CN113031159A - Optical fiber fusion welding protective sleeve and manufacturing method thereof - Google Patents
Optical fiber fusion welding protective sleeve and manufacturing method thereof Download PDFInfo
- Publication number
- CN113031159A CN113031159A CN202110268309.9A CN202110268309A CN113031159A CN 113031159 A CN113031159 A CN 113031159A CN 202110268309 A CN202110268309 A CN 202110268309A CN 113031159 A CN113031159 A CN 113031159A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- optical fiber
- inner sleeve
- fiber fusion
- outer sleeve
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention is suitable for the technical field of optical communication products, and provides an optical fiber fusion splicing protective sleeve and a manufacturing method thereof, wherein the optical fiber fusion splicing protective sleeve comprises: the positioning needle comprises an inner sleeve, an outer sleeve and a positioning needle arranged between the inner sleeve and the outer sleeve; the number of the positioning needles is at least two, and the positioning needles are uniformly arranged along the circumferential direction of the inner sleeve. According to the optical fiber fusion welding protective sleeve provided by the scheme of the invention, at least two positioning needles are uniformly arranged in the circumferential direction of the inner sleeve, so that when the optical fiber fusion welding protective sleeve is heated for fusion welding, the positioning needles are uniformly distributed in the circumferential direction of the optical fiber fusion welding protective sleeve, the stress in the circumferential direction of the optical fiber fusion welding protective sleeve is uniform, the optical fiber fusion welding protective sleeve is effectively prevented from being bent and deformed during fusion welding, and the practicability of the optical fiber fusion welding protective sleeve is improved.
Description
Technical Field
The invention belongs to the technical field of optical communication products, and particularly relates to an optical fiber fusion splicing protective sleeve and a manufacturing method thereof.
Background
With the rapid development and large-scale application of communication technology, the demand of various optical fibers is increasing dramatically, and the optical fiber fusion splicing protective sleeve is also widely applied to the field of optical fiber splicing. When splicing optical fibers, the protective layer at the splicing end of the optical fibers needs to be removed to expose the optical fibers for fusion splicing. The removed optical fiber protective layer originally has certain mechanical strength, so the optical fiber welding protective sleeve containing the positioning steel needle is produced.
Current optical fiber fusion splice protective sleeve includes inside and outside sleeve pipe to and the single location steel needle between the outer tube including setting, its easy atress is uneven when the butt fusion, leads to the optical fiber fusion splice protective sleeve's after the butt fusion completion outward appearance shape to present certain crookedness easily, can influence the signal loss after the optical fiber splice, inconvenient optical fiber is follow-up fixed in the draw-in groove moreover.
It is thus desirable to provide a new optical fiber fusion splice protection sleeve to solve the technical problem of the prior optical fiber fusion splice protection sleeve that is prone to bending during fusion splicing.
Disclosure of Invention
The embodiment of the invention aims to provide an optical fiber fusion splicing protective sleeve, and aims to solve the technical problem that the existing optical fiber fusion splicing protective sleeve is easy to bend during fusion splicing.
The embodiment of the present invention is realized in such a way that the optical fiber fusion splicing protective sleeve includes: the positioning needle comprises an inner sleeve, an outer sleeve and a positioning needle arranged between the inner sleeve and the outer sleeve;
the number of the positioning needles is at least two, and the positioning needles are uniformly arranged along the circumferential direction of the inner sleeve.
Preferably, the softening temperature of the material of the inner sleeve is higher than the softening temperature of the material of the outer sleeve.
Preferably, the inner sleeve is made of polyethylene copolymer, and the outer sleeve is made of polyolefin copolymer.
Preferably, the length of the inner sleeve and the length of the outer sleeve are the same, and both ends of the inner sleeve and the outer sleeve are longer than both ends of the positioning needle.
Preferably, the outer sleeve is arranged at two ends of the optical fiber fusion welding protection sleeve in a shrinkage mode towards the inner sleeve. .
Preferably, the outer sleeve between two adjacent positioning needles is arranged in a shrinkage mode towards the inner sleeve. Preferably, at least one of the outer wall of the inner sleeve and the inner wall of the outer sleeve is provided with a limiting groove, and the limiting groove is used for preventing the positioning needle from moving along the circumferential direction of the optical fiber fusion splicing protective sleeve. Another object of an embodiment of the present invention is to provide a method for manufacturing a fusion splicing protective sleeve, including:
nesting an inner sleeve in an outer sleeve, and aligning two ends of the inner sleeve and the outer sleeve;
placing at least two positioning needles between the inner sleeve and the outer sleeve, so that the positioning needles are uniformly distributed along the circumferential direction of the inner sleeve, and two ends of each positioning needle are shorter than the inner sleeve and the outer sleeve;
and respectively carrying out pre-shrinking treatment on two ends of the outer sleeve, wherein the pre-shrinking temperature of the pre-shrinking treatment is set between the softening temperature of the inner sleeve and the softening temperature of the outer sleeve.
Preferably, the method for manufacturing the optical fiber fusion splicing protective sleeve further comprises: and performing pre-shrinking treatment on the outer sleeve in the circumferential direction, so that the inner wall of the outer sleeve and the outer wall of the inner sleeve between two adjacent positioning needles are arranged in a contact manner.
According to the optical fiber fusion welding protective sleeve provided by the embodiment of the invention, at least two positioning needles are uniformly arranged in the circumferential direction of the inner sleeve, so that when the optical fiber fusion welding protective sleeve is heated for fusion welding, the positioning needles are uniformly distributed in the circumferential direction of the optical fiber fusion welding protective sleeve, the stress in the circumferential direction of the optical fiber fusion welding protective sleeve is uniform, the optical fiber fusion welding protective sleeve is effectively prevented from bending deformation during fusion welding, and the practicability of the optical fiber fusion welding protective sleeve is improved.
Drawings
Fig. 1 is an assembled axial sectional view of a fusion splice protection sleeve according to an embodiment of the present invention;
FIG. 2 is a side view of a fusion splice protection sleeve according to an embodiment of the present invention;
fig. 3 is an axial cross-sectional view of a fusion splice protection sleeve according to an embodiment of the present invention after pre-shrinking the two ends of the fusion splice protection sleeve;
FIG. 4 is a side view of a fusion splice protection sleeve according to an embodiment of the present invention after circumferential pre-shrinking treatment;
fig. 5 is a schematic structural view of an inner sleeve according to an embodiment of the present invention, wherein the inner sleeve is provided with a limiting groove;
in the drawings: 1. an inner sleeve; 2. an outer sleeve; 3. a positioning pin; 4, limiting grooves.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and 2, a schematic structural diagram of a fusion splicing protection sleeve according to an embodiment of the present invention includes: the device comprises an inner sleeve 1, an outer sleeve 2 and a positioning needle 3 arranged between the inner sleeve 1 and the outer sleeve 2;
the number of the positioning needles 3 is at least two, and the positioning needles 3 are uniformly arranged along the circumferential direction of the inner sleeve 1.
In the embodiment of the invention, the positioning needles 3 are uniformly arranged along the inner sleeve 1, and the positioning needles 3 are uniformly arranged between the inner sleeve 1 and the outer sleeve 2 at intervals along the circumferential direction of the optical fiber fusion protection sleeve. The present embodiment does not limit the specific number of the positioning pins 3, for example, when two positioning pins 3 are provided, the two positioning pins 3 are symmetrically arranged on the outer circumference of the inner sleeve 1. The positioning pin 3 has a certain bending strength, for example, the positioning pin 3 may be made of stainless steel, but is not limited thereto.
In the embodiment of the present invention, it is preferable that the lengths of the inner sleeve 1 and the outer sleeve 2 of the optical fiber fusion protection sleeve are the same, and both ends are aligned, while the lengths of the inner sleeve 1 and the outer sleeve 2 are longer than the length of the positioning needle 3, and the positioning needle 3 is disposed at an intermediate position between the inner sleeve 1 and the outer sleeve 2 along the sleeve axial direction, so that both ends of the inner sleeve 1 and the outer sleeve 2 will extend a length of the positioning needle 3, as shown in fig. 3, a portion of the outer sleeve 2, which extends beyond the positioning needle 3, of the inner sleeve 1 and the outer sleeve 2 contracts towards the inner sleeve 1, so as to limit the position of the positioning needle 3 in the axial direction of the protection sleeve, and in this embodiment, there is no limitation on the degree of contraction of the outer sleeve 2 towards the inner sleeve 1, for example.
According to the optical fiber fusion-splicing protective sleeve provided by the embodiment of the invention, at least two positioning needles 3 are uniformly arranged in the circumferential direction of the inner sleeve 1, so that when the optical fiber fusion-splicing protective sleeve is heated for fusion splicing, the positioning needles 3 are uniformly distributed in the circumferential direction of the optical fiber fusion-splicing protective sleeve, the stress in the circumferential direction of the optical fiber fusion-splicing protective sleeve is uniform, and the optical fiber fusion-splicing protective sleeve is effectively prevented from being bent and deformed during fusion splicing. And through making interior sleeve pipe 1 and outer tube 2 both ends all be longer than the both ends of pilot pin 3 to make interior sleeve pipe 1 and outer tube 2 grow the partial outer tube 2 shrink of pilot pin 3 to interior sleeve pipe 1, can effectively restrict pilot pin 3 between interior sleeve pipe 1 and outer tube 2, avoid pilot pin 3 to take place to remove or drop in the axial of optical fiber butt fusion protective case.
In another embodiment of the invention, the softening temperature of the material of the inner jacket tube 1 is higher than the softening temperature of the material of the outer jacket tube 2.
In the embodiment of the present invention, the specific structures of the inner sleeve 1 and the outer sleeve 2 are not limited, for example, the material of the inner sleeve 1 may be a polyethylene copolymer, and the material of the outer sleeve 2 may be a polyolefin copolymer, but is not limited thereto.
According to the optical fiber fusion-splicing protective sleeve provided by the embodiment of the invention, the softening temperature of the material of the inner sleeve 1 is higher than that of the material of the outer sleeve 2, so that only the outer sleeve 2 is softened and deformed during thermal shrinkage, and the phenomenon that the inner diameter of the inner sleeve 1 is influenced by the deformation of the inner sleeve 1, so that the design size of the optical fiber fusion-splicing protective sleeve is inconsistent with the actual production size is avoided, the production precision is indirectly improved, and the production quality is ensured.
In another embodiment of the present invention, as shown in fig. 4, the outer sleeve 2 between two adjacent positioning needles 3 is shrunk toward the inner sleeve 1. In the embodiment of the invention, the shrinkage arrangement of the outer sleeve 2 between two adjacent positioning needles 3 to the inner sleeve 1 means that the outer sleeve 2 is shrunk to the inner sleeve 1 by deformation.
According to the optical fiber fusion-splicing protective sleeve provided by the embodiment of the invention, the outer sleeve 2 between two adjacent positioning needles 3 is arranged towards the inner sleeve 1 in a shrinkage manner, and the outer sleeve 2 is arranged on two sides of each positioning needle 3 for limiting, so that the positions of the positioning needles 3 along the circumferential direction of the outer wall of the inner sleeve 1 can be effectively fixed, the positioning needles 3 cannot be uniformly arranged along the circumferential direction of the inner sleeve 1 due to the fact that the positions of the positioning needles 3 along the circumferential direction of the outer wall of the inner sleeve 1 move, the optical fiber fusion-splicing protective sleeve is prevented from being deformed due to uneven stress during fusion splicing, and the use stability of the.
In another embodiment of the present invention, as shown in fig. 5, at least one of the outer wall of the inner sleeve 1 or the inner wall of the outer sleeve 2 is provided with a limiting groove 4, and the limiting groove 4 is used for preventing the positioning pin 3 from moving in the circumferential direction of the optical fiber fusion protection sleeve.
In the embodiment of the present invention, the shape of the limiting groove 4 corresponds to the shape of the positioning pin 3, for example, when the positioning pin 3 is cylindrical, the cross section of the limiting groove 4 may be circular arc, and the limiting grooves 4 are also uniformly arranged along the outer wall of the inner sleeve 4 at intervals in the circumferential direction. The limiting groove 4 can be only arranged on the outer wall of the inner sleeve 1 or only arranged on the inner wall of the outer sleeve 2, or both the outer wall of the inner sleeve 1 and the inner wall of the outer sleeve 2.
According to the optical fiber fusion-splicing protective sleeve provided by the embodiment of the invention, the limiting groove 4 is formed in the outer wall of the inner sleeve 1 or the inner wall of the outer sleeve 2, so that the positioning needle 3 can be effectively prevented from moving along the circumferential direction of the outer wall of the inner sleeve 1, the positioning needle 3 cannot be uniformly arranged along the circumferential direction of the inner sleeve 1 due to the fact that the positioning needle 3 moves along the circumferential direction of the outer wall of the inner sleeve 1, and further the optical fiber fusion-splicing protective sleeve is prevented from being deformed due to uneven stress during fusion splicing.
In another embodiment of the present invention, there is provided a method of manufacturing a fusion splice protection sleeve, including:
In the embodiment of the present invention, since the lengths of the inner sleeve 1 and the outer sleeve 2 are the same, when one end of the inner sleeve 1 and one end of the outer sleeve 2 are aligned, the other end thereof is automatically aligned.
And 2, placing at least two positioning needles 3 between the inner sleeve 1 and the outer sleeve 2, so that the positioning needles 3 are uniformly distributed along the circumferential direction of the inner sleeve 1, and two ends of each positioning needle 3 are shorter than the inner sleeve 1 and the outer sleeve 2.
In the embodiment of the invention, the inner diameter of the outer sleeve 2 is larger than the outer diameter of the inner sleeve 1, when the inner sleeve 1 is nested in the outer sleeve 2, a gap exists between the two sleeves, and the positioning needle 3 is inserted into the gap. Regarding make the pilot pin 3 along the circumference evenly distributed of interior sleeve pipe 1, can be through the placing position of tool auxiliary locator pin 3 at interior sleeve pipe 1 circumference, when being provided with spacing groove 4 on interior sleeve pipe 1 outer wall or outer tube 2 inner wall, can directly make the pilot pin 3 insert along spacing groove 4. Because the whole length of the positioning needle 3 is shorter than that of the inner sleeve 1 and the outer sleeve 2, the two ends of the positioning needle 3 are both shorter than that of the inner sleeve 1 and the outer sleeve 2, that is, the positioning needle 3 is arranged at the middle position in the axial direction of the inner sleeve 1 and the outer sleeve 2, so that the inner sleeve 1 and the outer sleeve 2 at the two ends of the positioning needle 3 are both longer by one section.
In the embodiment of the present invention, step 1 and step 2 belong to an assembly process in the manufacturing process of the optical fiber fusion splicing protective sleeve, and the assembly work in step 1 and step 2 may be performed by manual assembly or by automated equipment, which is not limited in this embodiment.
And 3, respectively carrying out pre-shrinking treatment on two ends of the outer sleeve 2, wherein the pre-shrinking temperature of the pre-shrinking treatment is set between the softening temperature of the inner sleeve 1 and the softening temperature of the outer sleeve 2.
In the embodiment of the present invention, the pre-shrinking treatment means heating and shrinking the inner tube 1 and the outer tube 2, and the softening temperature of the inner tube 1 is higher than the softening temperature of the outer tube 2, so that when the pre-shrinking temperature of the pre-shrinking treatment is set between the softening temperature of the inner tube 1 and the softening temperature of the outer tube 2, only the outer tube 2 can be softened and shrunk, and thus when the pre-shrinking treatment is performed on both ends of the inner tube 1 and the outer tube 2, the part of the outer tube 2 extending out of the positioning pin 3 can be shrunk to the inner tube 1, and the degree of the pre-shrinking treatment is not limited in the present embodiment, and for example, the outer tube 2 can be shrunk to the inner tube to be in.
According to the manufacturing method of the optical fiber fusion-splicing protective sleeve provided by the embodiment of the invention, the pre-shrinking temperature of the pre-shrinking treatment is set between the softening temperature of the inner sleeve 1 and the softening temperature of the outer sleeve 2, because the softening temperature of the inner sleeve 1 is higher than the softening temperature of the outer sleeve 2, the outer sleeve 2 can be deformed and shrunk only without influencing the shape of the inner sleeve 1 when the pre-shrinking treatment is carried out, the situation that the design size of the inner sleeve 1 is not consistent with the actual production size due to the deformation of the inner sleeve 1 is effectively avoided, the positioning needle 3 can be limited between the inner sleeve 1 and the outer sleeve 2 by respectively carrying out the pre-shrinking treatment on the two ends of the inner sleeve 1 and the outer sleeve 2, and the positioning needle 3 is prevented from being taken out from the space between the inner sleeve 1 and.
In another embodiment of the present invention, the method for manufacturing the fusion splice protection sleeve further comprises: and performing the pre-shrinking treatment on the outer sleeve 2 in the circumferential direction to enable the inner wall of the outer sleeve 2 and the outer wall of the inner sleeve 1 between two adjacent positioning needles 3 to be in contact arrangement.
In the embodiment of the present invention, the specific operation of performing the pre-shrinking treatment on the circumferential directions of the inner sleeve 1 and the outer sleeve 2 is not limited, because at least two positioning needles 3 are required to be uniformly arranged between the inner sleeve and the outer sleeve at intervals, when a certain distance exists between two adjacent positioning needles 3, when the pre-shrinking treatment is performed on the circumferential direction of the outer sleeve 2, the outer sleeve 2 shrinks towards the inner sleeve 1, so that the outer sleeve 2 can limit the positioning needles 3 in the circumferential direction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a fiber fusion splicing protection sleeve which characterized in that, fiber fusion splicing protection sleeve includes: the positioning needle comprises an inner sleeve, an outer sleeve and a positioning needle arranged between the inner sleeve and the outer sleeve;
the number of the positioning needles is at least two, and the positioning needles are uniformly arranged along the circumferential direction of the inner sleeve.
2. The optical fiber fusion protective sleeve of claim 1, wherein the softening temperature of the material of the inner sleeve is higher than the softening temperature of the material of the outer sleeve.
3. The optical fiber fusion-splicing protective sleeve according to claim 2, wherein the inner sleeve is made of polyethylene copolymer, and the outer sleeve is made of polyolefin copolymer.
4. The optical fiber fusion-splicing protection sleeve according to claim 1, wherein the inner sleeve and the outer sleeve have the same length, and both ends of the inner sleeve and the outer sleeve are longer than both ends of the positioning pin.
5. The optical fiber fusion splice protection sleeve of claim 4, wherein the outer sleeve is disposed in a converging manner towards the inner sleeve at both ends of the optical fiber fusion splice protection sleeve.
6. The optical fiber fusion-splicing protective sleeve according to claim 1, wherein the outer sleeve between two adjacent positioning pins is disposed so as to be contracted toward the inner sleeve.
7. The optical fiber fusion-splicing protective sleeve according to claim 1, wherein a stopper groove for stopping movement of the positioning pin in a circumferential direction of the optical fiber fusion-splicing protective sleeve is provided in at least one of an outer wall of the inner sleeve and an inner wall of the outer sleeve.
8. A method of manufacturing a fusion splice protection sleeve, the method comprising:
nesting an inner sleeve in an outer sleeve, and aligning two ends of the inner sleeve and the outer sleeve;
placing at least two positioning needles between the inner sleeve and the outer sleeve, so that the positioning needles are uniformly distributed along the circumferential direction of the inner sleeve, and two ends of each positioning needle are shorter than the inner sleeve and the outer sleeve;
and respectively carrying out pre-shrinking treatment on two ends of the outer sleeve, wherein the pre-shrinking temperature of the pre-shrinking treatment is set between the softening temperature of the inner sleeve and the softening temperature of the outer sleeve.
9. The method of manufacturing a fusion splice protection sleeve according to claim 8, further comprising:
and performing pre-shrinking treatment on the outer sleeve in the circumferential direction, so that the inner wall of the outer sleeve and the outer wall of the inner sleeve between two adjacent positioning needles are arranged in a contact manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268309.9A CN113031159A (en) | 2021-03-12 | 2021-03-12 | Optical fiber fusion welding protective sleeve and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268309.9A CN113031159A (en) | 2021-03-12 | 2021-03-12 | Optical fiber fusion welding protective sleeve and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113031159A true CN113031159A (en) | 2021-06-25 |
Family
ID=76470379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110268309.9A Pending CN113031159A (en) | 2021-03-12 | 2021-03-12 | Optical fiber fusion welding protective sleeve and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113031159A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202472034U (en) * | 2012-03-13 | 2012-10-03 | 深圳市光波通信有限公司 | Novel thermally shrinkable sleeve for optical fiber |
| CN105807369A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Optical fiber splicing heat-shrinkable bush and preshrinking method therefor |
| CN205958794U (en) * | 2016-08-24 | 2017-02-15 | 郭志强 | Rubber -sheathed lamp cord optic fibre hot melt pipe |
| CN206788410U (en) * | 2017-04-17 | 2017-12-22 | 任丘市志强塑料制品有限公司 | Tempreature bulb for fused fiber splice |
| CN206975248U (en) * | 2017-05-22 | 2018-02-06 | 苏州苏驼通信科技股份有限公司 | A kind of twin-core fiber tempreature bulb for heat molten type fiber active linker |
-
2021
- 2021-03-12 CN CN202110268309.9A patent/CN113031159A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202472034U (en) * | 2012-03-13 | 2012-10-03 | 深圳市光波通信有限公司 | Novel thermally shrinkable sleeve for optical fiber |
| CN105807369A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Optical fiber splicing heat-shrinkable bush and preshrinking method therefor |
| CN205958794U (en) * | 2016-08-24 | 2017-02-15 | 郭志强 | Rubber -sheathed lamp cord optic fibre hot melt pipe |
| CN206788410U (en) * | 2017-04-17 | 2017-12-22 | 任丘市志强塑料制品有限公司 | Tempreature bulb for fused fiber splice |
| CN206975248U (en) * | 2017-05-22 | 2018-02-06 | 苏州苏驼通信科技股份有限公司 | A kind of twin-core fiber tempreature bulb for heat molten type fiber active linker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4647150A (en) | Mechanical splice for optical fibers | |
| JP2015168597A (en) | Method for manufacturing optical fiber preform and method for manufacturing optical fiber | |
| JPS5848014A (en) | Manufacture of optical distributor | |
| JP6824156B2 (en) | Method for forming quartz glass products and quartz glass optical members | |
| US6089044A (en) | Process for making preforms for multicore optical fibers | |
| CN105073663A (en) | Method for manufacturing base material | |
| CN113589433A (en) | High-fiber-core-number multi-core fiber coupler based on fused biconical taper and preparation method thereof | |
| JP2014152045A (en) | Method for manufacturing base material for multi-core fiber and multi-core fiber | |
| JP2015215426A (en) | Multi-core fiber and production method thereof | |
| CN103576239A (en) | Method for manufacturing optical fiber beam combiner step by step | |
| CN113031159A (en) | Optical fiber fusion welding protective sleeve and manufacturing method thereof | |
| US6810691B2 (en) | Method for making glass tubing with multiple bores | |
| JP2015152871A (en) | Optical fiber device | |
| US5000537A (en) | Sleeve for an optical fiber connector and fabricating method therefor | |
| CN211688828U (en) | Multi-optical fiber side fusion beam combining device | |
| US5594823A (en) | Method of manufacturing a multi-fiber optical cross-coupler, and an optical cross-coupler obtained by performing the method | |
| EP4105185B1 (en) | Method for manufacturing a preform for a multi-core optical fiber and a multi-core optical fiber | |
| JPS6114489B2 (en) | ||
| JP2014071175A (en) | Reinforcement sleeve, reinforcement method of optical fiber connection section, and reinforcement structure | |
| JP5712026B2 (en) | Metal tube coated optical fiber cable connection structure and metal tube coated optical fiber cable connection method | |
| CN206788410U (en) | Tempreature bulb for fused fiber splice | |
| US20200180995A1 (en) | Method for producing a glass-fibre preform with a core of a polygonal core cross section | |
| JP4444270B2 (en) | Reinforcing structure, reinforcing method and reinforcing sleeve for optical fiber connection part | |
| CN214750926U (en) | Optical fiber splicing heat-shrinkable protection tube | |
| JP2012159761A (en) | Reinforcement sleeve, and reinforcement structure and reinforcement method for connection part of coated optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |