A non-equal diameter optical fiber ribbon and optical cable thereof

Abstract

The present invention provides a non-equal diameter optical fiber ribbon, comprising: a plurality of optical fiber units, wherein a plurality of optical fiber units of different diameters are arranged in groups and connected through an adhesive resin layer to form a non-equal diameter optical fiber ribbon; this can not only effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon, but also be applicable to the requirements of different communication terminals or routes for optical fibers with different performances, and more effectively improve the flexible applicability of the optical fiber ribbon.

Description

Technical Field

[0001] The present invention relates to the technical field of optical communication, and in particular to a non-equal diameter optical fiber ribbon and an optical cable thereof. Background Art

[0002] Conventional optical fiber ribbon cables are made of optical fibers of the same diameter, and different numbers of optical fiber ribbons are formed into usable optical fiber ribbon cables through sheathing, twisting, sheathing and other process technologies, which are laid in communication pipelines for use to provide reliable optical communication routes for communication networks. With the development of modern communication technology, optical fiber communication has begun to face the needs of multiple business scenarios, especially the need for higher density optical cable connections in metropolitan area networks and the need for smaller communication pipeline space limitations, making the existing optical fiber ribbon cable technology and products often unable to meet the above needs.

[0003] Existing communication services usually take into account and connect the needs of multiple communication terminals and lines, and often require the use of multiple types of optical fibers at the same time. Ribbon optical cables are usually cabled using optical fibers of the same type and size, or using optical fibers with better performance to meet the requirements, which inevitably increases costs and makes it difficult to meet multi-service needs. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a non-equal-diameter optical fiber ribbon and an optical cable thereof, which effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon, can be applicable to the requirements of different communication terminals or routes for optical fibers with different performances, and effectively improve the flexible applicability of the optical fiber ribbon.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] A non-uniform diameter optical fiber ribbon comprises: a plurality of optical fiber units, wherein the optical fiber units with different diameters are arranged in groups and connected through an adhesive resin layer to form the non-uniform diameter optical fiber ribbon.

[0007] The present invention provides a non-equal diameter optical fiber ribbon and an optical cable thereof, which effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon, can be applicable to the requirements of different communication terminals or routes for optical fibers with different performances, and effectively improve the flexible applicability of the optical fiber ribbon.

[0008] As a preferred technical solution, every two adjacent optical fiber units are bonded together by an adhesive resin layer to form an edge-bonded structure of a non-equal-diameter optical fiber ribbon.

[0009] As a preferred technical solution, the outer side of the non-equal diameter optical fiber ribbon is fully coated with an adhesive resin layer to form a non-equal diameter optical fiber ribbon fully coated structure.

[0010] As a preferred technical solution, a non-equal-diameter optical fiber ribbon edge bonding structure is provided in the middle position of the non-equal-diameter optical fiber ribbon, and non-equal-diameter optical fiber ribbon full-covering structures are provided on both sides of the non-equal-diameter optical fiber ribbon edge bonding structure to form a non-equal-diameter optical fiber ribbon hybrid structure.

[0011] As a preferred technical solution, multiple optical fiber units of different diameters are grouped and arranged in such a manner that a first optical fiber unit group is provided in the middle position, the first optical fiber unit group is composed of 4 or 8 optical fibers of equal diameter, a second optical fiber unit group and a third optical fiber unit group are respectively provided on both sides of the first optical fiber unit group, the second optical fiber unit group is composed of 2 or 4 optical fiber units of equal diameter, the third optical fiber unit group is composed of 2 or 4 optical fiber units of equal diameter, the diameter of each optical fiber unit in the first optical fiber unit group is larger than the diameter of each optical fiber unit in the second optical fiber unit group, the diameter of each optical fiber unit in the first optical fiber unit group is larger than the diameter of each optical fiber unit in the third optical fiber unit group, and the diameter of each optical fiber unit in the second optical fiber unit group is equal to the diameter of each optical fiber unit in the third optical fiber unit group.

[0012] As a preferred technical solution, the optical fiber unit is a single-mode optical fiber unit or a multi-mode optical fiber unit.

[0013] The present invention also provides an optical cable of non-equal diameter optical fiber ribbons, comprising the non-equal diameter optical fiber ribbon as described in any of the above items, wherein a plurality of non-equal diameter optical fiber ribbons are arranged in an array to form an optical fiber ribbon array structure, wherein the optical fiber ribbon array structure is arranged in an array according to the number of non-equal diameter optical fiber ribbons and the number of optical fiber units provided on each non-equal diameter optical fiber ribbon, the number of non-equal diameter optical fiber ribbons is 1-99, and the number of optical fiber units in the non-equal diameter optical fiber ribbon is 2-24.

[0014] As a preferred technical solution, a water-blocking functional layer is provided on the outer side of the optical fiber ribbon array structure and a continuous polymer material protective layer is extruded to form a complete basic optical unit.

[0015] As a preferred technical solution, multiple layers of protective material are coated on the outside of the basic optical unit to form a central tube type optical fiber ribbon cable.

[0016] As a preferred technical solution, a plurality of the basic optical units are twisted to obtain a basic optical unit twisted structure, and multiple layers of protective material are coated outside the basic optical unit twisted structure to form a skeleton-type ribbon optical cable.

[0017] The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which have the following beneficial effects:

[0018] 1) The present invention provides a non-uniform optical fiber ribbon and an optical cable thereof, which adopts optical fiber units of different diameters arranged in parallel to form a non-uniform optical fiber ribbon, which can be applied to the requirements of different communication terminals or routes for optical fibers with different performances, and effectively improves the flexible applicability of the optical fiber ribbon;

[0019] 2) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which can effectively reduce the size of the sleeve and the size of the optical cable of the optical fiber ribbon unit, and effectively solve the occupation of pipeline resources by the optical fiber ribbon and the optical cable;

[0020] 3) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which supplements and enriches the product series of optical fiber ribbons and optical cables;

[0021] 4) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which can effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural diagram of a non-uniform diameter optical fiber ribbon provided by the present invention, specifically an edge bonding type structure of a non-uniform diameter optical fiber ribbon;

[0023] Figure 2 A structural diagram of a non-uniform optical fiber ribbon provided by the present invention, specifically a non-uniform optical fiber ribbon fully covered structure;

[0024] Figure 3 A structural diagram of a non-equal diameter optical fiber ribbon provided by the present invention, specifically a hybrid structure of a non-equal diameter optical fiber ribbon;

[0025] Figure 4 A structural diagram of an optical cable with non-equal diameter optical fiber ribbon provided by the present invention, specifically a structural diagram of a central tube optical fiber ribbon cable;

[0026] Figure 5 A structural diagram of an optical cable with non-equal diameter optical fiber ribbon provided by the present invention, specifically a structural diagram of a skeleton-type ribbon optical cable;

[0027] Figure 6 A structural diagram of an optical cable of a non-equal diameter optical fiber ribbon provided by the present invention;

[0028] Figure 7 A process flow chart of preparing a non-uniform diameter optical fiber ribbon provided by the present invention;

[0029] Among them: 1-first optical fiber unit group; 2-second optical fiber unit group; 3-third optical fiber unit group; 31-optical fiber unit; 4-adhesive resin layer; 5-optical fiber ribbon array structure; 6-loose tube; 7-armor layer; 8-optical cable outer sheath; 9-reinforcement member; 10-water blocking tape; 11-tear rope. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] It can be understood that the present invention achieves the purpose of the present invention through some embodiments.

[0032] like Figure 1 As shown, a non-equal diameter optical fiber ribbon provided by the present invention comprises: 12 optical fiber units, a first optical fiber unit group 1 is arranged in the middle position of the non-equal diameter optical fiber ribbon, the first optical fiber unit group 1 consists of four optical fiber units 31 with a diameter of 250 microns, every two adjacent optical fiber units 31 with a diameter of 250 microns are connected by an adhesive resin layer 4 to form the first optical fiber unit group 1, and a second optical fiber unit group 2 and a third optical fiber unit group 3 are symmetrically arranged on both sides of the first optical fiber unit group 1 along the first optical fiber unit group 1, the second optical fiber unit group 2 consists of four optical fiber units 31 with a diameter of 200 microns, the third optical fiber unit group 3 consists of four optical fiber units 31 with a diameter of 200 microns, every two adjacent optical fiber units 31 with a diameter of 200 microns are connected by an adhesive resin layer 4 to form an edge bonding structure of the non-equal diameter optical fiber ribbon.

[0033] like Figure 2 As shown, the present invention provides a non-equal diameter optical fiber ribbon, in which a first optical fiber unit group 1 is provided in the middle position of the non-equal diameter optical fiber ribbon, the first optical fiber unit group 1 is composed of four optical fiber units 31 with a diameter of 250 microns, and a second optical fiber unit group 2 and a third optical fiber unit group 3 are symmetrically provided on both sides of the first optical fiber unit group 1 along the first optical fiber unit group 1, the second optical fiber unit group 2 is composed of four optical fiber units 31 with a diameter of 200 microns, and the third optical fiber unit group 3 is composed of four optical fiber units 31 with a diameter of 200 microns; the first optical fiber unit group 1, the second optical fiber unit group 2 and the third optical fiber unit group 3 are arranged in parallel and are fully coated with an adhesive resin layer 4 on the outside to form a fully coated structure of the non-equal diameter optical fiber ribbon.

[0034] like Figure 3 As shown, the present invention provides a non-equal diameter optical fiber ribbon, in which a first optical fiber unit group 1 is provided in the middle position of the non-equal diameter optical fiber ribbon, the first optical fiber unit group 1 is composed of four optical fiber units 31 with a diameter of 250 microns arranged in parallel, wherein every two adjacent 250 micron optical fiber units 31 are bonded by an adhesive resin layer 4, and a second optical fiber unit group 2 and a third optical fiber unit group 3 are symmetrically provided on both sides of the first optical fiber unit group 1 along the first optical fiber unit group 1, the second optical fiber unit group 2 is composed of four optical fiber units 31 with a diameter of 200 microns, and the third optical fiber unit group 3 is composed of four optical fiber units 31 with a diameter of 200 microns, and every four optical fiber units 31 with a diameter of 200 microns are arranged in parallel and are fully covered with an adhesive resin layer 4 on the outside to form a non-equal diameter optical fiber ribbon hybrid structure.

[0035] like Figure 4 As shown, the present invention provides an optical cable of non-equal diameter optical fiber ribbons, in which 10 non-equal diameter optical fiber ribbons and 12 optical fiber units are arranged in an array at the center of the optical cable to form an optical fiber ribbon array structure 5, and multiple layers of protective material layers are arranged on the outside of the optical fiber ribbon array structure 5. The multiple layers of protective material layers include: a loose tube 6, an armor layer 7 and an optical cable outer sheath 8. Furthermore, a loose tube 6, an armor layer 7 and an optical cable outer sheath 8 are sequentially arranged on the outside of the optical fiber ribbon array structure 5 to form a central tube optical fiber ribbon cable.

[0036] like Figure 5 As shown, an optical cable of non-equal-diameter optical fiber ribbons provided by the present invention has a reinforcement member 9 at the center of the optical cable, and 6 groups of optical fiber ribbon array structures 5 are evenly arranged in a circumference outside the reinforcement member 9, and multiple layers of protective material layers are arranged outside the optical fiber ribbon array structure 5. The multiple layers of protective material layers include: a tear rope 11, a water-blocking tape 10, an armor layer 7 and an optical cable outer sheath 8. Furthermore, water-blocking tapes 10 are filled between the optical fiber ribbon array structures 5, and tear ropes 11, water-blocking tapes 10, armor layers 7 and optical cable outer sheaths 8 are arranged in sequence outside the optical fiber ribbon array structure 5 to form a skeleton-type ribbon optical cable.

[0037] like Figure 6 As shown, an optical cable of non-equal-diameter optical fiber ribbons provided by the present invention has a reinforcement member 9 at the center of the optical cable, 6 groups of loose tubes 6 are evenly arranged in a circle outside the reinforcement member 9, an optical fiber ribbon array structure 5 is arranged in each group of loose tubes 6, and a multi-layer protective material layer is arranged outside the loose tube 6, and the multi-layer protective material layer includes: loose tubes 6, water blocking tapes 10 and optical cable outer sheath 8, and further, loose tubes 6, water blocking tapes 10 and optical cable outer sheath 8 are arranged in sequence outside the optical fiber ribbon array structure 5.

[0038] The present invention also provides a non-equal diameter optical fiber ribbon, comprising: a plurality of optical fiber units, wherein the optical fiber units of different diameters are arranged in groups and connected through an adhesive resin layer to form a non-equal diameter optical fiber ribbon, and the diameter of the optical fiber unit is preferably 250 microns, 245 microns, 200 microns, 180 microns or 80 microns.

[0039] The present invention also provides an optical cable of non-equal diameter optical fiber ribbons, wherein a plurality of non-equal diameter optical fiber ribbons are arranged in an array to form an optical fiber ribbon array structure, wherein the optical fiber ribbon array structure is preferably arranged in an array by arranging 16 non-equal diameter optical fiber ribbons and each non-equal diameter optical fiber ribbon is provided with 12 optical fiber units;

[0040] The optical fiber ribbon array structure is preferably arranged in an array by arranging 12 optical fiber ribbons of unequal diameter and each optical fiber ribbon of unequal diameter is provided with 12 optical fiber units 31;

[0041] The optical fiber ribbon array structure is preferably arranged in an array by arranging 8 non-uniform diameter optical fiber ribbons and each non-uniform diameter optical fiber ribbon is provided with 12 optical fiber units 31;

[0042] The optical fiber ribbon array structure is preferably arranged in an array by arranging 6 optical fiber ribbons of unequal diameter and each optical fiber ribbon of unequal diameter is provided with 12 optical fiber units 31;

[0043] The optical fiber ribbon array structure is preferably arranged in an array by arranging four optical fiber ribbons of unequal diameters and each of the optical fiber ribbons of unequal diameters is provided with 12 optical fiber units 31 .

[0044] The present invention also provides a process for preparing a non-uniform diameter optical fiber ribbon, comprising the following steps:

[0045] S1 colors the optical fiber unit 31;

[0046] S2 The colored optical fiber units 31 are arranged in groups;

[0047] S4: coating the grouped optical fiber units 31 with adhesive resin to form an adhesive resin layer 4 to form an unequal diameter optical fiber ribbon;

[0048] S5 reeling completes the recovery of non-uniform diameter optical fiber ribbons.

[0049] The present invention can effectively reduce the overall size of the non-equal diameter optical fiber ribbon by more than 12% through the combination of optical fiber units of different diameters, and effectively improve the bending characteristics and attenuation performance of the non-equal diameter optical fiber ribbon. Taking the optical fiber ribbon cable of the present invention formed by an optical fiber ribbon array structure (12*12 array) in which 12 non-equal diameter optical fiber ribbons and each non-equal diameter optical fiber ribbon are arranged in an array manner as an example, taking the optical fiber ribbon cable of the present invention formed by an optical fiber ribbon array structure (6*12 array) in which 6 non-equal diameter optical fiber ribbons and each non-equal diameter optical fiber ribbon are arranged in an array manner as an example, the bending performance of the tested optical cable is shown in Table 1 below:

[0050] Table 1 Bending performance of optical fiber ribbon array structures with different arrangements

[0051]

[0052] The bending performance test of the optical fiber ribbon array structure with different arrangement modes in Table 1 was carried out according to the method E6 "repeated bending" in GB / T7424.2-2008. The optical fiber ribbon array structure test provided by the present invention was carried out by arranging 12 non-equal diameter optical fiber ribbons and each non-equal diameter optical fiber ribbon was provided with 12 optical fiber units 31. It was found that there was no obvious additional attenuation of the optical fibers in the optical cable. The optical fiber ribbon array structure test was carried out by arranging 6 non-equal diameter optical fiber ribbons and each non-equal diameter optical fiber ribbon was provided with 12 optical fiber units 31. It was found that there was no obvious additional attenuation of the optical fibers in the optical cable. Therefore, from Table 1, we can clearly obtain that the non-equal diameter optical fiber ribbon provided by the present invention can effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon.

[0053] The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which have the following beneficial effects:

[0054] 1) The present invention provides a non-uniform optical fiber ribbon and an optical cable thereof, which adopts optical fiber units of different diameters arranged in parallel to form a non-uniform optical fiber ribbon, which can be applied to the requirements of different communication terminals or routes for optical fibers with different performances, and effectively improves the flexible applicability of the optical fiber ribbon;

[0055] 2) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which can effectively reduce the size of the sleeve and the size of the optical cable of the optical fiber ribbon unit, and effectively solve the occupation of pipeline resources by the optical fiber ribbon and the optical cable;

[0056] 3) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which supplements and enriches the product series of optical fiber ribbons and optical cables;

[0057] 4) The present invention provides a non-uniform diameter optical fiber ribbon and an optical cable thereof, which can effectively improve the bending characteristics and attenuation performance of the optical fiber ribbon.

[0058] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all various changes or equivalent substitutions falling within the scope of the claims of the present application are included. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope protected by the present invention.

Claims

1. A non-uniform diameter optical fiber ribbon, characterized in that: include: A plurality of optical fiber units, wherein the optical fiber units of different diameters are arranged in groups and connected by an adhesive resin layer to form a non-uniform diameter optical fiber ribbon, wherein the optical fiber units of different diameters are arranged in groups in such a manner that a first optical fiber unit group is arranged in the middle, and a second optical fiber unit group and a third optical fiber unit group are arranged on both sides of the first optical fiber unit group, wherein the diameter of each optical fiber unit in the first optical fiber unit group is greater than the diameter of each optical fiber unit in the second optical fiber unit group, the diameter of each optical fiber unit in the first optical fiber unit group is greater than the diameter of each optical fiber unit in the third optical fiber unit group, and the diameter of each optical fiber unit in the second optical fiber unit group is equal to the diameter of each optical fiber unit in the third optical fiber unit group; Every two adjacent optical fiber units are bonded by a bonding resin layer to form an edge bonding type structure of a non-uniform diameter optical fiber ribbon; Or the outer side of the non-uniform optical fiber ribbon is fully coated with an adhesive resin layer to form a non-uniform optical fiber ribbon fully coated structure; Alternatively, a non-equal-diameter optical fiber ribbon edge bonding structure is provided in the middle of the non-equal-diameter optical fiber ribbon, and non-equal-diameter optical fiber ribbon full-covering structures are provided on both sides of the non-equal-diameter optical fiber ribbon edge bonding structure to form a non-equal-diameter optical fiber ribbon hybrid structure.

2. The non-uniform diameter optical fiber ribbon according to claim 1, characterized in that: The first optical fiber unit group is composed of 4 or 8 optical fibers of equal diameter, the second optical fiber unit group is composed of 4 or 2 optical fiber units of equal diameter, and the third optical fiber unit group is composed of 4 or 2 optical fiber units of equal diameter.

3. The non-uniform diameter optical fiber ribbon according to claim 1, characterized in that: The optical fiber unit is a single-mode optical fiber unit or a multi-mode optical fiber unit.

4. An optical cable with non-equal diameter optical fiber ribbons, characterized in that: It comprises the non-uniform diameter optical fiber ribbon as claimed in any one of claims 1 to 3, wherein a plurality of non-uniform diameter optical fiber ribbons are arranged in an array to form an optical fiber ribbon array structure.

5. The optical cable of non-equal diameter optical fiber ribbons according to claim 4, characterized in that: A water-blocking functional layer is arranged on the outer side of the optical fiber ribbon array structure, and a continuous polymer material protective layer is extruded to form a complete basic optical unit.

6. The optical cable of non-equal diameter optical fiber ribbons according to claim 5, characterized in that: Multiple layers of protective material are coated on the outside of the basic optical unit to form a central tube type optical fiber ribbon cable.

7. The optical cable of non-equal diameter optical fiber ribbons according to claim 5, characterized in that: A plurality of the basic optical units are twisted together to obtain a basic optical unit twisted structure, and a plurality of protective material layers are coated outside the basic optical unit twisted structure to form a skeleton-type ribbon optical cable.

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