CN209879048U - Compact structure's optical fiber bundle for communication - Google Patents
Compact structure's optical fiber bundle for communication Download PDFInfo
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- CN209879048U CN209879048U CN201920622561.3U CN201920622561U CN209879048U CN 209879048 U CN209879048 U CN 209879048U CN 201920622561 U CN201920622561 U CN 201920622561U CN 209879048 U CN209879048 U CN 209879048U
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Abstract
The utility model belongs to the technical field of communication, in particular to a compact-structure optical fiber bundle for communication, which is provided with a plurality of optical fibers and a protective layer which tightly coats all the optical fibers, wherein the nominal diameter values of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protective layer is characterized in that every two adjacent optical fibers are tangent, all the optical fibers are tangent to the inner edge of the protective layer, and cylindrical spaces which can be simultaneously tangent to all the optical fibers are formed inside all the optical fibers. The utility model discloses mainly have following beneficial technological effect: the inner diameter of the optical module is effectively reduced, the outer diameter of the optical module is reduced, the cost is lower, the weight is lighter, the laying and the maintenance are more convenient, the occupied space is less, and the cost of rented pipelines and the like is lower.
Description
Technical Field
The utility model belongs to the technical field of communication, especially, relate to a compact structure's optical fiber bundle for communication.
Background
With the development of the communication industry, the demand and the usage of the optical fiber cables are increased day by day, and the space is limited, so that the requirement on the compactness of the optical fibers is higher and higher, the space can be saved, the cost of the optical fiber cables can be saved, the renting cost of pipelines and the like can be saved, and for pipeline holders, after the optical fiber cables are compact in structure, more optical fiber cables can be placed in the same pipeline, so that more users can be rented, and more rent can be obtained. CN1482484Y discloses a small core number optical fiber bundle for optical transmission, which is composed of optical fibers and a sleeve, wherein the optical fibers are arranged in the sleeve, the cross sections of the optical fibers form a two-dimensional hexagonal close-packed structure, and the outermost optical fibers are arranged outside the side surface of a regular hexagonal prism composed of secondary outer optical fibers and are stacked at the common nearest neighbor position of the outer sides of every two adjacent optical fibers in the secondary outer optical fibers. CN101546012A discloses an optical fiber unit, which is a UV optical fiber bundle and its manufacturing method. The UV optical fiber bundle is formed by fixing a plurality of optical fibers in the ultraviolet curing resin at intervals in a bundle shape, the section of the UV optical fiber bundle is circular, and all the optical fibers are colored optical fibers, bare optical fibers or the mixture of the colored optical fibers and the bare optical fibers. CN109581605A discloses a multicore optic fibre bundle optical cable and manufacturing method thereof, relates to communication optical cable technical field. The utility model discloses multicore optic fibre optical cable is including the central reinforcement that is located the center, and the transposition sets up many optic fibre microbeamformer units around the central reinforcement, and optic fibre microbeamformer unit includes the microbeam and sets up a plurality of core fiber in the microbeam, and the outside cover of all optic fibre microbeam units is equipped with the oversheath layer, and it has reinforcing element to fill between oversheath layer and the optic fibre microbeam unit. CN201425633Y discloses an optical fiber bundle unit, which comprises a glass fiber reinforced support and optical fibers, wherein the optical fibers are arranged on the periphery of the glass fiber reinforced support, coated by an adhesive and cured to form an optical fiber bundle, and each optical fiber has a different color. Although the above-mentioned documents disclose some fiber bundle structures, the applicant believes that there is also room for making the fiber bundle structure more compact.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, the present application aims to make the optical fiber bundle in the prior art more compact in structure and higher in core density.
In embodiments 1 to 10 of the present application, a compact optical fiber bundle for communications, which has a plurality of optical fibers and a protective layer that tightly covers all the optical fibers, wherein the optical fibers have nominally the same diameter and are arranged in a ring shape; the optical fiber protective layer is characterized in that every two adjacent optical fibers are tangent, all the optical fibers are tangent to the inner edge of the protective layer, and cylindrical spaces which can be simultaneously tangent to all the optical fibers are formed inside all the optical fibers.
The optical fiber bundle for communication of embodiment 4 is characterized in that the cylindrical space is replaced by one optical fiber having the same diameter as any one of the optical fibers, and the optical fiber is one of the optical fibers, that is, seven optical fibers having the same diameter.
The optical fiber bundle for communication of practical examples 5 to 10, which has a compact structure, is characterized in that the cylindrical space is filled with a cylindrical filler, which may be a solid filler or a foamed filler.
An optical fiber bundle for communication with a compact structure, having eight optical fibers and a protective layer tightly covering all the optical fibers, wherein the nominal values of the diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that adjacent optical fibers are mutually non-tangent, the axial distances of the adjacent optical fibers are equal, eight optical fibers are tangent to the inner edge of the protection layer, a cylindrical space which can be tangent to the eight optical fibers simultaneously is formed inside the eight optical fibers, the diameter of the cylindrical space 2 is larger than that of the optical fibers, any two adjacent optical fibers are taken, the axes of the two adjacent optical fibers are in a first plane, and a plane which passes through the axes of the cylindrical space and is perpendicular to the first plane is a second plane; inside the inner edge, the upper and lower optical fibers closest to the left side of the second plane are tangent and most of the optical fibers are positioned in the cylindrical space and provided with second optical fibers, the upper and lower optical fibers closest to the right side of the second plane are tangent and most of the optical fibers are positioned in the cylindrical space and provided with first optical fibers, the first optical fibers and the second optical fibers are tangent or have gaps with each other, and fillers for fixing the positions of the optical fibers relatively are arranged in the cylindrical spaces above and below the second plane.
The optical fiber bundle for communication having a compact structure as described above is characterized in that the first optical fiber and the second optical fiber have the same diameter, the first optical fiber has the same diameter as the optical fiber, and the optical fiber is made of the first optical fiber and the second optical fiber.
Alternatively, the compact-structured optical fiber bundle for communication may be characterized in that the first optical fiber and the second optical fiber have the same diameter, the diameter of the first optical fiber is larger than that of the optical fiber, and the optical fiber is made of the material of the first optical fiber and the second optical fiber.
Further, in the optical fiber bundle for communication having a compact configuration, in the cylindrical space above and below the second plane, a diameter of a cylinder formed in contact with both the first optical fiber and the second optical fiber and in contact with any one of the optical fibers is smaller than a diameter of the optical fiber.
An optical fiber bundle for communication with compact structure, having nine optical fibers and a protective layer tightly covering all the optical fibers, wherein the nominal values of the diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the compact optical fiber bundle for communication is characterized in that every two adjacent optical fibers are tangent, nine optical fibers are tangent to the inner edge of the protective layer, a cylindrical space which can be tangent to the nine optical fibers simultaneously is formed inside the nine optical fibers, the diameter of the cylindrical space is larger than that of the optical fibers, any two adjacent optical fibers are taken, the first optical fiber is called a first optical fiber, the second optical fiber is called a second optical fiber, and the like are sequentially analogized in the clockwise direction, namely a third optical fiber, a fourth optical fiber, a fifth optical fiber, a sixth optical fiber, a seventh optical fiber, an eighth optical fiber and a ninth optical fiber, and the compact optical fiber bundle for communication further comprises a first optical fiber which is tangent to the first optical fiber and the second optical fiber, and a second optical fiber which is tangent to the fifth optical fiber and the sixth optical fiber, the most part of first light guide fiber is located cylindrical space, and the most part of second light guide fiber is located cylindrical space, and first light guide fiber is tangent or has gapped each other with the second light guide fiber, all has the filler that makes the relative fixed in light guide fiber position in the cylindrical space of the top and the below of the plane that first light guide fiber's axis and second light guide fiber's axis formed.
The application mainly has the following beneficial technical effects: the inner diameter of the optical module is effectively reduced, the outer diameter of the optical module is reduced, the cost is lower, the weight is lighter, the laying and the maintenance are more convenient, the occupied space is less, and the cost of rented pipelines and the like is lower.
Drawings
FIG. 1 is a schematic cross-sectional structure of example 1.
FIG. 2 is a schematic cross-sectional structure of example 2.
FIG. 3 is a schematic cross-sectional structure of example 3.
FIG. 4 is a schematic cross-sectional structure of example 4.
FIG. 5 is a schematic cross-sectional structure of example 5.
Fig. 6 is a schematic cross-sectional structure of embodiment example 6.
FIG. 7 is a schematic cross-sectional structure of example 7.
Fig. 8 is a schematic cross-sectional structure of embodiment example 8.
Fig. 9 is a schematic cross-sectional structure of example 9.
Fig. 10 is a schematic cross-sectional structure of embodiment example 10.
Fig. 11 is a schematic cross-sectional structure of example 11.
Fig. 12 is a schematic cross-sectional structure of embodiment example 12.
Fig. 13 is a schematic cross-sectional structure of example 13.
Detailed Description
Examples 1
Referring to fig. 1, a compact optical fiber bundle for communications has three optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, and the nominal diameters of the optical fibers are equal; the method is characterized in that the three optical fibers 1 are tangent pairwise, the three optical fibers 1 are tangent to the inner edge 31 of the protective layer 3, cylindrical spaces 2 which can be tangent to the three optical fibers simultaneously are formed inside the three optical fibers 1 which are tangent pairwise, and the diameter of each cylindrical space is smaller than that of each optical fiber.
EXAMPLES example 2
Referring to fig. 2, a compact optical fiber bundle for communications has four optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, the nominal values of the diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, the four optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, cylindrical spaces 2 which can be tangent to the four optical fibers simultaneously are formed inside the four optical fibers 1, and the diameter of each cylindrical space is smaller than that of each optical fiber.
EXAMPLE 3
Referring to fig. 3, a compact optical fiber bundle for communications has five optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, five optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, cylindrical spaces 2 which can be tangent to the five optical fibers simultaneously are formed inside the five optical fibers 1, and the diameter of each cylindrical space is smaller than that of each optical fiber.
EXAMPLE 4
Referring to fig. 4, a compact optical fiber bundle for communications has six optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, six optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, a cylindrical space 2 which can be tangent to the six optical fibers simultaneously is formed inside the six optical fibers 1, and the diameter of the cylindrical space is equal to that of the optical fibers.
The compact optical fiber bundle for communication as described above is characterized in that the cylindrical space is replaced by one optical fiber having the same diameter as any one of the optical fibers, and the optical fiber is one of the optical fibers, that is, seven optical fibers having the same diameter.
EXAMPLE 5
Referring to fig. 5, a compact optical fiber bundle for communications, which has seven optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, seven optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, a cylindrical space 2 which can be tangent to the seven optical fibers simultaneously is formed inside the seven optical fibers 1, the diameter of the cylindrical space is larger than that of the optical fibers, and the cylindrical space is cylindrical filler.
EXAMPLE 6
Referring to fig. 6, a compact optical fiber bundle for communications, which has eight optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, eight optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, a cylindrical space 2 which can be tangent to the eight optical fibers simultaneously is formed inside the eight optical fibers 1, the diameter of the cylindrical space is larger than that of the optical fibers, and the cylindrical space is cylindrical filler.
EXAMPLES example 7
Referring to fig. 7, a compact optical fiber bundle for communications, which has nine optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, nine optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, cylindrical spaces 2 which can be tangent to the nine optical fibers simultaneously are formed inside the nine optical fibers 1, the diameter of each cylindrical space is larger than that of each optical fiber, and each cylindrical space is cylindrical filler.
EXAMPLES example 8
Referring to fig. 8, a compact optical fiber bundle for communications, which has ten optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, ten optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, cylindrical spaces 2 which can be tangent to the ten optical fibers simultaneously are formed inside the ten optical fibers 1, the diameter of each cylindrical space is larger than that of each optical fiber, and each cylindrical space is cylindrical filler.
EXAMPLES example 9
Referring to fig. 9, a compact optical fiber bundle for communications, which has eleven optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, the nominal diameters of the optical fibers being equal, the optical fibers being arranged in a ring; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, eleven optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, cylindrical spaces 2 which can be tangent to the eleven optical fibers simultaneously are formed inside the eleven optical fibers 1, the diameter of each cylindrical space is larger than that of each optical fiber, and each cylindrical space is cylindrical filler.
EXAMPLES 10
Referring to fig. 10, a compact optical fiber bundle for communications has twelve optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring; the optical fiber protection device is characterized in that every two adjacent optical fibers 1 are tangent, twelve optical fibers 1 are tangent to the inner edge 31 of the protection layer 3, a cylindrical space 2 which can be tangent to the twelve optical fibers simultaneously is formed inside the twelve optical fibers 1, the diameter of the cylindrical space is larger than that of the optical fibers, and the cylindrical space is cylindrical filler.
EXAMPLES example 11
Referring to fig. 11, a compact optical fiber bundle for communications, which has eight optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that adjacent optical fibers 1 are mutually non-tangent and have equal axial spacing, eight optical fibers 1 are all tangent to the inner edge 31 of the protection layer 3, a cylindrical space 2 which can be simultaneously tangent to the eight optical fibers is formed inside the eight optical fibers 1, the diameter of the cylindrical space 2 is larger than that of the optical fibers 1, wherein any two adjacent optical fibers are taken, the axes of the two adjacent optical fibers are in a first plane, and a plane which passes through the axis of the cylindrical space 2 and is perpendicular to the first plane is a second plane; inside the inner edge, with the most upper and lower two optical fibers tangent and the position of being closest to the left of second plane most be located cylindrical space 2 and have second optical fiber 12, with the most upper and lower two optical fibers tangent and the position of being closest to the right side of second plane most be located cylindrical space 2 and have first optical fiber 11, first optical fiber 11 and second optical fiber 12 are tangent or have the clearance each other, all have the filler that makes the optical fiber position relatively fixed in the cylindrical space of second plane top and below.
The optical fiber bundle for communication having a compact structure as described above is characterized in that the first optical fiber 11 and the second optical fiber 12 have the same diameter, the first optical fiber 11 has the same diameter as the optical fiber, and the optical fibers are made of the materials of the first optical fiber 11 and the second optical fiber 12.
Alternatively, the compact-structured optical fiber bundle for communication is characterized in that the first optical fiber 11 and the second optical fiber 12 have the same diameter, the diameter of the first optical fiber 11 is larger than that of the optical fiber, and the materials of the first optical fiber 11 and the second optical fiber 12 are the optical fibers.
Further, in the optical fiber bundle for communication having a compact configuration, in the cylindrical spaces above and below the second plane, the diameter of a cylinder formed in contact with both the first optical fiber 11 and the second optical fiber 12 and in contact with any one of the optical fibers is smaller than the diameter of the optical fiber.
EXAMPLE 12
Referring to fig. 12, a compact optical fiber bundle for communications, which has nine optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the compact optical fiber bundle for communication is characterized in that every two adjacent optical fibers 1 are tangent, nine optical fibers 1 are tangent to the inner edge 31 of the protective layer 3, a cylindrical space 2 which can be tangent to nine optical fibers simultaneously is formed inside the nine optical fibers 1, the diameter of the cylindrical space is larger than that of the optical fibers, any two adjacent optical fibers are taken, the first optical fiber is called a first optical fiber and the second optical fiber is called a second optical fiber according to the clockwise direction, and the like, the first optical fiber, the fourth optical fiber, the fifth optical fiber, the sixth optical fiber, the seventh optical fiber, the eighth optical fiber and the ninth optical fiber are respectively arranged in the clockwise direction, the compact optical fiber bundle for communication further comprises a first optical fiber 11 tangent to the first optical fiber and the second optical fiber, and a second optical fiber 12 tangent to the fifth optical fiber and the sixth optical fiber, the first light guide fiber 11 is mostly located in the cylindrical space, the second light guide fiber 12 is mostly located in the cylindrical space, the first light guide fiber 11 and the second light guide fiber 12 are tangent or have gaps with each other, and fillers for relatively fixing the positions of the light guide fibers are arranged in the cylindrical space above and below a plane formed by the axis of the first light guide fiber and the axis of the second light guide fiber.
The optical fiber bundle for communication having a compact structure as described above is characterized in that the first optical fiber 11 and the second optical fiber 12 have the same diameter, the first optical fiber 11 has the same diameter as the optical fiber, and the optical fibers are made of the materials of the first optical fiber 11 and the second optical fiber 12.
Alternatively, the compact-structured optical fiber bundle for communication is characterized in that the first optical fiber 11 and the second optical fiber 12 have the same diameter, the diameter of the first optical fiber 11 is larger than that of the optical fiber, and the materials of the first optical fiber 11 and the second optical fiber 12 are the optical fibers.
Further, in the optical fiber bundle for communication having a compact configuration, in the cylindrical spaces above and below the plane formed by the axis of the first optical fiber and the axis of the second optical fiber, the diameter of the cylinder formed in contact with both the first optical fiber 11 and the second optical fiber 12 and in contact with either optical fiber is smaller than the diameter of the optical fiber.
EXAMPLES example 13
Referring to fig. 13, a compact optical fiber bundle for communications, which has nine optical fibers 1 and a protective layer 3 that tightly covers all the optical fibers, wherein the nominal diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that adjacent optical fibers 1 are not tangent in pairs, gaps outside the adjacent optical fibers are called outer gaps, nine optical fibers 1 are internally tangent to a cylindrical inner tangent layer, the axis of the inner tangent layer is overlapped with the axis of a protection layer, the diameter of the inner tangent layer is not larger than that of the inner edge 31 of the protection layer, and optical fibers with the same diameter as the optical fibers 1 cannot be accommodated between any outer gap and the inner edge 31 of the corresponding protection layer; the optical fiber bundle for communication with compact structure is characterized in that a cylindrical space 2 which can be tangent with nine optical fibers simultaneously is formed inside the nine optical fibers 1, the diameter of the cylindrical space is larger than that of the optical fibers, any two adjacent optical fibers are taken, the first optical fiber is called as a first optical fiber, the second optical fiber is called as a second optical fiber, and the like, the first optical fiber, the fourth optical fiber, the fifth optical fiber, the sixth optical fiber, the seventh optical fiber, the eighth optical fiber and the ninth optical fiber are respectively arranged in the clockwise direction, the optical fiber bundle for communication with compact structure further comprises a first optical fiber 11 which is tangent with the first optical fiber and the second optical fiber, a third optical fiber 13 which is tangent with the fourth optical fiber and the fifth optical fiber, and a second optical fiber 12 which is tangent with the seventh optical fiber and the eighth optical fiber, first light guide fiber 11 is mostly located cylindrical space, second light guide fiber 12 is mostly located cylindrical space, third light guide fiber 13 is mostly located cylindrical space, first light guide fiber 11 is tangent or have gapped each other with second light guide fiber 12, first light guide fiber 11 is tangent or have gapped each other with third light guide fiber 13, second light guide fiber 12 is tangent or have gapped each other with third light guide fiber 13, first light guide fiber, the second light guide fiber, all have the filler that makes the light guide fiber position relatively fixed in the outer cylindrical space of third light guide fiber.
The optical fiber bundle for communication having a compact structure is characterized in that the first optical fiber 11, the second optical fiber 12 and the third optical fiber 13 have the same diameter, the first optical fiber 11 has the same diameter as the optical fiber, and the first optical fiber 11, the second optical fiber 12 and the third optical fiber 13 are made of optical fibers.
Alternatively, the compact-structured optical fiber bundle for communication is characterized in that the first optical fiber 11, the second optical fiber 12 and the third optical fiber 13 have the same diameter, the diameter of the first optical fiber 11 is larger than that of the optical fibers, and the optical fibers are made of the materials of the first optical fiber 11, the second optical fiber 12 and the third optical fiber 13.
Of course, in a compact optical fiber bundle for communications as described in the present application, there may be a gap between the optical fibers distributed in a ring shape and the protective layer, but, needless to say, the smallest structure, the most compact and the lower cost can be achieved when the optical fibers are tangent; when the gap is formed, the optical fiber has enough movement space, so that the optical fiber has enough extension and strain space when the optical fiber is subjected to external force and temperature change, and the mechanical and optical performances are stable when the temperature and the stress change are achieved.
The compact optical fiber bundle for communication in the present application is characterized in that the optical fiber is a single mode optical fiber or a multimode optical fiber.
Further, the optical fiber bundle for communication with compact structure is characterized in that the single mode fiber or the multimode fiber is coated with a tight cladding layer, and the material of the tight cladding layer is nylon or PVC or polytetrafluoroethylene; therefore, the optical module has better pressure resistance and impact force buffering performance.
Further, the compact optical fiber bundle for communication in the present application is characterized in that the gap can be filled with water-blocking substances, such as ointment, water-blocking yarn, water-blocking powder, other dry fillers, even curing glue, resin, etc.
The protective layer is made of PVC or nylon or polyethylene or polypropylene or polyacrylic acid or polytetrafluoroethylene or nylon and other plastics.
Since the diameter of the common single-mode optical fiber or multimode optical fiber is about 245 micrometers, after the structure of the present application is adopted, the minimum inner diameter of the protective layer of the 3-core optical module is 0.53mm, the minimum inner diameter of the protective layer of the 4-core optical module is 0.59mm, the minimum inner diameter of the protective layer of the 5-core optical module is 0.66mm, the minimum inner diameter of the protective layer of the 6-core optical module is 0.74mm, the minimum inner diameter of the protective layer of the 7-core optical module is 0.74mm, the minimum inner diameter of the protective layer of the 8-core optical module is 0.81mm, the minimum inner diameter of the protective layer of the 9-core optical module is 0.89mm, the minimum inner diameter of the protective layer of the 10-core optical module is 0.96mm, the minimum inner diameter of the protective layer of the 11-core optical module is 0.97mm, the minimum inner diameter of the protective layer of the 12-core optical module is 1.0 mm. In the prior art, currently, the minimum inner diameter of a 12 optical module protection layer is 1.4mm, the minimum inner diameter of a 10 optical module protection layer is 1.2mm, and the minimum inner diameter of an 8 optical module protection layer is 1.0 mm; therefore, the inner diameter of the optical module is effectively reduced, the outer diameter of the optical module can be reduced, and therefore the optical module is lower in cost, lighter in weight, more convenient to lay and maintain, less in occupied space, lower in cost of leased pipelines and the like.
While the preferred embodiments of the present invention have been disclosed, the scope of the present invention should not be limited by the above description, but should be understood by those skilled in the art as broadly as possible and various modifications and equivalents may be made without departing from the spirit and scope of the invention.
Claims (8)
1. An optical fiber bundle for communication having a compact structure, comprising a plurality of optical fibers and a protective layer for tightly covering all the optical fibers, wherein the optical fibers have the same nominal diameter and are arranged in a ring; the optical fiber protective layer is characterized in that every two adjacent optical fibers are tangent, all the optical fibers are tangent to the inner edge of the protective layer, and cylindrical spaces which can be simultaneously tangent to all the optical fibers are formed inside all the optical fibers.
2. The compact optical fiber bundle for communications according to claim 1, wherein the number of the optical fibers is 6; the cylindrical space is replaced by a light guide fiber which has the same diameter as any one of the light guide fibers, and the light guide fiber is one of the light guide fibers, namely, seven light guide fibers with the same diameter.
3. The optical fiber bundle for communication of claim 1, wherein the cylindrical space is a cylindrical filler, a solid filler, or a foam filler.
4. An optical fiber bundle for communication with a compact structure, having eight optical fibers and a protective layer tightly covering all the optical fibers, wherein the nominal values of the diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the optical fiber protection device is characterized in that adjacent optical fibers are mutually non-tangent, the axial distances of the adjacent optical fibers are equal, eight optical fibers are tangent to the inner edge of the protection layer, a cylindrical space which can be tangent to the eight optical fibers simultaneously is formed inside the eight optical fibers, the diameter of the cylindrical space 2 is larger than that of the optical fibers, any two adjacent optical fibers are taken, the axes of the two adjacent optical fibers are in a first plane, and a plane which passes through the axes of the cylindrical space and is perpendicular to the first plane is a second plane; inside the inner edge, the upper and lower optical fibers closest to the left side of the second plane are tangent and most of the optical fibers are positioned in the cylindrical space and provided with second optical fibers, the upper and lower optical fibers closest to the right side of the second plane are tangent and most of the optical fibers are positioned in the cylindrical space and provided with first optical fibers, the first optical fibers and the second optical fibers are tangent or have gaps with each other, and fillers for fixing the positions of the optical fibers relatively are arranged in the cylindrical spaces above and below the second plane.
5. The compact optical fiber bundle for communication according to claim 4, wherein the first and second optical fibers have the same diameter, and the diameter of the first optical fiber is the same as the diameter of the optical fiber, and the material of the first and second optical fibers is the optical fiber.
6. The compact optical fiber bundle for communication according to claim 4, wherein the first and second optical fibers have the same diameter, and the diameter of the first optical fiber is larger than that of the optical fiber, and the optical fibers are made of the first and second optical fibers.
7. The compact optical fiber bundle for communication according to claim 6, wherein the diameter of the cylinder formed by the cylinder tangent to both the first optical fiber and the second optical fiber and tangent to any one of the optical fibers is smaller than the diameter of the optical fibers in the cylindrical space above and below the second plane.
8. An optical fiber bundle for communication with compact structure, having nine optical fibers and a protective layer tightly covering all the optical fibers, wherein the nominal values of the diameters of the optical fibers are equal, and the optical fibers are arranged in a ring shape; the compact optical fiber bundle for communication is characterized in that every two adjacent optical fibers are tangent, nine optical fibers are tangent to the inner edge of the protective layer, a cylindrical space which can be tangent to the nine optical fibers simultaneously is formed inside the nine optical fibers, the diameter of the cylindrical space is larger than that of the optical fibers, any two adjacent optical fibers are taken, the first optical fiber is called a first optical fiber, the second optical fiber is called a second optical fiber, and the like are sequentially analogized in the clockwise direction, namely a third optical fiber, a fourth optical fiber, a fifth optical fiber, a sixth optical fiber, a seventh optical fiber, an eighth optical fiber and a ninth optical fiber, and the compact optical fiber bundle for communication further comprises a first optical fiber which is tangent to the first optical fiber and the second optical fiber, and a second optical fiber which is tangent to the fifth optical fiber and the sixth optical fiber, the most part of first light guide fiber is located cylindrical space, and the most part of second light guide fiber is located cylindrical space, and first light guide fiber is tangent or has gapped each other with the second light guide fiber, all has the filler that makes the relative fixed in light guide fiber position in the cylindrical space of the top and the below of the plane that first light guide fiber's axis and second light guide fiber's axis formed.
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