CN104181645A - Calibrating tool, calibrating method, fiber inserting assembly and fiber connector - Google Patents
Calibrating tool, calibrating method, fiber inserting assembly and fiber connector Download PDFInfo
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- CN104181645A CN104181645A CN201310226442.3A CN201310226442A CN104181645A CN 104181645 A CN104181645 A CN 104181645A CN 201310226442 A CN201310226442 A CN 201310226442A CN 104181645 A CN104181645 A CN 104181645A
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Abstract
The invention discloses a calibrating tool used for calibrating the position of a fiber in the inner hole of a fiber inserting core. The calibrating tool comprises a high-precision external diameter aligning element and a fiber position high-precision calibrating element. The high-precision external diameter aligning element is used for aligning the outer cylinder of the fiber inserting core to the outer cylinder of the fiber position high-precision calibrating element. One end of the fiber passes through the inner hole of the fiber inserting core and is inserted into the calibrating hole of the fiber position high-precision calibrating element in order that the axis of the fiber inserted into the inner hole of the fiber inserting core us is aligned to a central axis determined by the outer cylinder of the fiber inserting core. Therefore, a high-precision fiber connector is produced by the low-precision fiber inserting core and production cost is reduced. The invention also discloses a calibrating method and a high-precision fiber connector produced by using the calibrating tool and the calibrating method and provided with precision equal to or more than that of a single-mode fiber connector.
Description
Technical field
The invention belongs to joints of optical fibre field, the present invention relates to a kind of for fiber optic calibration (comprise conventional single-core fiber, many fibre cores single fiber, the many optical fiber of bunchy or many fibre bundles, presents is mentioned below " optical fiber " and had and indicate contained identical finger meaning herein) truing tool of the position in the endoporus of fiber stub and calibration steps and the fiber stub assembly and the joints of optical fibre that produce by this truing tool and calibration steps.Particularly, the present invention proposes the lock pin of a kind of use based on low precision and (there is larger endoporus aperture and bias, as similar multimode lock pin or than the specification of the lower requirement of multimode lock pin) manufacture the novel technique of the single-mode optical fiber connector of low cost, high-performance (low insertion loss), easy operating, thoroughly change single-mode optical fiber connector and must use the prior art scheme of high precision lock pin (the connector of ultra-low loss uses expensive ultrahigh precision single mode lock pin).
Background technology
Be applied to the lock pin of the joints of optical fibre, claim again pin body.Lock pin is the core component of the joints of optical fibre, and it is a kind of high precision components forming by precision processing technology.In joints of optical fibre manufacturing process, conventionally adopt and will peel off also clean bare fibre through the endoporus that is full of glue, then solidified glue, is fixed on optical fiber in lock pin, then makes required optical fiber connector via a series of programs such as polishing, polishing, tests.Because all manufacture processes can produce inevitable error and introduce artificially tolerance for dimensional fits/assembling needs, for example, diameter of bore is greater than optical fiber external diameter so that optical fiber can penetrate in endoporus, need to there is inborn deviation in optical fiber external diameter and interior hole dimension like this, for another example, optical fiber axle center and endoporus are owing to there being space to exist decentraction and endoporus and alignment fiducials (connector taking cylindrical as alignment fiducials is mainly referred to lock pin external diameter) to have processing and manufacturing error etc., these factors all can cause the lateral excursion in optical fiber axle center, thereby the insertion loss while affecting joints of optical fibre docking.
Because the mode field diameter of single-mode fiber is more much smaller (for most of optical fiber communications than the mode field diameter of multimode optical fiber, it is roughly 1/5 to 1/6 relation, for example, the representative diameter of the fibre core of the single-mode fiber of standard is about 9 μ m, the diameter of the fibre core of the multimode optical fiber of standard is generally 50 μ m or 62.5 μ m), therefore, the alignment precision of single-mode fiber requires will be far away higher than the alignment precision requirement to multimode optical fiber, like this, the lock pin precision that the lock pin precision that single-mode optical fiber connector uses will be used higher than multimode optical fiber connector far away.
It is mainly very high in the dimensional requirement aspect the concentricity of lock pin diameter of bore and lock pin endoporus and exterior circular column that single mode lock pin requires the relative dimensions of lock pin, below the dimension precision requirement in the following aspects by contrast single mode lock pin and multimode lock pin:
1) lock pin exterior circular column diameter dimension tolerance
Single mode: lock pin exterior circular column diameter dimension tolerance reaches +/-0.0005mm, that is, and-0.0005mm～0.0005mm;
Multimode: lock pin exterior circular column diameter dimension typical tolerances requires to reach +/-0.001mm, that is, and-0.001mm～0.001mm.
2) lock pin diameter of bore:
Single mode: lock pin diameter of bore dimensional tolerence, at 0.000～0.001mm, even requires 0.0000～0.0005mm for hole dimension in low-loss single mode lock pin;
Multimode: lock pin diameter of bore size typical tolerances is at 0.000-0.004mm.
3) concentricity requirement of optical fiber and exterior circular column:
Single mode: concentricity General Requirements reaches 0.001mm, for low-loss single mode lock pin, concentricity requirement even reaches 0.0005mm;
Multimode: concentricity General Requirements reaches 0.004mm.
In order to ensure to guarantee that in manufacture process single-mode optical fiber connector reaches the requirement of industry standard index of correlation, manufacture field at the joints of optical fibre at present, conventionally use respectively the lock pin of different accuracy requirement for list, multimode optical fiber, multimode optical fiber connector is distinguished with lock pin and single-mode optical fiber connector lock pin.Its outward appearance of single mode/multimode lock pin that the joints of optical fibre use, it is identical that structure seems, but single mode lock pin requires very high to the relative dimensions of lock pin, especially the concentricity accuracy requirement of lock pin endoporus aperture and exterior circular column is high (conventionally will be in 1.5 microns, ultralow insertion loss while connection in order to meet docking, precision even will be controlled at sub-micron rank-be less than 1 micron), the most direct result of high-precision requirement is, the high cost of single mode connector that causes of single mode lock pin cost/price is high, especially outstanding for ultra-low loss connector, lock pin cost is almost difference at double.
Therefore, in the prior art, can not use the lock pin (as precision is equal to or less than the precision of multimode lock pin) of low precision to produce high-precision single-mode optical fiber connector.
Summary of the invention
Object of the present invention is intended to solve at least one aspect of the above-mentioned problems in the prior art and defect.
One object of the present invention be to provide a kind of for fiber optic calibration the truing tool in the position of the fiber stub of low precision, it can improve the positional precision of optical fiber in the endoporus of fiber stub, makes it meet or exceed the positional precision in the endoporus of single mode lock pin.
Another object of the present invention be to provide a kind of for fiber optic calibration the calibration steps in the position of the fiber stub of low precision, it can improve the positional precision of optical fiber in the endoporus of fiber stub, makes it meet or exceed the positional precision in the endoporus of single mode lock pin.
According to an aspect of the present invention, a kind of truing tool is provided, position for fiber optic calibration at the endoporus of fiber stub, wherein, described truing tool comprises high precision external diameter alignment member and fiber position high-precision calibration element, and described high precision external diameter alignment member is for making the exterior circular column of fiber stub aim at the exterior circular column of fiber position high-precision calibration element; One end of described optical fiber is passed the endoporus of fiber stub and is inserted in the calibration hole of fiber position high-precision calibration element, aims at for the axis of optical fiber and the determined central axis of the exterior circular column of fiber stub that make the endoporus that inserts fiber stub.
According to an example of the present invention embodiment, the precision of described fiber stub is equal to or less than the precision of the multimode lock pin of standard; And the precision of described fiber position high-precision calibration element is equal to or higher than the precision of the single mode lock pin of standard.
According to another example embodiments of the present invention, described high precision external diameter alignment member is high precision alignment sleeve barrel tool, described fiber position high-precision calibration element inserts from one end of high precision external diameter alignment member, and described fiber stub inserts described high precision external diameter alignment member from the other end, after inserting, the determined central axis of exterior circular column of described fiber stub and the determined central axis of exterior circular column of described high-precision calibration element are aimed at.
According to another example embodiments of the present invention, described high precision external diameter alignment member is the integral element only being formed by parts.
According to another example embodiments of the present invention, described high precision external diameter alignment member serve as reasons at least two independently parts form split type elements.
According to another example embodiments of the present invention, described high precision external diameter alignment member comprises: base portion, in described base portion, be formed with a recess, and on the diapire of described recess, form a locating slot; With top briquetting, described top briquetting is placed in the recess of base portion, for fiber position high-precision calibration element is remained on to locating slot.
According to another example embodiments of the present invention, described locating slot is V-type locating slot or U-shaped locating slot.
According to another example embodiments of the present invention, described fiber position high-precision calibration element is the ultraprecise lock pin instrument of precision higher than the precision of the single mode lock pin of standard.
According to another example embodiments of the present invention, insert the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face of fiber stub at a distance of preset distance.
According to another example embodiments of the present invention, the part in the calibration hole that is inserted into described fiber position high-precision calibration element of described optical fiber has predetermined length.
According to another example embodiments of the present invention, described truing tool also comprises: keep seat, for keeping regularly described high precision external diameter alignment member and described fiber position high-precision calibration element.
According to another example embodiments of the present invention, described high precision external diameter alignment member and described fiber position high-precision calibration element are fixed on removably and keep on seat.
According to another example embodiments of the present invention, described high precision external diameter alignment member and described fiber position high-precision calibration element are configured to separate parts, or are constructed to integral piece.
According to another example embodiments of the present invention, described truing tool also comprises: Separation control part, be arranged on the inside that keeps between seat and the back seat of fiber stub or be arranged on high precision external diameter alignment member, for controlling the distance between fiber position high-precision calibration element and the end face of fiber stub that inserts described high precision external diameter alignment member.
According to another example embodiments of the present invention, described truing tool also comprises: fiber stub extractor, be enclosed within on the back seat of fiber stub, for be calibrated at optical fiber and be fixed after take out fiber stub assembly.
According to another example embodiments of the present invention, described Separation control part and described fiber stub or assembly extractor are configured to separate parts, or are constructed to integral piece.
According to another example embodiments of the present invention, described fiber position high-precision calibration element is the integral element only being formed by parts, and described calibration hole is circular port or the feature holes that meets optical fiber external form special shape.According to another example embodiments of the present invention, described fiber position high-precision calibration element serve as reasons at least two independently parts form split type elements.
According to another example embodiments of the present invention, described fiber position high-precision calibration element comprises: pedestal, in described pedestal, be formed with a recess, and a calibration hole is formed on the diapire of recess; And briquetting, described briquetting is placed in the recess of described pedestal, for the optical fiber that inserts calibration hole is remained on to calibration hole.
According to another example embodiments of the present invention, described calibration hole is U-shaped slotted eye or V-type slotted eye.
According to another aspect of the present invention, provide a kind of for fiber optic calibration the calibration steps in the position of the endoporus of fiber stub, described method comprises the steps:
S100: an independently truing tool is provided, and the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the endoporus of fiber stub.
According to an example of the present invention embodiment, described truing tool is such alignment instrument.
According to another example embodiments of the present invention, described step S200 comprises the following steps:
S201: use high precision external diameter alignment member that the exterior circular column of fiber stub is aimed at the exterior circular column of fiber position high-precision calibration element; With
S200: one end of the optical fiber of the endoporus through fiber stub is inserted in the calibration hole of fiber position high-precision calibration element, aims at for the axis of optical fiber and the determined central axis of the exterior circular column of fiber stub that make the endoporus that inserts fiber stub.
According to another example embodiments of the present invention, keeping between seat and the back seat of fiber stub or being provided with Separation control part in the inside of high precision external diameter alignment member, for controlling the distance between fiber position high-precision calibration element and the end face of fiber stub that inserts described high precision external diameter alignment member.
According to another example embodiments of the present invention, insert the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face of fiber stub at a distance of preset distance.
According to another example embodiments of the present invention, the part in the calibration hole that is inserted into described fiber position high-precision calibration element of described optical fiber has predetermined length.
According to another example embodiments of the present invention, in the endoporus of described fiber stub, be filled with glue or equivalent curable body, for described optical fiber being fixed on to the endoporus of described fiber stub, described glue was filled in the endoporus of fiber stub before or after the endoporus of optical fiber insertion fiber stub.
According to another example embodiments of the present invention, after step S200, also comprise step:
S300: thus glue curing is fixed on optical fiber in fiber stub.
According to another aspect of the present invention, a kind of fiber stub assembly is provided, comprise fiber stub and be arranged in the optical fiber of endoporus of fiber stub, the precision of described fiber stub is equal to or less than the precision of standard multi-module lock pin, described fiber stub assembly utilizes such alignment instrument and/or such alignment method to make, the positional precision of the optical fiber of single-mode fiber ferrule assembly that optical fiber positional precision in lock pin of the fiber stub assembly of making meets or exceeds standard in lock pin.
According to another example embodiments of the present invention, after calibration, the axle center deviation of inserting between the optical fiber of endoporus and the exterior circular column of fiber stub of described fiber stub is sub-micron rank.
According to another example embodiments of the present invention, the diameter dimension tolerance of the exterior circular column of described fiber stub is at-0.001mm～0.001mm.
According to another example embodiments of the present invention, the diameter dimension tolerance of the endoporus of described fiber stub is at 0.000～0.030mm.
According to another example embodiments of the present invention, the diameter dimension tolerance of the exterior circular column of described fiber stub is at-0.001mm～0.001mm, and the diameter dimension tolerance of the endoporus of described fiber stub is at 0.000～0.030mm.
According to another example embodiments of the present invention, after in the endoporus that by glue, optical fiber is fixed on to fiber stub, the maximum spacing between the internal face of the endoporus of described fiber stub and the outer peripheral face of described optical fiber is more than or equal to the eccentric distance between the axle center of described optical fiber and the axle center of the exterior circular column of described fiber stub.
According to another aspect of the present invention, provide a kind of joints of optical fibre, the described joints of optical fibre comprise aforementioned fiber stub assembly.
According to another aspect of the present invention, a kind of joints of optical fibre are provided, comprise that precision is equal to or less than the low-precision optical fiber lock pin of the multimode lock pin of standard, wherein, in manufacture process, utilize such alignment instrument and/or such alignment method to calibrate the position in the endoporus of low-precision optical fiber lock pin optical fiber, thereby make the positional precision of optical fiber in the endoporus of low-precision optical fiber lock pin meet or exceed the positional precision of optical fiber in the endoporus of the single mode lock pin of standard, and after calibration, optical fiber is fixed in low-precision optical fiber lock pin, thereby the precision that makes the joints of optical fibre that produce meets or exceeds the precision of the single-mode optical fiber connector of standard.
According to an example of the present invention embodiment, described optical fiber is conventional single-core fiber.
According to another example embodiments of the present invention, described optical fiber is the multicore fiber that comprises multiple fibre cores.
According to another example embodiments of the present invention, described optical fiber is the bunchy optical fiber that comprises multifiber.
The present invention compared with prior art distinguishes and is, single-mode fiber is placed in to the endoporus of the fiber stub of low precision, space between endoporus and the optical fiber of low precision lock pin can be much larger than the space (space is filled and solidified by glue or equivalent firming body optical fiber is fixed in endoporus) between the high precision single mode lock pin and the optical fiber that use in prior art, and the optical fiber head end guiding that protrudes from insertion core end face is entered in the calibration hole of high-precision optical fiber position high-precision calibration element independently, close adjustment is carried out in position to optical fiber in the fiber stub of low precision, and it is fixed in the low-precision optical fiber lock pin of system, thereby produce high precision connector.
Technique and the instrument broken through based on this invention, realized and used the ferrule assembly of low precision to make high-performance (low insertion loss), single-mode optical fiber connector cheaply.Based on the joints of optical fibre of this invention fabrication techniques, compared with the connector made from existing use high precision lock pin, there is better the precision reproducibility at the controllability of the positional precision of optical fiber processed, predictability, individuality to individuality, so greatly improved the performance of connector and interaction (low insertion loss and low random interworking insertion loss) at random.
For the lock pin taking outside cylinder as alignment fiducials as basis this type optical fiber connector for, the most basic function of high-precision truing tool comprises high precision external diameter and aims at two Partial Feature compositions of unit's (as high precision external diameter alignment member instrument) and fiber position high-precision calibration unit (as ultraprecise lock pin instrument), be used for respectively aiming at fiber stub exterior circular column and the position of fiber optic calibration in endoporus, make the deviation of both physical axis drop to sub-micron rank.
Above-mentioned two parts feature can form suite of tools by two or more assembling parts, also can be designed to integrated tool piece.
The present invention utilizes novel technique to realize and adopts lock pin (precision is equal to or less than the precision of multimode lock pin) the production low cost of low precision, low-loss high-quality single-mode optical fiber connector part.
By hereinafter, with reference to accompanying drawing description made for the present invention, other object of the present invention and advantage will be apparent, and can help that the present invention is had to comprehensive understanding.
Brief description of the drawings
Fig. 1 is according to the schematic diagram of the truing tool for the manufacture of fiber stub of an example of the present invention embodiment;
Fig. 2 is the schematic diagram of the truing tool shown in Fig. 1, wherein demonstrates maintenance seat, Separation control part and the fiber stub extractor of truing tool;
Fig. 3 is the cut-open view of the truing tool shown in Fig. 1;
Fig. 4 has shown that the another kind of truing tool changes routine cut-open view;
Fig. 5 shown truing tool another change routine cut-open view;
Fig. 6 has shown according to the schematic diagram of the truing tool of another example embodiments of the present invention;
Fig. 7 shows the cut-open view of the truing tool in Fig. 6;
Fig. 8 has shown according to the cut-open view of the truing tool of another example embodiments of the present invention;
Fig. 9 shows the cut-open view that utilizes the fiber stub assembly that method of the present invention produces;
Figure 10 shows according to the schematic diagram of another kind of optical fiber of the present invention;
Figure 11 shows the schematic perspective view of many loose optical fiber;
Figure 12 shows the end view of the loose optical fiber of many in Figure 11;
Figure 13 shows that the loose optical fiber of many in Figure 11 and Figure 12 is calibrated the schematic perspective view of the bunchy optical fiber forming afterwards in calibration hole of the present invention; With
Figure 14 shows the end view of the bunchy optical fiber forming after the calibration in Figure 13.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In instructions, same or analogous drawing reference numeral is indicated same or analogous parts.Followingly with reference to accompanying drawing, the explanation of embodiment of the present invention is intended to present general inventive concept of the present invention to make an explanation, and does not should be understood to a kind of restriction of the present invention.
Fig. 1 is according to the schematic diagram of the truing tool for the manufacture of fiber stub of an example of the present invention embodiment; Fig. 2 is the schematic diagram of the truing tool shown in Fig. 1, wherein demonstrates maintenance seat 500, Separation control part 610 and the fiber stub extractor 600 of truing tool.
As depicted in figs. 1 and 2, this truing tool is used for the position of fiber optic calibration 400 at the endoporus of fiber stub 300.This truing tool mainly comprises high precision external diameter alignment member 100 and fiber position high-precision calibration element 200.The precision of fiber position high-precision calibration element 200 must be far above the precision of fiber stub 300, for example, in illustrated embodiment, the precision of fiber stub 300 is equal to or less than the precision of the multimode lock pin of standard, and the precision of fiber position high-precision calibration element 200 reaches or higher than the precision of the single mode lock pin of standard, and the single-mode fiber that optical fiber 400 is standard, or diameter than the single-mode fiber of standard more carefully or thicker optical fiber.
In the embodiment of the exemplary shown in Fig. 1-2, high precision external diameter alignment member 100 is high precision alignment sleeve barrel tool, high precision external diameter alignment member 100 has first end and second end relative with first end, fiber position high-precision calibration element 200 inserts high precision external diameter alignment member 100 from first end (left end figure), and fiber stub 300 inserts high precision external diameter alignment member 100 from the second end (right-hand member figure), the exterior circular column of fiber stub 300 can be aimed at the exterior circular column of fiber position high-precision calibration element 200 like this, thereby the optical fiber 400 in the endoporus of calibration insertion fiber stub 300 and the concentricity of exterior circular column, thereby the axis that makes to insert the optical fiber 400 in the endoporus of fiber stub 300 is aimed at mutually with the axis of the calibration hole 201 of fiber position high-precision calibration element 200, preferably, making to insert optical fiber 400 in the endoporus of fiber stub 300 and the axle center deviation between the exterior circular column of fiber stub 300 is sub-micron rank, or making to insert the axis of optical fiber 400 in the endoporus of fiber stub 300 and the deviation between the axis of the calibration hole 201 of fiber position high-precision calibration element 200 is sub-micron rank.
Please continue referring to Fig. 1 and Fig. 2, one end of optical fiber 400 is passed the endoporus of fiber stub 300 and is inserted in calibration hole 201, like this, can the position of fiber optic calibration 400 in the endoporus of fiber stub 300, the axis that makes to insert the optical fiber 400 in the endoporus of fiber stub 300 is aimed at mutually with the axis of the calibration hole 201 of fiber position high-precision calibration element 200, preferably, making to insert the axis of optical fiber 400 in the endoporus of fiber stub 300 and the deviation between the axis of the calibration hole 201 of fiber position high-precision calibration element 200 is sub-micron rank, or preferably, making to insert optical fiber 400 in the endoporus of fiber stub 300 and the axle center deviation between the exterior circular column of fiber stub 300 is sub-micron rank.
Fig. 1 and Fig. 2 have shown the enforcement schematic diagram for the manufacture of the truing tool of the joints of optical fibre.As depicted in figs. 1 and 2, multimode optical fiber lock pin 300 by single-mode fiber 400 through low accuracy requirement, then enter in the calibration hole 201 of high-precision fiber position high-precision calibration element 200 by the guide frame of fiber position high-precision calibration element 200 front ends, this high-precision calibration hole 201 calibrated be positioned at low precision fiber stub 300 (as multimode or etc. low precision) the optical fiber 400 of endoporus (thering is larger endoporus aperture and bias) with respect to the low-precision optical fiber lock pin determined central axis of 300 exterior circular column position, eliminate because the low-precision optical fiber lock pin 300 internal orifice dimensions fiber position of bringing bigger than normal easily produces random eccentric possibility, make single-mode fiber copy exactly the positional precision of the truing tool on opposite, because the physical axis of the exterior circular column of low-precision optical fiber lock pin 300 is protected by accurate high precision external diameter alignment member 100, like this, be placed in the endoporus of low-precision optical fiber lock pin 300 optical-fibre precise also collimated with physical centre's axis of the exterior circular column at low-precision optical fiber lock pin 300 processed.
The glue of fixed fiber or equivalent curable body 320 (referring to Fig. 1) can be preset in the endoporus of low precision lock pin 300, also can after optical fiber 400 is calibrated and collimates, be filled in the space between optical fiber 400 and the endoporus of low precision lock pin 300 by injection mode and/or capillarity from rear end.
Owing to having at low precision lock pin 300 end faces of system the glue overflowing, this end face can not with fiber position truing tool end contact, therefore, in the embodiment shown in Fig. 1 and Fig. 2, insert the fiber position high-precision calibration element 200 of high precision external diameter alignment member 100 and the end face of fiber stub 300 at a distance of predetermined distance d 1.
Because the clearance distance between fiber position high-precision calibration element 200 and the end face of fiber stub 300 and optical fiber 400 penetrate all directly impact calibration effect and technology difficulty of fiber lengths in the calibration hole 201 of fiber position high-precision calibration element 200, the fiber lengths in the calibration hole 201 that therefore needs in force effectively to control fiber position truing tool and the distance between the low precision insertion core end face of system and insert fiber position high-precision calibration element 200.In the embodiment shown in Fig. 1 and Fig. 2, the part in the calibration hole 201 that is inserted into fiber position high-precision calibration element 200 of optical fiber 400 has predetermined length d2, and this predetermined length d2 can determine according to actual alignment accuracy requirement and technology difficulty.
As shown in Figure 2, truing tool also comprises maintenance seat 500, for keeping regularly high precision external diameter alignment member 100 and fiber position high-precision calibration element 200.As shown in the figure, by screw element 510, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 are fixed in the endoporus that keeps seat 500.Like this, can, by dismounting screw element 510, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 be disassembled from maintenance seat 500.
Although in the embodiment shown in Fig. 1-2, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 are configured to separate parts, but, the present invention is not limited to this, and high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 also can be constructed to integral piece.
After calibration, by solidified glue, optical fiber 400 is fixed in fiber stub 300, after fixing, to from truing tool, extract at the fiber stub 300 of system, continue the joints of optical fibre lock pin that cuts fine and grinding technics and can realize and complete the high-precision low cost that needs making according to existing.
Fig. 2 has shown a kind of for by the fiber stub extractor 600 extracted from truing tool of fiber stub 300 in system, this fiber stub extractor 600 is enclosed within on the back seat 310 of fiber stub 300, by pulling out outward fiber stub extractor 600, just the fiber stub assembly making can be extracted from truing tool.
As shown in Figure 2, truing tool also comprises Separation control part 610, this Separation control part 610 is arranged on and keeps between seat 500 and the back seat 310 of fiber stub 300, for controlling the distance d1 between fiber position high-precision calibration element 200 and the end face of fiber stub 300 that inserts high precision external diameter alignment member 100.In actual applications, can regulate the distance d1 between fiber position high-precision calibration element 200 and the end face of fiber stub 300 that inserts high precision external diameter alignment member 100 by the thickness of control interval control piece 610.
But, the invention is not restricted to this illustrated embodiment, Separation control part 610 also can be arranged on the inside of high precision external diameter alignment member 100.
In the embodiment shown in Figure 2, Separation control part 610 and fiber stub extractor 600 are constructed to integral piece.But the present invention is not limited to this, Separation control part 610 and fiber stub extractor 600 also can be configured to separate parts.
High-precision truing tool shown in Fig. 1-2 is to assemble by high-precision high precision external diameter alignment member 100 and ultraprecise fiber position high-precision calibration element 200, realizes the high precision external diameter of lock pin and aims at and these two functions of fiber position high-precision calibration.
Like this, calibrating behind the position of optical fiber, through the related process flow process of solidified glue and a series of end face processings, the low cost based on low precision lock pin, high performance single-mode optical fiber connector have just completed.
Fig. 3 is the cut-open view of the truing tool shown in Fig. 1.In the embodiment shown in Fig. 1 to Fig. 3, the fiber position high-precision calibration element 200 of truing tool is the integral element only being formed by parts, and calibration hole 201 is circular port or the feature holes that meets optical fiber external form special shape.
Fig. 4 has shown that the another kind of truing tool changes routine cut-open view.
Compared with the truing tool shown in Fig. 1 to Fig. 3, the difference of the truing tool shown in Fig. 4 is only the structure difference of fiber position high-precision calibration element.
As shown in Figure 4, the ferrule body of fiber position high-precision calibration element 200 ' comprises pedestal 2001 and the briquetting 2002 separating with pedestal 2001.In pedestal 2001, be formed with a recess, on the diapire of recess, form a calibration hole 201 '.Briquetting 2002 is placed in the recess of pedestal 2001, for the optical fiber that inserts calibration hole 201 ' is remained on to calibration hole 201 '.
In a preferred embodiment, after briquetting 2002 is assembled in the recess of pedestal 2001, pedestal 2001 forms a complete right cylinder together with briquetting 2002, and is suitable for inserting in high precision external diameter alignment member 100.In the embodiment shown in fig. 4, calibration hole 201 ' is formed U-shaped slotted eye roughly.
Fig. 5 shown truing tool another change routine cut-open view.
Compared with the truing tool shown in Fig. 1 to Fig. 3, the difference of the truing tool shown in Fig. 5 is only the structure difference of fiber position high-precision calibration element.
As shown in Figure 5, fiber position high-precision calibration element 200 " ferrule body comprise pedestal 2011 and the briquetting 2012 separating with pedestal 2011.In pedestal 2011, be formed with a recess, on the diapire of recess, form a calibration hole 201 ".Briquetting 2012 is placed in the recess of pedestal 2011, for inserting calibration hole 201 " optical fiber remain on calibration hole 201 ".
In a preferred embodiment, after briquetting 2012 is assembled in the recess of pedestal 2011, pedestal 2011 forms a complete right cylinder together with briquetting 2012, and is suitable for inserting in high precision external diameter alignment member 100.
In the embodiment shown in fig. 5, calibration hole 201 " be formed V-type slotted eye roughly.But the present invention is not limited to illustrated embodiment, calibration hole also can be formed semicircle slotted eye roughly or the slotted eye of other suitable shape.
Although in the embodiment shown in Fig. 4 and Fig. 5, fiber position high-precision calibration element is by two split type elements that independently parts form, but, the present invention is not limited to this, and fiber position high-precision calibration element can be also by three or three split type elements that above individual components forms.
In the embodiment shown in fig. 1, the high precision external diameter alignment member 100 of truing tool is the monoblock type alignment sleeve instrument only being formed by parts.But the present invention is not limited to this, the high precision external diameter alignment member of truing tool can be also only by least two split type alignment sleeve instruments that independently parts form.
For example, Fig. 6 has shown according to the schematic diagram of the truing tool of another example embodiments of the present invention; Fig. 7 shows the cut-open view of the truing tool in Fig. 6.
Compared with the truing tool shown in Fig. 1, the difference of Fig. 6 and the truing tool shown in Fig. 7 is mainly that the structure of high precision external diameter alignment member is different.
As shown in Figure 6 and Figure 7, in illustrated exemplary embodiment, high precision external diameter alignment member 100 ' by two independently parts form.Illustrated high precision external diameter alignment member 100 ' mainly comprises base portion 1001 and the top briquetting 1002 separating with base portion 1001.In base portion 1001, be formed with a recess 1003, on the diapire of recess 1003, form a locating slot 1004.Top briquetting 1002 is placed in the recess 1003 of base portion 1001, for the fiber position high-precision calibration element 200 that is placed on locating slot 1004 is remained in locating slot 1004.
In the embodiment shown in Fig. 6 and Fig. 7, whole high precision external diameter alignment member 100 ' can be rectangular shape.In a preferred embodiment, in the time that top briquetting 1002 is placed in the recess 1003 of base portion 1001, the end face of top briquetting 1002 is roughly concordant with the end face of base portion 1001.
In the embodiment shown in Fig. 6 and Fig. 7, locating slot is formed V-type locating slot.
Fig. 8 has shown according to the cut-open view of the truing tool of another example embodiments of the present invention.
In the exemplary embodiment shown in Fig. 8, high precision external diameter alignment member by two independently parts form.Illustrated high precision external diameter alignment member mainly comprises base portion 1011 and the top briquetting 1012 separating with base portion 1011.In base portion 1011, be formed with a recess 1013, on the diapire of recess 1013, form a locating slot 1014.Top briquetting 1012 is placed in the recess 1013 of base portion 1011, for fiber position high-precision calibration element 200 is remained on to locating slot 1014.
Compare with the truing tool shown in Fig. 7 with Fig. 6, the key distinction of the truing tool shown in Fig. 8 is only the shape difference of the locating slot of high precision external diameter alignment member 100.In the exemplary embodiment shown in Fig. 8, locating slot is formed U-shaped locating slot.But the present invention is not limited to this, locating slot is formed circular arc or other suitable shape.
In the embodiment of previous examples, described a kind of for fiber optic calibration the calibration steps in the position of the endoporus of fiber stub, described method mainly comprises the steps:
S100: an independently truing tool is provided, and the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the endoporus of fiber stub.
According to another example embodiments of the present invention, abovementioned steps S200 can comprise the following steps:
S201: use high precision external diameter alignment member 100 that the exterior circular column of fiber stub 300 is aimed at the exterior circular column of fiber position high-precision calibration element 200; With
S202: one end of the optical fiber 400 of the endoporus through fiber stub 300 is inserted in the calibration hole 201 of fiber position high-precision calibration element 200, aims at for the axis of optical fiber 400 and the determined central axis of exterior circular column of fiber stub 300 that make the endoporus that inserts fiber stub 300.
According to another example embodiments of the present invention, after step S200, also comprise step:
S300: by solidified glue, optical fiber 400 is fixed in fiber stub 300, glue was filled in the endoporus of fiber stub 300 before or after optical fiber 400 inserts the endoporus of fiber stub 300.
According to another example embodiments of the present invention, after calibration, the axle center deviation between optical fiber 400 and the exterior circular column of fiber stub of the endoporus of insertion fiber stub 300 is sub-micron rank.
Fig. 9 shows the cut-open view that utilizes the fiber stub assembly that method of the present invention produces.As shown in Figure 9, after glue 301 solidifies, optical fiber 400 is fixed in the endoporus of fiber stub 300, after optical fiber 400 is fixed in the endoporus of fiber stub 300, in one embodiment of the invention, maximum spacing (maximum ga(u)ge of the cushion rubber that, glue 301 forms) between the outer peripheral face of the internal face of the endoporus of fiber stub 300 and optical fiber 400 is more than or equal to the eccentric distance between the axle center C400 of optical fiber 400 and the axle center C300 of the exterior circular column of fiber stub 300.
In the embodiment of an example of the present invention, the diameter dimension tolerance of the exterior circular column of fiber stub 300 is at-0.001mm～0.001mm.
In the embodiment of another exemplary of the present invention, the diameter dimension tolerance of the endoporus of fiber stub 300 is at 0.000～0.030mm.
Object of protection of the present invention is not limited only to such alignment instrument and/or such alignment method, also comprises the fiber stub assembly that utilizes such alignment instrument and/or such alignment method to make and the joints of optical fibre that comprise this fiber stub assembly.
In the embodiment of another exemplary of the present invention, a kind of joints of optical fibre have been described, comprise that precision is equal to or less than the low-precision optical fiber lock pin of standard multi-module lock pin, wherein, in manufacture process, utilize such alignment instrument and/or such alignment method to calibrate the position in the endoporus of low-precision optical fiber lock pin optical fiber, thereby make the positional precision of optical fiber in the endoporus of low-precision optical fiber lock pin meet or exceed the positional precision in the endoporus of the single mode lock pin of standard, and after calibration, optical fiber is fixed in low-precision optical fiber lock pin, thereby the precision that makes the joints of optical fibre that produce meets or exceeds the precision of the single-mode optical fiber connector of standard.
In the embodiment shown in fig. 1, optical fiber is conventional single-core fiber 400.But the present invention is not limited to this, optical fiber can be also the optical fiber of other type.For example, the other two kinds of optical fiber shown in Figure 10 and Figure 13.
Figure 10 shows according to the schematic diagram of another kind of optical fiber of the present invention.As shown in figure 10, optical fiber is the multicore fiber 410 that comprises multiple fibre cores 411.In illustrated embodiment, this multicore fiber 410 comprises 19 fibre cores 411, and still, the present invention is not limited to this, and this multicore fiber 410 also can comprise two or more fibre cores 411.In illustrated embodiment, many fibre cores 411 are wrapped up and fix in place by external coating 412, and external coating 412 forms an exterior circular column.
Figure 11 shows the schematic perspective view of many loose optical fiber; Figure 12 shows the end view of the loose optical fiber of many in Figure 11; Figure 13 shows that the loose optical fiber of many in Figure 11 and Figure 12 is calibrated the schematic perspective view of the bunchy optical fiber forming afterwards in calibration hole of the present invention; Show the calibration end view of the bunchy optical fiber of formation afterwards in Figure 13 with Figure 14.
As shown in Figure 11 and Figure 12, seven loose optical fiber 421 are emitted on together brokenly, and the mutual alignment between these loose optical fiber 421 is uncertain.But, after the optical fiber that these are loose 421 is inserted in the calibration hole 201 of truing tool of the present invention, as shown in Figure 13 and Figure 14, these seven loose optical fiber 421 are just held suitable position, form a bunchy optical fiber (or being called many fibre bundles) 420 that comprises seven optical fiber 421.
As shown in Figure 13 and Figure 14, in this bunchy optical fiber 420, mutually tangent between any two adjacent optical fiber 421.For example, in illustrated embodiment, an optical fiber is in centre, and another six roots of sensation optical fiber is around this root optical fiber, and these seven optical fiber are tangent between two.
Although in illustrated embodiment, this bunchy optical fiber 420 comprises seven optical fiber 421,, the present invention is not limited to this, and this bunchy optical fiber 420 also can comprise two or multifiber 421 more.
In one embodiment of the invention, the every optical fiber 421 in bunchy optical fiber 420 can be the multicore fiber 410 shown in the conventional single-core fiber 400 shown in Fig. 1 or Figure 10.
In order to calibrate the loose optical fiber of many shown in Figure 11 and Figure 12 421, calibration hole 201 can be the hole of circular port, quincunx hole, polygonal hole or other suitable shape, as long as the shape of this calibration hole can become many loose calibration fibers all mutual tangent bunchy optical fiber 420 of any two adjacent optical fiber 421.
In one embodiment of the invention, the optical fiber with multiple fibre cores (single fiber multicore, many fibre bundles) after the accuracy calibration of position, be cured in low precision lock pin before, specific distribution orientation is adjusted at the radial orientation angle of optical fiber, and the radial orientation angle that is solidificated in rear optical fiber in lock pin meets the interworking docking of multi-core connector.
The present invention compared with prior art, has abandoned and has manufactured single mode and multimode optical fiber connector by the lock pin of distinguishing different accuracy specification in prior art.
Especially, when needs are made low-loss or ultra-low-loss fiber connector, the method that existing technical staff uses is that the accuracy specification by improving lock pin (dwindles endoporus aperture, and improve the concentricity of endoporus and exterior circular column) realize the target of ultra-low loss, the distinct disadvantage of doing is like this, one, that means a kind of expensive; They are two years old, because ultraprecise lock pin endoporus becomes less, and the variation that the actual outside diameter of optical fiber also exists batch, it for wearing fibre (through whole lock pin endoporus), is a challenge greatly, cause disconnected fine probability to increase, particularly dark damage can cause the reliability of light connector to reduce; Its three, for manufacturing in batches, always there is some individual eccentric discreteness, as long as occur, the random interworking insertion loss of light interface unit is destroyed, etc.
And employing the technology of the present invention, utilize high-precision truing tool to collimate the physical location of the single-mode fiber that is positioned at low precision lock pin (such as multimode lock pin), owing to having copied the positional precision of the high-precision calibration instrument on opposite at optical fiber processed, realize in the lock pin of low precision, produced the single-mode optical fiber connector part of high precision, high-performance (low-loss).This invention, significantly reduce lock pin accuracy requirement, reduce the Material Cost of product from technical design, similarly, no matter this technology is to use manually or fibre is worn in robotization, wear fine action and become more easy, be particularly advantageous in the robotization of technological process, increasing production capacity and further reducing costs becomes possibility; Need further point out, this technology is known the performance of product by the precision of instrument, and the precision with controllability, predictability, individuality to individuality can repetition.Like this, this invention has realized low cost and high performance interface unit manufacturing technology simultaneously.
It will be appreciated by those skilled in the art that, embodiment described above is exemplary, and those skilled in the art can make improvements, the structure described in various embodiment can be carried out independent assortment in the case of the conflict aspect not recurring structure or principle.
Although describe the present invention by reference to the accompanying drawings, in accompanying drawing, disclosed embodiment is intended to the preferred embodiment for the present invention to carry out exemplary illustration, and can not be interpreted as a kind of restriction of the present invention.
Although some embodiment of this present general inventive concept are shown and explanation, those skilled in the art will appreciate that, in the case of the principle and spirit that do not deviate from this present general inventive concept, can make a change these embodiment, scope of the present invention limits with claim and their equivalent.
It should be noted that word " comprises " does not get rid of other element or step, and word " " or " one " do not get rid of multiple.In addition, any element numbers of claim should not be construed as and limits the scope of the invention.
Claims (39)
1. a truing tool, the position for fiber optic calibration at the endoporus of fiber stub, the precision of described fiber stub (300) is equal to or less than the precision of the multimode lock pin of standard, it is characterized in that,
Described truing tool comprises high precision external diameter alignment member (100) and fiber position high-precision calibration element (200), the precision of described fiber position high-precision calibration element (200) is equal to or higher than the precision of the single mode lock pin of standard
Described high precision external diameter alignment member (100) is aimed at the exterior circular column of fiber position high-precision calibration element (200) for the exterior circular column that makes fiber stub (300);
One end of described optical fiber (400) is passed the endoporus of fiber stub (300) and is inserted in the calibration hole (201) of fiber position high-precision calibration element (200), aims at for the axis of optical fiber (400) and the determined central axis of exterior circular column of fiber stub (300) that make the endoporus that inserts fiber stub (300).
2. truing tool according to claim 1, is characterized in that, described high precision external diameter alignment member (100) is high precision alignment sleeve barrel tool,
Described fiber position high-precision calibration element (200) inserts from one end of high precision external diameter alignment member (100), and described fiber stub (300) inserts described high precision external diameter alignment member (100) from the other end, after inserting, the determined central axis of exterior circular column of described fiber stub (300) and the determined central axis of exterior circular column of described high-precision calibration element (200) are aimed at.
3. truing tool according to claim 1, is characterized in that,
Described high precision external diameter alignment member (100) is the integral element only being formed by parts.
4. truing tool according to claim 1, is characterized in that,
Described high precision external diameter alignment member serve as reasons at least two independently parts form split type elements.
5. truing tool according to claim 4, is characterized in that, described high precision external diameter alignment member (100 ') comprising:
Base portion (1001,1011), in described base portion (1001,1011), be formed with a recess (1003,1013), on the diapire of described recess (1003,1013), form a locating slot (1004,1014); With
Top briquetting (1002,1012), described top briquetting (1002,1012) is placed in the recess (1003,1013) of base portion (1001,1011), for fiber position high-precision calibration element (200) being remained on to locating slot (1004,1014).
6. truing tool according to claim 5, is characterized in that, described locating slot (1004,1014) is V-type locating slot or U-shaped locating slot.
7. truing tool according to claim 2, is characterized in that, described fiber position high-precision calibration element (200) is the ultraprecise lock pin instrument of precision higher than the precision of the single mode lock pin of standard.
8. truing tool according to claim 7, is characterized in that,
Insert the fiber position high-precision calibration element (200) of described high precision external diameter alignment member (100) and the end face of fiber stub (300) at a distance of preset distance (d1).
9. truing tool according to claim 8, is characterized in that,
Part in the calibration hole (201) that is inserted into described fiber position high-precision calibration element (200) of described optical fiber (400) has predetermined length (d2).
10. truing tool according to claim 9, is characterized in that, also comprises:
Keep seat (500), for keeping regularly described high precision external diameter alignment member (100) and described fiber position high-precision calibration element (200).
11. truing tools according to claim 10, is characterized in that,
Described high precision external diameter alignment member (100) and described fiber position high-precision calibration element (200) are fixed on removably and keep on seat (500).
12. truing tools according to claim 11, is characterized in that,
Described high precision external diameter alignment member (100) and described fiber position high-precision calibration element (200) are configured to separate parts, or are constructed to integral piece.
13. truing tools according to claim 10, is characterized in that, also comprise:
Separation control part (610), be arranged on the inside that keeps between seat (500) and the back seat (310) of fiber stub (300) or be arranged on high precision external diameter alignment member (100), for controlling the distance (d1) between fiber position high-precision calibration element (200) and the end face of fiber stub (300) that inserts described high precision external diameter alignment member (100).
14. truing tools according to claim 13, is characterized in that, also comprise:
Fiber stub extractor (600), the back seat (310) that is enclosed within fiber stub (300) is upper, for take out the ferrule assembly that comprises optical fiber after optical fiber (400) is calibrated and is fixed.
15. truing tools according to claim 14, is characterized in that,
Described Separation control part (610) and described fiber stub extractor (600) are configured to separate parts, or are constructed to integral piece.
16. truing tools according to claim 2, is characterized in that,
Described fiber position high-precision calibration element (200) is the integral element only being formed by parts, and described calibration hole (201) is circular port or the feature holes that meets optical fiber external form special shape.
17. truing tools according to claim 1, is characterized in that, described fiber position high-precision calibration element serve as reasons at least two independently parts form split type elements.
18. truing tools according to claim 17, is characterized in that, described fiber position high-precision calibration element (200 ', 200 ") comprising:
Pedestal (2001,2011), is formed with a recess in described pedestal (2001,2011), and calibration hole (201 ', 201 ") be formed on the diapire of recess; With
Briquetting (2002,2012), described briquetting (2002,2012) be placed in the recess of described pedestal (2001,2011), for inserting calibration hole (201 ', 201 " optical fiber) remains in calibration hole (201 ', 201 ").
19. truing tools according to claim 18, is characterized in that, and described calibration hole (201 ', 201 ") be U-shaped slotted eye or V-type slotted eye.
20. 1 kinds for fiber optic calibration the calibration steps in the position of the endoporus of fiber stub, described method comprises the steps:
S100: an independently truing tool is provided, and the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the endoporus of fiber stub.
21. calibration stepss according to claim 20, wherein, described truing tool is the truing tool described in any one in claim 1-19.
22. calibration stepss according to claim 21, wherein, described step S200 comprises the following steps:
S201: use high precision external diameter alignment member (100) that the exterior circular column of fiber stub (300) is aimed at the exterior circular column of fiber position high-precision calibration element (200); With
S202: one end of the optical fiber (400) of the endoporus through fiber stub (300) is inserted in the calibration hole (201) of fiber position high-precision calibration element (200), aims at for the axis of optical fiber (400) and the determined central axis of exterior circular column of fiber stub (300) that make the endoporus that inserts fiber stub (300).
23. calibration stepss according to claim 22, is characterized in that,
Keeping between seat (500) and the back seat (310) of fiber stub (300) or be provided with Separation control part (610) in the inside of high precision external diameter alignment member (100), for controlling the distance (d1) between fiber position high-precision calibration element (200) and the end face of fiber stub (300) that inserts described high precision external diameter alignment member (100).
24. calibration stepss according to claim 23, is characterized in that,
Insert the fiber position high-precision calibration element (200) of described high precision external diameter alignment member (100) and the end face of fiber stub (300) at a distance of preset distance (d1).
25. calibration stepss according to claim 24, is characterized in that,
Part in the calibration hole (201) that is inserted into described fiber position high-precision calibration element (200) of described optical fiber (400) has predetermined length (d2).
26. calibration stepss according to claim 25, is characterized in that,
In the endoporus of described fiber stub (300), be filled with glue (320), for described optical fiber (400) being fixed on to the endoporus of described fiber stub (300),
Described glue was filled in the endoporus of fiber stub (300) before or after the endoporus of optical fiber (400) insertion fiber stub (300).
27. calibration stepss according to claim 26 wherein, also comprise step after step S200:
S300: thus glue curing is fixed on optical fiber (400) in fiber stub (300).
28. 1 kinds of fiber stub assemblies, comprise single hole fiber stub and be arranged in the optical fiber of endoporus of fiber stub, the precision of described fiber stub is equal to or less than the precision of the multimode lock pin of standard, it is characterized in that, described fiber stub assembly utilizes the calibration steps of any one in truing tool and/or the aforementioned claim 20-27 of any one in aforementioned claim 1-19 to make, and the precision of the fiber stub assembly of making meets or exceeds the precision of the single-mode fiber ferrule assembly of standard.
29. fiber stub assemblies according to claim 28, wherein,
After calibration, the axle center deviation of inserting between optical fiber (400) and the exterior circular column of fiber stub of endoporus of described fiber stub (300) is sub-micron rank.
30. fiber stub assemblies according to claim 28, wherein,
The diameter dimension tolerance of the exterior circular column of described fiber stub (300) is at-0.001mm～0.001mm.
31. fiber stub assemblies according to claim 28, wherein,
The diameter dimension tolerance of the endoporus of described fiber stub (300) is at 0.000～0.030mm.
32. fiber stub assemblies according to claim 28, wherein,
The diameter dimension tolerance of the exterior circular column of described fiber stub (300) is at-0.001mm～0.001mm; And
The diameter dimension tolerance of the endoporus of described fiber stub (300) is at 0.000～0.030mm.
33. fiber stub assemblies according to claim 32, wherein,
After in the endoporus that by glue or equivalent curable body (301), optical fiber (400) is fixed on to fiber stub (300), the maximum spacing between the internal face of the endoporus of described fiber stub (300) and the outer peripheral face of described optical fiber (400) is more than or equal to the eccentric distance between the axle center (C400) of described optical fiber (400) and the axle center (C300) of the exterior circular column of described fiber stub (300).
34. 1 kinds of joints of optical fibre, is characterized in that, the described joints of optical fibre comprise the fiber stub assembly that claim 28 limits.
35. 1 kinds of joints of optical fibre, comprise that precision is equal to or less than the low-precision optical fiber lock pin of the multimode lock pin of standard, it is characterized in that,
In manufacture process, utilize the calibration steps of any one in truing tool and/or the aforementioned claim 20-27 of any one in aforementioned claim 1-19 to calibrate the position in the endoporus of low-precision optical fiber lock pin optical fiber, thereby make the positional precision of optical fiber in the endoporus of low-precision optical fiber lock pin meet or exceed the positional precision in the endoporus of the single-mode fiber lock pin of standard, and after calibration, optical fiber is fixed in low-precision optical fiber lock pin, thereby the precision that makes the joints of optical fibre that produce meets or exceeds the precision of the single-mode optical fiber connector of standard.
36. according to the joints of optical fibre described in claim 34 or 35, it is characterized in that, described optical fiber is conventional single-core fiber (400).
37. according to the joints of optical fibre described in claim 34 or 35, it is characterized in that, described optical fiber is the multicore fiber (410) that comprises multiple fibre cores (411), i.e. single fiber multicore.
38. according to the joints of optical fibre described in claim 34 or 35, it is characterized in that, described optical fiber is the bunchy optical fiber (420) that comprises multifiber (421), the aggregate of many optical fiber that single-core fiber forms.
39. according to the joints of optical fibre described in claim 37 or 38, the optical fiber with multiple fibre cores (single fiber multicore, many fibre bundles) after the accuracy calibration of position, be cured in low precision lock pin before, specific distribution orientation is adjusted at the radial orientation angle of optical fiber, and the radial orientation angle that is solidificated in rear optical fiber in lock pin meets the interworking docking of multi-core connector.
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| CN201310226442.3A CN104181645B (en) | 2013-05-28 | 2013-06-07 | Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre |
| PCT/IB2014/061971 WO2014195893A1 (en) | 2013-06-07 | 2014-06-05 | Indexing tool, calibrating method, ferrule assembly and fiber optic connector |
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| CN201310203217 | 2013-05-28 | ||
| CN2013102032178 | 2013-05-28 | ||
| CN201310203217.8 | 2013-05-28 | ||
| CN201310226442.3A CN104181645B (en) | 2013-05-28 | 2013-06-07 | Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre |
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| US10768378B2 (en) | 2014-07-01 | 2020-09-08 | Commscope Telecommunications (Shanghai) Co. Ltd. | Fiber alignment device, ferrule device and method of manufacturing the ferrule device |
| US11307363B2 (en) | 2016-10-11 | 2022-04-19 | Commscope Technologies Llc | Ferrule assembly, method for manufacturing a ferrule assembly and optical fiber fixing mold |
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