CN102730959B - Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) - Google Patents
Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) Download PDFInfo
- Publication number
- CN102730959B CN102730959B CN201210185121.9A CN201210185121A CN102730959B CN 102730959 B CN102730959 B CN 102730959B CN 201210185121 A CN201210185121 A CN 201210185121A CN 102730959 B CN102730959 B CN 102730959B
- Authority
- CN
- China
- Prior art keywords
- prefabricated rods
- ftth
- mode fiber
- optical fiber
- optical fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
- C03B37/0122—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of photonic crystal, microstructured or holey optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01228—Removal of preform material
- C03B37/01231—Removal of preform material to form a longitudinal hole, e.g. by drilling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/42—Photonic crystal fibres, e.g. fibres using the photonic bandgap PBG effect, microstructured or holey optical fibres
Abstract
The invention discloses a manufacturing method of a microstructure optical fiber preform for FTTH, and relates to the new material field. The method comprises the following steps: preparing an optical fiber rod through adopting a routine communication optical fiber preparation method, drilling a certain number apertures with a same diameter in a same angle manner at the outboard of the optical fiber rod along the circumferential direction, cleaning the optical fiber rod having the well drilled apertures with an acid solution, cleaning with deionized water, drying, connecting a tail tube to one end of the optical fiber rod, and connecting a tapered quartz head to the other end of the optical fiber rod. The manufacturing method of the invention allows micro-porous high-purity preparation and micro-porous accurate fixing of the microstructure optical fiber preform for the FTTH to be realized, so the polarization mode characteristic and the bending loss characteristic of the microstructure optical fiber for the FTTH are effectively improved, problems of secondary impurity introduction and pollution brought by a micropore formation link in common microstructure optical fiber manufacturing processes are avoided, and the attenuation characteristic of the microstructure optical fiber for the FTTH is guaranteed.
Description
Technical field
The present invention relates to field of new, particularly relate to the manufacture method of a kind of FTTH (Fiber To The Home, fiber to the home) microstructured optical fibers prefabricated rods.
Background technology
The explosive demand of information technology has driven the develop rapidly of FTTH.Fiber-to-the-home application demand impels optical fiber technology to small-bend radius, low decay future development, and meanwhile, other spectrophotometric datas of small-bend radius single-mode fiber still can G.652 optical fiber be consistent with general communication single-mode fiber.G.657 optical fiber is under minimum bending diameter (below 5mm) for routine, and the decay of optical fiber increases rapidly.Which has limited the scope of its application, be also difficult at present well use in last application of hundred meters of fiber to the home.FTTH microstructured optical fibers, it is a kind of microstructured optical fibers of multi-hole type, have good bending property, the additional optical fiber decay under minimum bending diameter under (1mm ~ 5mm) still can control in the reasonable scope, adapts to very much the applied environment of the complexity such as fiber to the home.
Conventional porous microstructure optical fibre mainly adopts the method such as kapillary method of piling, kapillary bundle algorithm to prepare.The shortcoming of these methods is mainly difficult to the accurate sizing ensureing high-purity environment and be difficult to ensure micropore in manufacturing processed.Because kapillary directly can contact external environment in the fabrication process, be difficult to the high-purity characteristic reaching general single mode fiber prefabricated rods manufacturing process, make the Reduction Level utilizing kapillary to form the microstructured optical fibers prefabricated rods of micropore be difficult to reach the Reduction Level of conventional telecommunications fiber.This is the key constraints that microstructured optical fibers is difficult to have been used in a large scale.Simultaneously, because kapillary is in heap sum pack, easily to misplace, this may cause the angle between micropore and micropore can be inconsistent, cause the deviation that pattern is revealed, thus cause the exception of optic fiber polarization mould dispersion, make microstructured optical fibers in normal optical index as the characteristic such as dispersion and polarization mode dispersion also can exist certain gap with the level of general communication single-mode fiber.Such as, the patent No. is the Chinese invention patent of " ZL 200410002286.3 ", and the mode adopting multiple material part to combine, prepares photonic crystral optical fiber preform, also do not reach the manufacture requirements of telecommunication optical fiber; Application number is in the Chinese invention patent application of " 200410093901.6 ", adopt a kind of mode of femtosecond laser, carry out the preparation of microstructured optical fibers prefabricated component, the micropore of its preform prepared is at below 1mm, be applicable to the microstructured optical fibers preparing complex construction, be not too applicable to the FTTH microstructured optical fibers prefabricated rods of preparation high-performance, low cost.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, the manufacture method of the FTTH microstructured optical fibers prefabricated rods of a kind of high quality, low cost is provided, the high-purity preparation of micropore and the micropore that achieve FTTH microstructured optical fibers prefabricated rods are accurately shaped, effective polarization mode characteristic and bending loss characteristics improving FTTH microstructured optical fibers, avoid the secondary impurities that in common microstructured optical fibers manufacturing process, micropore formation link is brought to introduce and pollution problem, ensure the attenuation characteristic of FTTH microstructured optical fibers.
The manufacture method of FTTH microstructured optical fibers prefabricated rods provided by the invention, comprise the following steps: S1, employing conventional telecommunications fiber preparation method prepare single-mode fiber prefabricated rods, described single-mode fiber prefabricated rods comprises a silica core layers mixing germanium and is positioned at the silica clad of pure silicon of sandwich layer periphery, and sandwich layer and silica clad are concentric(al) circles; S2, the hole that along the circumferential direction diameter of equal angular brill some amount is identical in the outside of single-mode fiber prefabricated rods; S3, hole-drilled single-mode fiber prefabricated rods acid solution to be cleaned up, re-use washed with de-ionized water clean, dry after, continue in one end of single-mode fiber prefabricated rods a tail pipe, and tail pipe continue one for clamp tail rod, the other end of single-mode fiber prefabricated rods continue one section be convenient to wire drawing melting taper quartz chieftain, so far a FTTH microstructured optical fibers prefabricated rods completes.
In technique scheme, the preparation method of conventional telecommunications fiber described in step S1 comprises VAD method, PCVD method and MCVD method.
In technique scheme, step S2 comprises the following steps: in the silica clad outside the sandwich layer of single-mode fiber prefabricated rods, with the center of sandwich layer for the center of circle, and each pore distribution is on same circle, and the angle of the Kong Xinyu sandwich layer line of centres in each hole is equal; Diameter according to the hole calculated selects drilling rod, is placed on drilling machine by single-mode fiber prefabricated rods, uses drilling rod to get out the hole of desired number successively.
In technique scheme, the deviation between the outward flange in each hole of boring in step S2 and the outer peripheral distance of single-mode fiber prefabricated rods, within 1mm, makes the position of each hole and sandwich layer keep consistency.
In technique scheme, the quantity in the hole of boring in step S2 is even number.
In technique scheme, the diameter in the hole of boring in step S2 is between 2 ~ 12mm.
In technique scheme, when the diameter in described hole is between 2 ~ 5mm, adopt high-energy laser as drilling rod; When the diameter in hole is between 5 ~ 12mm, adopt metal drill pipe as drilling rod.
In technique scheme, further comprising the steps of after step S3: be suspended on wire-drawer-tower by produced FTTH microstructured optical fibers prefabricated rods, under the high temperature of 2200 DEG C, fusion draw becomes FTTH microstructured optical fibers.
In technique scheme, described FTTH microstructured optical fibers is at 1625nm wave band, and when being the circle of 2mm around 1 bending diameter, bending loss is at 0.20 ~ 0.25dB, and the PMD Coefficient of this optical fiber is at 0.045 ~ 0.051ps/km
1/2, decay to 0.191 ~ 0.202dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
In technique scheme, adopt in step S1 in VAD technique, step S2 and bore FTTH microstructured optical fibers that 6 holes produce at 1625nm wave band, when being the circle of 2mm around 1 bending diameter, bending loss is at 0.22dB, and the PMD Coefficient of this optical fiber is at 0.048ps/km
1/2, decay to 0.191dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Compared with prior art, advantage of the present invention is as follows:
(1) the present invention adopts conventional telecommunications fiber prefabricated rods to prepare single-mode fiber prefabricated rods, fully ensure that the long low fading transmission characteristic of the all-wave of the optical fiber utilizing this single-mode fiber prefabricated rods to be drawn into and dispersion property.Owing to adopting conventional single-mode fiber prefabricated rods as operand completely, every optical index and daily control also can carry out very easily, in conjunction with the method for Fully-mechanized drilling operation, ensure that the high-purity preparation of micropore of preparation FTTH microstructured optical fibers prefabricated rods, the preparation of FTTH microstructured optical fibers prefabricated rods of high quality, low cost can be realized.
(2) the present invention adopts high-precision mechanical locator means, around single-mode fiber prefabricated rods, utilize a drilling rod passes, realize getting out of porous shaping, each micropore all by same bit drills out, fully ensure that size identical property and the circularity consistence of each micropore.In addition, by high-precision machinery location, the micron order location of micropore can be realized, fully ensure being uniformly distributed along the circumferential direction of position between each micropore.Not only registration, and dimensional uniformity between Kong Yukong is good, the circularity consistence in hole itself is also fine, the micropore achieving FTTH microstructured optical fibers prefabricated rods by these three aspects is accurately shaped, ensure the micropore distribution consistence of core layer, thus effectively can improve polarization mode characteristic and the bending loss characteristics of FTTH microstructured optical fibers, at fiber optic communication fields such as fiber to the home, there is wide application prospect.
(3) the present invention utilizes mechanical drilling machine at the core layer of single-mode fiber prefabricated rods, along the circumferential direction, angularly beat the isodiametric hole of some amount, clean up the rear tail rod that directly continues to be placed on High Temperature Furnaces Heating Apparatus and to be drawn into microstructured optical fibers, achieve ease of Use and the mechanized operation of whole preform manufacturing process, ensure in type quartz layer and can not introduce new impurity, thus avoid adopting kapillary method of piling to prepare microstructured optical fibers and not only itself can introduce new impurity, and in the quartz layer of melting, also have the phenomenon of impurity introducing, completely avoid the secondary impurities that in common microstructured optical fibers manufacturing process, micropore formation link is brought to introduce and pollution problem, ensure the attenuation characteristic of FTTH microstructured optical fibers.
Accompanying drawing explanation
Fig. 1 is the schema that the embodiment of the present invention prepares FTTH microstructured optical fibers prefabricated rods.
Fig. 2 is the mechanical location drilling schematic diagram of single-mode fiber prefabricated rods in the embodiment of the present invention.
Fig. 3 is the structural representation of FTTH microstructured optical fibers prefabricated rods of tail pipe aftershaping of continuing in the embodiment of the present invention.
In figure: 1-single-mode fiber prefabricated rods, 2-sandwich layer, 3-silica clad, 4-hole, 5-drilling rod, 6-tail pipe, 7-tail rod, 8-quartz chieftain.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
For the additional attenuation of the minimum bending radius of small-bend radius single-mode fiber and the spectrophotometric data requirement with communication unit mode fiber rank; simultaneously; from the angle being convenient to large-scale production; the embodiment of the present invention provides a kind of manufacture method of FTTH microstructured optical fibers prefabricated rods; shown in Figure 1, this manufacture method comprises the following steps:
S1, employing conventional telecommunications fiber preparation method prepare single-mode fiber prefabricated rods 1, such as PCVD (PCVD) method, MCVD (chemical vapour deposition of improvement) method and VAD (axial vapor deposition) method.This single-mode fiber prefabricated rods 1 comprises a silica core layers mixing germanium 2 and is positioned at the silica clad 3 of pure silicon of sandwich layer 2 periphery, and the two is concentric(al) circles.
S2, the hole 4 that along the circumferential direction diameter of equal angular brill some amount (being generally even number) is identical in the outside of single-mode fiber prefabricated rods 1, the diameter in hole 4 is according to the difference of single-mode fiber prefabricated rods 1 diameter, and value is between 2 ~ 12mm.On silica clad 3, with the center of sandwich layer 2 for the center of circle, and get suitable diameter according to the diameter of sandwich layer 2 and draw a circle, the quantity in the hole 4 of boring as required, such as, 6 holes 4 be bored, shown in Figure 2, on circle, then get 6 points, angle between each point is 60 degree, then according to the diameter in the hole 4 calculated, selects the drilling rod 5 that suitable, single-mode fiber prefabricated rods 1 is placed on drilling machine, uses this root drilling rod 5 to get 6 holes 4 successively.
When the diameter in hole 4 is between 2 ~ 5mm, adopt suitable heavy caliber high-energy laser as drilling rod 5, single-mode fiber prefabricated rods 1 is placed on the position of drilling rod 5, regulates the bore of outgoing laser beam, the diameter in the hole 4 made it and will bore is consistent, gets 6 holes 4 successively.When the diameter in hole 4 is between 5 ~ 12mm, adopt metal drill pipe as drilling rod 5.If be distributed in the micropore skewness around single-mode fiber prefabricated rods 1, then can cause the leakage of light on the one hand, the bending loss characteristics of the optical fiber of drawing is deteriorated, can make on the other hand the circumference of optical fiber in plane residing for fibril core diameter direction stressed exist asymmetric, cause the polarization mode bad characteristic of optical fiber, thus affect the normal use of optical fiber.Therefore, after having bored 6 holes 4, also will measure outward flange and the single-mode fiber prefabricated rods 1 outer peripheral distance L1 and L2 in two symmetrical holes 4, the two deviation, within 1mm, makes each hole 4 keep consistency with the position of sandwich layer 2, is uniformly distributed as far as possible.
S3, the single-mode fiber prefabricated rods 1 of having bored hole 4 to be cleaned up by acid solution, re-use washed with de-ionized water clean, dry, shown in Figure 3, continue in one end of single-mode fiber prefabricated rods 1 tail pipe 6, and the tail rod 7 for clamping that continues on tail pipe 6, to continue one section of taper quartz chieftain 8 at the other end of single-mode fiber prefabricated rods 1, be convenient to wire drawing melting.So complete FTTH microstructured optical fibers prefabricated rods just completes.
Produced FTTH microstructured optical fibers prefabricated rods is suspended on wire-drawer-tower and draws through high-temperature fusion, just can become FTTH microstructured optical fibers.Adopt bend-insensitive microstructured optical fibers prepared by this technique, at 1625nm wave band, when being the circle of 2mm around 1 bending diameter, bending loss, at 0.20 ~ 0.25dB, has excellent little bending loss characteristics; PMD (polarization mode dispersion) coefficient of this optical fiber is at 0.045 ~ 0.051ps/km
1/2, decay to 0.191 ~ 0.202dB/km at 1550nm wave band, can reach the level of general communication single-mode fiber, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Be described in detail below by 3 specific embodiments.
Embodiment 1:VAD technique, brill 6 holes
VAD technique is adopted to prepare single-mode fiber prefabricated rods 1, the diameter of single-mode fiber prefabricated rods 1 reaches 150mm, with sandwich layer 2 center for the center of circle, drawing diameter is the circle of 20 ~ 40mm, shown in Figure 2, determine to need brill 6 holes 4, the angle of Kong Xinyu sandwich layer 2 line of centres in each hole 4 is 60 degree, and the diameter in each hole 4 is 12mm.Selection bore is the drilling rod 5 of 12mm, is placed on drilling machine, utilizes same drilling rod, successively in the silica clad 3 of single-mode fiber prefabricated rods 1, come outbreak out single-mode fiber prefabricated rods 1 in 6 holes 4 according to the position determined in advance.After boring, the diameter line in sandwich layer 2 center of circle is passed through for axle with single-mode fiber prefabricated rods 1, measure outward flange and the outer peripheral distance of single-mode fiber prefabricated rods 1 in each hole 4, obtain 6 range data, the deviation between these 6 distances just need meet the requirements within 1mm.
Hole 4 will be bored and single-mode fiber prefabricated rods 1 qualified after testing cleans up by acid solution, re-use washed with de-ionized water clean, dry, shown in Figure 3, continue in one end of single-mode fiber prefabricated rods 1 tail pipe 6, and the tail rod 7 for clamping that continues on tail pipe 6, to continue one section of taper quartz chieftain 8 at the other end of single-mode fiber prefabricated rods 1, be convenient to wire drawing melting.So complete FTTH microstructured optical fibers prefabricated rods just completes.
Be suspended on wire-drawer-tower by produced FTTH microstructured optical fibers prefabricated rods, under the high temperature of about 2200 DEG C, fusion draw becomes FTTH microstructured optical fibers.This optical fiber is at 1625nm wave band, and when being the circle of 2mm around 1 bending diameter, bending loss is at 0.22dB, and the PMD Coefficient of optical fiber only has 0.048ps/km simultaneously
1/2, decay to 0.191dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Embodiment 2:PCVD technique, brill 12 holes
PCVD technique is adopted to prepare single-mode fiber prefabricated rods 1, the diameter of single-mode fiber prefabricated rods 1 is 80mm, with sandwich layer 2 center for the center of circle, drawing diameter is the circle of 15 ~ 30mm, determine to need brill 12 holes 4, the angle of Kong Xinyu sandwich layer 2 line of centres in each hole 4 is 30 degree, and the diameter in each hole 4 is 6mm.Selection bore is the drilling rod 5 of 6mm, is placed on drilling machine, utilizes same drilling rod, successively in the silica clad 3 of single-mode fiber prefabricated rods 1, come outbreak out single-mode fiber prefabricated rods 1 in 12 holes 4 according to the position determined in advance.After boring, the diameter line in sandwich layer 2 center of circle is passed through for axle with single-mode fiber prefabricated rods 1, measure outward flange and the outer peripheral distance of single-mode fiber prefabricated rods 1 in each hole 4, obtain 12 range data, the deviation between these 12 distances just need meet the requirements within 1mm.
Hole 4 will be bored and single-mode fiber prefabricated rods 1 qualified after testing cleans up by acid solution, re-use washed with de-ionized water clean, dry, shown in Figure 3, continue in one end of single-mode fiber prefabricated rods 1 tail pipe 6, and the tail rod 7 for clamping that continues on tail pipe 6, to continue one section of taper quartz chieftain 8 at the other end of single-mode fiber prefabricated rods 1, be convenient to wire drawing melting, so complete FTTH microstructured optical fibers prefabricated rods just completes.
Be suspended on wire-drawer-tower by produced FTTH microstructured optical fibers prefabricated rods, under the high temperature of about 2200 DEG C, fusion draw becomes FTTH microstructured optical fibers.This optical fiber is at 1625nm wave band, and when being the circle of 2mm around 1 bending diameter, bending loss is at 0.20dB, and the PMD Coefficient of optical fiber only has 0.045ps/km simultaneously
1/2, decay to 0.195dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Embodiment 3:MCVD technique, brill 12 holes
MCVD technique is adopted to prepare single-mode fiber prefabricated rods 1, single-mode fiber prefabricated rods 1 diameter is 50mm, sandwich layer 2 diameter is 5.0mm, with sandwich layer 2 center for the center of circle, drawing diameter is the circle of 10 ~ 20mm, determine to need brill 12 holes 4, the angle of Kong Xinyu sandwich layer 2 line of centres in each hole 4 is 30 degree, and the diameter in each hole 4 is 2mm.Lasing beam diameter is selected to be the laser apparatus of 2mm, the laser output of laser apparatus is installed to the correspondence position of drilling machine, single-mode fiber prefabricated rods 1 is placed on drilling machine, utilize same laser output, successively in the silica clad 3 of single-mode fiber prefabricated rods 1, according to the position determined in advance, 12 holes 4 are come outbreak out.After boring, the diameter line in sandwich layer 2 center of circle is passed through for axle with single-mode fiber prefabricated rods 1, measure outward flange and the outer peripheral distance of single-mode fiber prefabricated rods 1 in each hole 4, obtain 12 range data, the deviation between these 12 distances just need meet the requirements within 1mm.
Hole 4 will be bored and single-mode fiber prefabricated rods 1 qualified after testing cleans up by acid solution, re-use washed with de-ionized water clean, dry, shown in Figure 3, continue in one end of single-mode fiber prefabricated rods 1 tail pipe 6, and the tail rod 7 for clamping that continues on tail pipe 6, to continue one section of taper quartz chieftain 8 at the other end of single-mode fiber prefabricated rods 1, be convenient to wire drawing melting, so complete FTTH microstructured optical fibers prefabricated rods just completes.
Be suspended on wire-drawer-tower by produced FTTH microstructured optical fibers prefabricated rods, under the high temperature of about 2200 DEG C, fusion draw becomes FTTH microstructured optical fibers.This optical fiber is at 1625nm wave band, and when being the circle of 2mm around 1 bending diameter, bending loss is at 0.25dB, and the PMD Coefficient of optical fiber only has 0.051ps/km simultaneously
1/2, decay to 0.202dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention comprises these change and modification.The content be not described in detail in this specification sheets belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. a FTTH manufacture method for microstructured optical fibers prefabricated rods, is characterized in that comprising the following steps:
S1, employing conventional telecommunications fiber preparation method prepare single-mode fiber prefabricated rods (1), described single-mode fiber prefabricated rods (1) comprises one and mixes the silica core layers (2) of germanium and be positioned at the silica clad (3) of the peripheral pure silicon of sandwich layer (2), and sandwich layer (2) and silica clad (3) are concentric(al) circles;
S2, the hole (4) that along the circumferential direction diameter of equal angular brill even number is identical in the outside of single-mode fiber prefabricated rods (1), the diameter of hole (4) is between 2 ~ 12mm; When the diameter in hole (4) is between 2 ~ 5mm, adopt high-energy laser as drilling rod (5); When the diameter in hole (4) is between 5 ~ 12mm, adopt metal drill pipe as drilling rod (5);
S3, the single-mode fiber prefabricated rods (1) of having bored hole (4) to be cleaned up by acid solution, re-use washed with de-ionized water clean, dry after, to continue in one end of single-mode fiber prefabricated rods (1) a tail pipe (6), and to continue a tail rod (7) for clamping at tail pipe (6), the other end of single-mode fiber prefabricated rods (1) continue one section be convenient to wire drawing melting taper quartz chieftain (8), so far a FTTH microstructured optical fibers prefabricated rods completes;
Produced FTTH microstructured optical fibers prefabricated rods is suspended on wire-drawer-tower, under the high temperature of 2200 DEG C, fusion draw becomes FTTH microstructured optical fibers, described FTTH microstructured optical fibers is at 1625nm wave band, when being the circle of 2mm around 1 bending diameter, bending loss is at 0.20 ~ 0.25dB, and the PMD Coefficient of this optical fiber is at 0.045 ~ 0.051ps/km
1/2, decay to 0.191 ~ 0.202dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
2. the FTTH manufacture method of microstructured optical fibers prefabricated rods as claimed in claim 1, is characterized in that: the preparation method of conventional telecommunications fiber described in step S1 comprises VAD method, PCVD method and MCVD method.
3. the FTTH as claimed in claim 2 manufacture method of microstructured optical fibers prefabricated rods, it is characterized in that: step S2 comprises the following steps: in sandwich layer (2) silica clad outward (3) of single-mode fiber prefabricated rods (1), with the center of sandwich layer (2) for the center of circle, each hole (4) is distributed on same circle, and the angle of Kong Xinyu sandwich layer (2) line of centres of each hole (4) is equal; Diameter according to the hole calculated (4) selects drilling rod (5), is placed on drilling machine by single-mode fiber prefabricated rods (1), uses drilling rod (5) to get out the hole (4) of desired number successively.
4. the FTTH as claimed in claim 3 manufacture method of microstructured optical fibers prefabricated rods, it is characterized in that: the deviation between the outward flange in each hole (4) of boring in step S2 and single-mode fiber prefabricated rods (1) outer peripheral distance, within 1mm, makes each hole (4) keep consistency with the position of sandwich layer (2).
5. the FTTH as claimed in claim 1 manufacture method of microstructured optical fibers prefabricated rods, it is characterized in that: adopt in step S1 in VAD technique, step S2 and bore FTTH microstructured optical fibers that 6 holes (4) produce at 1625nm wave band, when being the circle of 2mm around 1 bending diameter, bending loss is at 0.22dB, and the PMD Coefficient of this optical fiber is at 0.048ps/km
1/2, decay to 0.191dB/km at 1550nm wave band, other spectrophotometric datas are also G.652 consistent with general communication single-mode fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185121.9A CN102730959B (en) | 2012-06-06 | 2012-06-06 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185121.9A CN102730959B (en) | 2012-06-06 | 2012-06-06 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102730959A CN102730959A (en) | 2012-10-17 |
| CN102730959B true CN102730959B (en) | 2014-12-31 |
Family
ID=46987358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210185121.9A Active CN102730959B (en) | 2012-06-06 | 2012-06-06 | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102730959B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940456B (en) * | 2014-04-11 | 2016-08-17 | 北京理工大学 | A kind of interference-type reflective probe formula optical fiber microsensor and preparation method thereof |
| CN112551885A (en) * | 2021-01-06 | 2021-03-26 | 长春理工大学 | Four-core microstructure optical fiber perform fiber arranging mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2493618Y (en) * | 2001-06-29 | 2002-05-29 | 长飞光纤光缆有限公司 | Optical fibre prefabrication bar with extensible sleeve |
| CN1644539A (en) * | 2004-12-13 | 2005-07-27 | 天津大学 | Precasting method of optical fibre with microstructure |
| CN1884165A (en) * | 2006-06-30 | 2006-12-27 | 浙江富通光纤技术有限公司 | Method for preparing optical fiber by large-sized low-water-peak optical fiber preform and dedicated device therefor |
| CN101328013A (en) * | 2007-06-22 | 2008-12-24 | 江苏亨通光纤科技有限公司 | Method for drawing optical fibre by using large size optical fibre prefabricated bar |
| CN101328012A (en) * | 2007-06-21 | 2008-12-24 | 江苏亨通光纤科技有限公司 | Large size rock quartz optical fibre prefabricated bar manufacturing method |
| CN101710193A (en) * | 2009-11-27 | 2010-05-19 | 电子科技大学 | Method for manufacturing microstructure fiber |
| CN101779149A (en) * | 2007-07-02 | 2010-07-14 | 泰科电子瑞侃有限公司 | The hole arranged photonic crystal fiber that is used for low-loss, tight fibre-optical bending application |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010173917A (en) * | 2009-01-30 | 2010-08-12 | Hitachi Cable Ltd | Base material for holey fiber and method for production thereof |
-
2012
- 2012-06-06 CN CN201210185121.9A patent/CN102730959B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2493618Y (en) * | 2001-06-29 | 2002-05-29 | 长飞光纤光缆有限公司 | Optical fibre prefabrication bar with extensible sleeve |
| CN1644539A (en) * | 2004-12-13 | 2005-07-27 | 天津大学 | Precasting method of optical fibre with microstructure |
| CN1884165A (en) * | 2006-06-30 | 2006-12-27 | 浙江富通光纤技术有限公司 | Method for preparing optical fiber by large-sized low-water-peak optical fiber preform and dedicated device therefor |
| CN101328012A (en) * | 2007-06-21 | 2008-12-24 | 江苏亨通光纤科技有限公司 | Large size rock quartz optical fibre prefabricated bar manufacturing method |
| CN101328013A (en) * | 2007-06-22 | 2008-12-24 | 江苏亨通光纤科技有限公司 | Method for drawing optical fibre by using large size optical fibre prefabricated bar |
| CN101779149A (en) * | 2007-07-02 | 2010-07-14 | 泰科电子瑞侃有限公司 | The hole arranged photonic crystal fiber that is used for low-loss, tight fibre-optical bending application |
| CN101710193A (en) * | 2009-11-27 | 2010-05-19 | 电子科技大学 | Method for manufacturing microstructure fiber |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘志海等.加工玻璃生产操作问答.《加工玻璃生产操作问答》.化学工业出版社,2009,第19-20页. * |
| 徐军.激光材料科学与技术前沿.《激光材料科学与技术前沿》.上海交通大学出版社,2007,第46页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102730959A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2700988B1 (en) | Bending-resistant large core diameter high numerical aperture multimode fiber | |
| CN101387720B (en) | Method of manufacturing polarization maintaining optical fiber | |
| CN101391861B (en) | Large size combined optical fibre perform of polarization maintaining fiber and production method thereof | |
| CN102757179B (en) | Method for preparing large-size optical fiber preform | |
| CN102354019A (en) | Bent non-sensitive micro-structured optical fiber and production method thereof | |
| CN102096145B (en) | Multi-core polarization maintaining fiber and manufacturing method thereof | |
| CN111290075B (en) | Single-mode optical fiber and multi-core optical fiber coupler | |
| CN102730960B (en) | Manufacturing method of porous optical fiber preform | |
| CN108181683B (en) | Low-crosstalk large-mode-area multi-core optical fiber and preparation method thereof | |
| CN212134989U (en) | Laser transmission optical fiber | |
| CN111552025A (en) | Multi-core fiber Fan-in/out device with concave triple-clad transition fiber | |
| CN107102400B (en) | High-bandwidth bending insensitive multimode optical fiber | |
| CN104316993B (en) | A kind of big core diameter energy-transmission optic fibre | |
| CN102730959B (en) | Manufacturing method of microstructure optical fiber preform for FTTH (fiber to the home) | |
| CN105866880B (en) | A kind of preparation method of polarization maintaining optical fibre | |
| CN104261670A (en) | Method for manufacturing optical fiber | |
| CN105985014B (en) | A kind of diamond shape covering polarization maintaining optical fibre and its manufacturing method | |
| CA3070060A1 (en) | Optical fiber draw assembly and fabricated optical fiber thereof | |
| CN107193080B (en) | High bandwidth bend insensitive multimode optical fiber | |
| CN107311445B (en) | Polarization maintaining optical fiber preform | |
| JPS627130B2 (en) | ||
| CN113121103B (en) | Method for manufacturing hollow internally-suspended high-refractive-index multi-core optical fiber | |
| CN103708721A (en) | Manufacturing device and manufacturing method of polarization maintaining fiber preform | |
| CN106154410A (en) | A kind of single-mode fiber and manufacture method thereof | |
| CN112327405A (en) | Panda type single polarization optical fiber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |