CN105467524B - Prepare the device and its application method of polarization maintaining optical fibre array - Google Patents
Prepare the device and its application method of polarization maintaining optical fibre array Download PDFInfo
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- CN105467524B CN105467524B CN201510912013.0A CN201510912013A CN105467524B CN 105467524 B CN105467524 B CN 105467524B CN 201510912013 A CN201510912013 A CN 201510912013A CN 105467524 B CN105467524 B CN 105467524B
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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
- G02B6/3628—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
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- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses a kind of device and its application method for preparing polarization maintaining optical fibre array, including fixture, foam, manual rotation platform, microscope I and microscope II, fixture and manual rotation platform are oppositely arranged, and foam is located between fixture and manual rotation platform, and some gaps are provided with foam；V groove substrates are installed on fixture, some V grooves corresponding with gap are provided with V groove substrates；Microscope I is arranged on the front of V groove substrates and the optical axis of microscope I is parallel with V grooves, and microscope II is arranged on the top of V groove substrates and the optical axis of microscope II is vertical with V grooves.The present invention makes the center spacing of polarization maintaining optical fibre array accurate by the V grooves on the gap and V groove substrates of setting on foam, when the polarization axle of polarization maintaining optical fibre array is adjusted, using foam coarse adjustment by the way of manual rotation platform fine tuning is combined, and the rotation of polarization maintaining optical fibre is observed by microscope I, save cost, again being capable of the precise control anglec of rotation, moreover it is possible to ensure that the polarization shaft position of polarization maintaining optical fibre is accurate.
Description
Technical field
The invention belongs to Fibre Optical Sensor and fiber array manufacture technology field, and in particular to one kind prepares polarization maintaining optical fibre array
Device and its application method.
Background technology
With greatly developing for optic communication, the fiber waveguide device of production has small volume, integrated development trend, waveguide
The center of passage is arranged point-blank with constant spacing, for the coupling between high-precision optical waveguide array and optical fiber,
The method that cannot be docked with waveguide using simple optical fiber is achieved a butt joint, when fiber array is connected with optical waveguide array each
Passage is respectively provided with best coupling light rate, and the center spacing of fiber array must have precision very high, and fiber array is in Integrated Light
All it is widely used in device, optical imagery and detection system.Simultaneously as fiber optic communication and Fibre Optical Sensor etc. are led
The development in domain, polarization maintaining optical fibre is obtained a wide range of applications with its distinctive polarization mode transmission characteristic, it is high-precision it is relevant detection and
Optical fiber sensing technology is the basis of optical fibre gyro, the stability of its output signal by the relevant polarization state of two beams in optical fiber stabilization
Property determined, polarization maintaining optical fibre can realize polarised light stabilization transmission, disclosure satisfy that the requirement of high-precision sensing.In optical fibre gyro
Application in, linearly polarized light is injected along a birefringence axis, it is thus necessary to determine that the position of polarization axle, this be accomplished by make optical fiber array
Polarization axle is needed to be aligned during row.
However, present production equipment, the center spacing of fiber array and the position of polarization axle are difficult to precisely determination, make
Polarization maintaining optical fibre array quality out is difficult to ensure that, and equipment is complicated, in-convenience in use.
The content of the invention
For above-mentioned deficiency described in the prior, it is an object of the invention to provide a kind of fiber array center spacing essence
Degree is high, and precisely, equipment is simple, the product quality high device and its application method that prepare polarization maintaining optical fibre array for polarization shaft position.
To realize above-mentioned technical purpose, the technical solution adopted in the present invention is as follows：
A kind of device for preparing polarization maintaining optical fibre array, including fixture, foam, manual rotation platform, microscope I and microscope
II, fixture and manual rotation platform are oppositely arranged, and foam is located between fixture and manual rotation platform, and some are provided with foam
Gap；V groove substrates are installed on fixture, some V grooves corresponding with gap are provided with V groove substrates；Microscope I is set
Optical axis in the front of V groove substrates and microscope I is parallel with V grooves, and microscope II is arranged on the top of V groove substrates and microscope II
Optical axis it is vertical with V grooves.
The V grooves substrate includes substrate body, and substrate body is two stage steps structure, including one-level step and two grades of platforms
Rank, is provided with some V grooves in two stage steps, and cover plate is provided with V grooves, and pressing plate is provided with cover plate.
Spacing between the V grooves is 127 μm or 250 μm.
The fixture includes chuck body, and groove is provided with chuck body, is provided with groove for installing V groove substrates
Rectangular channel, U groove substrates are provided with the groove in front of rectangular channel, be provided with U grooves on U groove substrates, the bottom surface of U grooves is plane；
Set fluted in the both sides of groove, the top and bottom of groove are equipped with screwed hole, and pressing plate is arranged on cover plate top and pressing plate
Two ends be located at corresponding groove in, screw I and screw II fasten pressing plate through corresponding screwed hole.
Spring and steel ball I are provided between screw I and pressing plate, and steel ball I is contacted with pressing plate, screw II and pressing plate it
Between be provided with steel ball II.
In the bottom of the U grooves, the bottom of V grooves and the bottom in gap are generally aligned in the same plane.
The application method of the device of polarization maintaining optical fibre array is prepared, step is as follows：
Step 1, V grooves substrate and cover plate are cleaned up；
, be placed on V groove substrates in the rectangular channel in the groove of fixture with plastic tweezer by step 2；
Step 3, removes coat, and end face is cut flat with whole by one end of N root polarization maintaining optical fibres；
Step 4, one end that polarization maintaining optical fibre removes coat is placed in V grooves, and the other end of polarization maintaining optical fibre passes through foam
It is arranged on behind corresponding gap in manual rotation platform, and in V groove upper cap upper cover plates；
Step 5, adjusts the adjusting bracket of microscope II, observes corresponding CCD displays, stirs polarization maintaining optical fibre, makes polarization-maintaining light
Fibre is put into V grooves completely, and adjusts cap locations, makes cover plate that the V grooves of V groove substrates are completely covered and be alignd, and make polarization-maintaining light
Fine naked fibre part is extended in U grooves, gently turns screw II, and the steel ball II below pressing plate is moved down, and by the effect of spring, is made
Cover plate is relatively fixed with V groove locations；
Step 6, finely tunes the three-dimensional adjustable shelf of microscope I, observes corresponding CCD displays, finds the end face of polarization maintaining optical fibre,
And carry out correction chart picture；
Step 7, rotates polarization maintaining optical fibre；
Step 8, the two stage steps to V groove substrates carry out point UV glue and solidify；
Step 9, the one-level step to V groove substrates carries out point UV glue and solidifies；
Step 10, after the completion of the one-level step UV solidifications of V groove substrates, turns screw II, is moved on steel ball II, take out half into
Product, carry out UV shower；
Step 11, end face grinding and polishing is carried out using grinding and polishing board to polarization maintaining optical fibre array.
In step 7, rotation polarization maintaining optical fibre is specifically, first, manual rotation polarization maintaining optical fibre is located at foam gap
End, carries out coarse adjustment to polarization maintaining optical fibre, and passes through the rotation of the panda eye of the image viewing polarization maintaining optical fibre in CCD displays, works as bear
When straight line where opal center and core district center is with reference horizontal line less parallel, stop coarse adjustment；
Secondly fine tuning rotation is carried out to polarization maintaining optical fibre using manual rotation platform, and by the image viewing in CCD displays
The rotation of the panda eye of polarization maintaining optical fibre, when panda eye rotates tangent with two datum lines, stops operating, and blend compounds band is by polarization-maintaining
Optical fiber is pre-fixed.
In step 8, the step of two stage steps point UV adhesive curings are specific as follows：First, the two stage steps in V groove substrates are leaned on
The end point UV glue of nearly one-level step, in wait ultraviolet glue uniformly penetrating to cover plate and V grooves, secondly, V is observed by microscope II
There is bubble-free in groove；Then, the adjusting rod of UV lamp is adjusted, UV lamp is shone in two stage steps, carry out UV solidifications.
In step 9, the step of one-level step point UV adhesive curings are specific as follows：Specifically, first, the one of V groove substrates
Level step point UV glue, the glue amount of UV glue is no more than cover plate；Then, the adjusting rod of UV lamp is adjusted, UV lamp is shone on one-level step,
Carry out UV solidifications.
The present invention makes the center spacing essence of polarization maintaining optical fibre array by the V grooves on the gap and V groove substrates of setting on foam
Really, when the polarization axle of polarization maintaining optical fibre array is adjusted, using foam coarse adjustment by the way of manual rotation platform fine tuning is combined, and lead to
The rotation that microscope I observes polarization maintaining optical fibre is crossed, that is, saves cost, again being capable of the precise control anglec of rotation, moreover it is possible to ensure polarization-maintaining
The polarization shaft position of optical fiber precisely, meets the requirement of the extinction ratio more than 30 dB of in the market requirement.Use device system of the invention
Standby polarization maintaining optical fibre array quality is good, and the centre-to-centre spacing of fiber array is accurate, and polarization shaft position is accurate, and present device is fabricated to
This is low, and operating method is simple, and product quality is high.
Brief description of the drawings
Fig. 1 is the structural representation of present clip.
Fig. 2 is the installation diagram of V grooves substrate of the present invention, polarization maintaining optical fibre and fixture.
Fig. 3 is the assembling figure of present clip, microscope I and foam.
Fig. 4 is use state figure of the present invention.
Fig. 5 is the structural representation of V grooves substrate of the present invention.
Fig. 6 is the structural representation of panda protecting polarized light fiber of the present invention.
Fig. 7 is the panda protecting polarized light fiber structural representation with datum line.
Specific embodiment
As shown in figs. 1-7, a kind of device for preparing polarization maintaining optical fibre array, including fixture 10, foam 7, manual rotation platform（Figure
In to show）, microscope I 8 and microscope II 11, fixture 10 and manual rotation platform be oppositely arranged, and foam 7 is located at fixture 10 and hand
Between dynamic turntable, some gaps are provided with foam 7；V grooves substrate 5 is installed on fixture 10, on V grooves substrate 5
It is provided with some V grooves corresponding with gap；Microscope I 8 is arranged on the optical axis and V grooves of the front of V grooves substrate 5 and microscope I 8
Parallel, microscope II 11 is arranged on the top of V grooves substrate 5 and the optical axis of microscope II 11 is vertical with V grooves.
The V grooves substrate 5 includes substrate body, and substrate body is two stage steps structure, including one-level step 5-1 and two grades
Step 5-2, is provided with some V grooves on two stage steps 5-2, and the spacing between V grooves is 127 μm or 250 μm.Set on V grooves
There is cover plate, pressing plate 2 is provided with cover plate.
The fixture 10 include chuck body, groove 10-1 is provided with chuck body, be provided with groove 10-1 for
The rectangular channel 10-2 of V grooves substrate 5 is installed, U groove substrate 10-3, U groove substrates are provided with the groove 10-1 in front of rectangular channel 10-2
U grooves are provided with 10-3, the bottom surface of U grooves is plane；In the both sides of groove 10-1, fluted 10-4, the upper end of groove 10-4 are set
Screwed hole is equipped with lower end, pressing plate 2 is arranged on cover plate top and the two ends of pressing plate and is located in corresponding groove 10-4, screw I 3
Pressing plate 2 is fastened through corresponding screwed hole with the 3-1 of screw II.
In the bottom of the U grooves, the bottom of V grooves and the bottom in gap are generally aligned in the same plane.
Preferably, spring and steel ball I are provided between screw I 3 and pressing plate 2, and steel ball I is contacted with pressing plate 2, in screw
Steel ball II is provided between II 3-1 and pressing plate 2.
The application method of the device of polarization maintaining optical fibre array is prepared, step is as follows：
Step 1, V grooves substrate 5 and cover plate are cleaned up.
Step 2, in rectangular channel 10-2 V grooves substrate 5 being placed in the groove 10-1 of fixture 10 with plastic tweezer.
Step 3, removes coat, and end face is cut flat with whole by one end of N roots polarization maintaining optical fibre 6.
Step 4, one end that polarization maintaining optical fibre 6 removes coat is placed in V grooves, and the other end of polarization maintaining optical fibre 6 passes through foam 7
Corresponding gap after be arranged in manual rotation platform, and in V groove upper cap upper cover plates；
Step 5, adjusts the adjusting bracket of microscope II 11, observes corresponding CCD displays, stirs polarization maintaining optical fibre 6, makes polarization-maintaining
Optical fiber 6 is put into V grooves completely, and adjusts cap locations, makes cover plate that the V grooves of V grooves substrate 5 to be completely covered, and make polarization maintaining optical fibre 6
Naked fibre part extend to U grooves, gently turn the 3-1 of screw II, the steel ball II of the lower section of pressing plate 2 is moved down, by the effect of spring,
Cover plate is set to be relatively fixed with V groove locations.
Step 6, finely tunes the three-dimensional adjustable shelf of microscope I 8, observes corresponding CCD displays 9, finds the end of polarization maintaining optical fibre
Face, and carry out correction chart picture.
Step 7, rotates polarization maintaining optical fibre 6.
Specifically, first, manual rotation polarization maintaining optical fibre 6 is located at the one end at the gap of foam 7, and polarization maintaining optical fibre is carried out slightly
Adjust, and pass through the rotation of the panda eye of the image viewing polarization maintaining optical fibre 6 in CCD displays 9, when panda eye center and core district center
When the straight line at place is with 14 less parallel of reference horizontal line, stop coarse adjustment；
Secondly fine tuning rotation is carried out to polarization maintaining optical fibre 6 using manual rotation platform, and is seen by the image in CCD displays 9
The rotation of the panda eye of polarization maintaining optical fibre 6 is examined, when panda eye rotates tangent with two datum lines 15, is stopped operating, blend compounds band
Polarization maintaining optical fibre 6 is pre-fixed；
Then, the 3-1 of screw II on fixture 10 is turned, the steel ball II of the lower section of pressing plate 2 is moved down, by the effect of spring, made
Pressing plate 2 increases the pressure of cover plate, it is ensured that opal is without partially dynamic.
Step 8, the two stage steps 5-2 to V grooves substrate 5 carries out point UV glue and solidifies.
It is specific as follows：First, the two stage steps 5-2 in V grooves substrate 5 is close to the end point UV glue of one-level step 5-1, waits
To in cover plate and V grooves, secondly, observed in V grooves by microscope II 11 has bubble-free to ultraviolet glue uniformly penetrating；Then, UV is adjusted
The adjusting rod of lamp, makes UV lamp shine on two stage steps 5-2, carries out UV solidifications.
Step 9, the one-level step 5-1 to V grooves substrate 5 carries out point UV glue and solidifies.
Specifically, first, in the one-level step 5-1 point UV glue of V grooves substrate 5, the glue amount of UV glue is no more than cover plate；Then,
The adjusting rod of UV lamp is adjusted, UV lamp is shone on one-level step, carry out UV solidifications.
Step 10, after the completion of the one-level step UV solidifications of V grooves substrate 5, turns the 3-1 of screw II, is moved on steel ball II, takes out half
Finished product, carries out UV shower.
Step 11, end face grinding and polishing is carried out using grinding and polishing board to polarization maintaining optical fibre array.
In the present invention, polarization maintaining optical fibre can also use butterfly polarization maintaining optical fibre.Described polarization maintaining optical fibre includes core area, stressed zone
And cladding regions, there are two orthogonal polarization axles, wherein the straight line where the center of two stressed zones and core district center is determined
Justice is slow axis, and another is fast axle, line on the basis of the straight line parallel with slow axis.
The polarization axle of polarization maintaining optical fibre is consistent or vertical in two adjacency channels in polarization maintaining optical fibre array.Manual rotation platform precision is
0.46 °, meet requirement of the polarization angle less than ± 1.81 °.
Polarization maintaining optical fibre array pitch determines by the spacing of V grooves, and interchannel is away from can be 127 μm, 250 μm, its port number
Can be the natural number more than or equal to 2, the polarization axle of the polarization maintaining optical fibre in adjacent V grooves passage can be unanimously or vertical, datum line
Can be made on microscopical display screen.
Claims (9)
1. a kind of device for preparing polarization maintaining optical fibre array, it is characterised in that：Including fixture（10）, foam（7）, manual rotation platform,
Microscope I（8）With microscope II（11）, fixture（10）It is oppositely arranged with manual rotation platform, foam（7）Positioned at fixture（10）And hand
Between dynamic turntable, in foam（7）On be provided with some gaps；In fixture（10）On V groove substrates are installed（5）, in V groove bases
Plate（5）On be provided with some V grooves corresponding with gap；Microscope I（8）It is arranged on V groove substrates（5）Front and microscope I
（8）Optical axis it is parallel with V grooves, microscope II（11）It is arranged on V groove substrates（5）Top and microscope II（11）Optical axis and V
Groove is vertical；The V grooves substrate（5）Including substrate body, substrate body is two stage steps structure, including one-level step（5-1）With
Two stage steps（5-2）, in two stage steps（5-2）Some V grooves are provided with, cover plate is provided with V grooves, pressing plate is provided with cover plate
（2）.
2. the device for preparing polarization maintaining optical fibre array according to claim 1, it is characterised in that：Spacing between the V grooves
It is 127 μm or 250 μm.
3. the device for preparing polarization maintaining optical fibre array according to claim 1, it is characterised in that：The fixture（10）Including folder
Tool body, is provided with groove in chuck body（10-1）, groove（10-1）Inside it is provided with for installing V groove substrates（5）Rectangle
Groove（10-2）, in rectangular channel（10-2）The groove in front（10-1）Inside it is provided with U groove substrates（10-3）, U groove substrates（10-3）On set
U grooves are equipped with, the bottom surface of U grooves is plane；In groove（10-1）Both sides set it is fluted（10-4）, groove（10-4）Upper end and
Lower end is equipped with screwed hole, pressing plate（2）The two ends for being arranged on cover plate top and pressing plate are located at corresponding groove（10-4）It is interior, screw
Ⅰ（3）With screw II（3-1）Through corresponding screwed hole by pressing plate（2）Fasten.
4. the device for preparing polarization maintaining optical fibre array according to claim 3, it is characterised in that：In screw I（3）With pressing plate
（2）Between be provided with spring and steel ball I, and steel ball I and pressing plate（2）Contact, in screw II（3-1）With pressing plate（2）Between be provided with
Steel ball II.
5. the device for preparing polarization maintaining optical fibre array according to claim 3, it is characterised in that：The bottom of the U grooves, V grooves
Bottom and gap bottom be generally aligned in the same plane in.
6. the application method of the device for preparing polarization maintaining optical fibre array according to claim 1, it is characterised in that：Step is such as
Under：
Step 1, by V groove substrates（5）Cleaned up with cover plate；
Step 2, with plastic tweezer by V groove substrates（5）It is placed on fixture（10）Groove（10-1）Interior rectangular channel（10-2）It is interior；
Step 3, by N root polarization maintaining optical fibres（6）One end remove coat, and end face is cut flat with whole；
Step 4, by polarization maintaining optical fibre（6）The one end for removing coat is placed in V grooves, polarization maintaining optical fibre（6）The other end pass through foam
（7）Corresponding gap after be arranged in manual rotation platform, and in V groove upper cap upper cover plates；
Step 5, adjusts microscope II（11）Adjusting bracket, observe corresponding CCD displays, stir polarization maintaining optical fibre（6）, make polarization-maintaining
Optical fiber（6）It is put into completely in V grooves, and adjusts cap locations, makes cover plate by V groove substrates（5）V grooves be completely covered, and make polarization-maintaining
Optical fiber（6）Naked fibre part extend to U grooves, gently turn screw II（3-1）, pressing plate（2）The steel ball II of lower section is moved down, and is passed through
The effect of spring, makes cover plate be relatively fixed with V groove locations；
Step 6, finely tunes microscope I（8）Three-dimensional adjustable shelf, observe corresponding CCD displays（9）, find the end of polarization maintaining optical fibre
Face, and carry out correction chart picture；
Step 7, rotates polarization maintaining optical fibre（6）；
Step 8, to V groove substrates（5）Two stage steps carry out point UV glue and solidify；
Step 9, to V groove substrates（5）One-level step carry out point UV glue and solidify；
Step 10, V groove substrates（5）One-level step UV solidification after the completion of, turn screw II（3-1）, semi-finished product are taken out, carry out UV
Shower；
Step 11, end face grinding and polishing is carried out using grinding and polishing board to polarization maintaining optical fibre array.
7. the application method of the device for preparing polarization maintaining optical fibre array according to claim 6, it is characterised in that：In step 7
In, rotate polarization maintaining optical fibre（6）Specifically, first, manual rotation polarization maintaining optical fibre（6）Positioned at foam（7）One end at gap, to protecting
Polarisation fibre carries out coarse adjustment, and by CCD displays（9）Interior image viewing polarization maintaining optical fibre（6）Panda eye rotation, work as panda
Eye center and the straight line and reference horizontal line where core district center（14）When parallel, stop coarse adjustment；Secondly manual rotation platform is utilized
To polarization maintaining optical fibre（6）Fine tuning rotation is carried out, and by CCD displays（9）Interior image viewing polarization maintaining optical fibre（6）Panda eye
Rotate, when panda eye is rotated and two datum lines（15）When tangent, stop operating, blend compounds band is by polarization maintaining optical fibre（6）Pre-fix.
8. the application method of the device for preparing polarization maintaining optical fibre array according to claim 6, it is characterised in that：In step 8
In, it is specific as follows the step of two stage steps point UV adhesive curings：First, in V groove substrates（5）Two stage steps near one-level step
End point UV glue, in wait ultraviolet glue uniformly penetrating to cover plate and V grooves, secondly, by microscope II（11）Whether there is in observation V grooves
Bubble；Then, the adjusting rod of UV lamp is adjusted, UV lamp is shone in two stage steps, carry out UV solidifications.
9. the application method of the device for preparing polarization maintaining optical fibre array according to claim 6, it is characterised in that：In step 9
In, it is specific as follows the step of the point UV adhesive curings of one-level step：Specifically, first, in V groove substrates（5）One-level step point UV glue,
The glue amount of UV glue is no more than cover plate；Then, the adjusting rod of UV lamp is adjusted, UV lamp is shone on one-level step, carry out UV solidifications.
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|---|---|---|---|
| CN201510912013.0A CN105467524B (en) | 2015-12-11 | 2015-12-11 | Prepare the device and its application method of polarization maintaining optical fibre array |
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| US11880071B2 (en) | 2021-08-23 | 2024-01-23 | Corning Research & Development Corporation | Optical assembly for interfacing waveguide arrays, and associated methods |
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| CN107315227A (en) * | 2017-07-28 | 2017-11-03 | 晓视自动化科技（上海）有限公司 | A kind of optical fiber assembles equipment |
| CN108196337B (en) * | 2018-01-24 | 2020-06-05 | 珠海艾文科技有限公司 | Preparation equipment and preparation method of polarization maintaining optical fiber array |
| CN108663764A (en) * | 2018-05-21 | 2018-10-16 | 武汉驿路通科技股份有限公司 | The method of optical fiber assembling jig and assembling optical fiber |
| US11914193B2 (en) | 2021-06-22 | 2024-02-27 | Corning Research & Development Corporation | Optical assembly for coupling with two-dimensionally arrayed waveguides and associated methods |
| CN113290467A (en) * | 2021-07-26 | 2021-08-24 | 武汉光谷航天三江激光产业技术研究院有限公司 | Optical fiber array alignment grinding clamping system and method |
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| EP0319041A2 (en) * | 1987-12-04 | 1989-06-07 | Fujikura Ltd. | Method and apparatus for fusion-splicing polarization maintaining optical fibers |
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| US11880071B2 (en) | 2021-08-23 | 2024-01-23 | Corning Research & Development Corporation | Optical assembly for interfacing waveguide arrays, and associated methods |
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| CN105467524A (en) | 2016-04-06 |
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