
- Fig 10 shows an end view of an optical fiber 12
- the description of Fig 10 is to be read in conjunction with Fig 4, Fig 5, and Fig 6
- the view of the fiber-optic assembly 10 is similar to that seen by the video camera 72
- Two circles 1 4. 156 define the pola ⁇ zation axis of the optical fiber 12, which may be adjusted by the operator such that they are in vertical alignment, indicated by their o ⁇ - entahon with respect to the vertical line 158
- the actuator 38 and the actuator 40 control movement of the stage 36 independently of the vacuum plate stage 52, so that the optical fiber 12 is allowed to move in the Z-axis or to undergo theta-Z motion relative to the bottom portion 22.
- the operator also controls, the actuator 54 and the actuator 56 of the vacuum plate stage 52 so that the bottom portion 22 and the weights 1 12. 1 14 can move in the X-axis and the Y-axis relative to the optical fiber 12. If it is necessary for the operator to move the weights 112, 114 on the X-axis and the Z- axis relative to the bottom portion 22, the X-actuator 160 and the Z-actuator 162 are provided to control movements of the stage 116, which carries the weights 112, 114. The operator then rotates the fiber 12 about its optical axis using the fiber rotator 42 un- til its polarization axis is in a desired orientation.
- the fiber 12 In its final position, the fiber 12 rests in its designated V-groove of the bottom portion 22, is aligned with other optical fibers of the assembly in the Y-axis, and is rotationally aligned, such that its polarization axis has a desired orientation with respect to the Y-axis.
- Suitable glue such as UV-glue, is then applied in order to secure the fiber 12 to the bottom portion 22, and allowed to cure.
- the gripping assembly 50, the clamp 64, the clamp 66, and the clamp 68, the weight 112 and the weight 114 are released, and the fiber 12 removed from the fiber rotator 42.
- Fig. 11 semi-schematically illustrates an assembly station that is constructed and operative in accordance with an alternate embodiment of the invention.
- An assembly station 170 is similar to the assembly station 30 of the first embodiment. However, the video camera has been replaced by a power and polarization detector 164. The output of the detector 164 is coupled to a suitable signal processor (not shown), which applies control signals to industrial motors 174 which drive the various actuators of the assembly station 170 The actuators can thus be controlled automatically, without intervention of a human operator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002314506A AU2002314506A1 (en) | 2001-06-28 | 2002-06-25 | Manufacturing technique for optical fiber array |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/892,866 US6799370B2 (en) | 2001-06-28 | 2001-06-28 | Manufacturing technique for optical fiber array |
US09/892,866 | 2001-06-28 |
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Publication Number | Publication Date |
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WO2003003058A2 true WO2003003058A2 (en) | 2003-01-09 |
WO2003003058A3 WO2003003058A3 (en) | 2003-05-15 |
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PCT/IL2002/000509 WO2003003058A2 (en) | 2001-06-28 | 2002-06-25 | Manufacturing technique for optical fiber array |
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US (1) | US6799370B2 (en) |
AU (1) | AU2002314506A1 (en) |
WO (1) | WO2003003058A2 (en) |
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JP2007332284A (en) * | 2006-06-15 | 2007-12-27 | Daicel Chem Ind Ltd | Method for precipitation of photoresist resin and method for producing photoresist resin composition |
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JP3904398B2 (en) * | 2001-03-14 | 2007-04-11 | 東京特殊電線株式会社 | Manufacturing method of multi-core polarization maintaining fiber assembly |
KR100401188B1 (en) * | 2001-12-17 | 2003-10-10 | 삼성전자주식회사 | Optical fiber alignment system |
US6954262B2 (en) * | 2002-03-18 | 2005-10-11 | Mike Buzzetti | Automated fiber optic inspection system |
US6989895B2 (en) * | 2002-03-18 | 2006-01-24 | Mike Buzzetti | Automated fiber optic inspection system |
US8099857B2 (en) | 2008-02-09 | 2012-01-24 | Cirris Systems Corporation | Apparatus for electrical pin installation and retention confirmation |
US8824849B2 (en) | 2010-04-16 | 2014-09-02 | Lastar, Inc. | Fiber optic connector processing apparatus |
CN106468807B (en) * | 2015-08-17 | 2018-05-29 | 泰科电子(上海)有限公司 | The manufacturing method of automatic injection system and porous ferrule assembly |
CN109445038B (en) * | 2018-10-30 | 2023-10-03 | 广东硕泰智能装备有限公司 | Optical fiber head assembly production line |
US10976498B2 (en) * | 2019-06-14 | 2021-04-13 | Cisco Technology, Inc. | Tray and clip structure for optomechanical components |
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- 2002-06-25 AU AU2002314506A patent/AU2002314506A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
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US6799370B2 (en) | 2004-10-05 |
WO2003003058A3 (en) | 2003-05-15 |
AU2002314506A1 (en) | 2003-03-03 |
US20030002847A1 (en) | 2003-01-02 |
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