CN210401733U - Novel attenuation optical fiber - Google Patents

Abstract

The utility model relates to the technical field of attenuation optical fibers, in particular to a novel attenuation optical fiber, which comprises a fiber core, wherein the surface of the fiber core is fixedly connected with a cladding, the surface of the cladding is fixedly connected with a primary coating, the surface of the primary coating is fixedly connected with a buffer layer, the surface of the buffer layer is fixedly connected with a secondary coating, one end of the fiber core is fixedly connected with an attenuation core, and the surface of the attenuation core is fixedly connected with an attenuation cladding; the utility model discloses a fibre core and covering for when producing optic fibre, can be through the staff after the fibre core that will have the signal attenuation function is produced, can be directly with the covering, once cover the coating, buffer layer and secondary cover the coating successive layer and cover and install on the fibre core surface, can accomplish production thereupon, it is lower to have reached the simple and cost of operation process, and at the covering, once cover the coating, buffer layer and secondary cover the effect that the coating was whole to reach market application regulation requirement under the effect of coating.

Description

Novel attenuation optical fiber

Technical Field

The utility model relates to an attenuation optical fiber technology field specifically is a novel attenuation optical fiber.

Background

In the process of network data transmission, the cell transmission is gradually replaced by optical fiber transmission due to its characteristics of low efficiency and large loss, the optical fiber is a tool for transmitting signals by using the principle that optical signals are continuously reflected in filaments made of glass drawing, and the optical fiber is almost lossless, so that the optical signals transmitted to an optical receiver are often strong, and an attenuation optical fiber is needed to attenuate the optical signals to a proper degree, so as to avoid distortion of the optical receiver.

The existing attenuation optical fiber is only manufactured by one manufacturing enterprise in Korea and Canada respectively in the whole world at present, the manufacturing equipment is expensive, the manufacturing cost is high, the functions are not diversified, the cost of manufacturing enterprises and terminal engineers in all countries in the world using the optical fiber is very high, meanwhile, people manufacture the same optical fiber by utilizing a space gap technology and a punching technology, and the optical fiber dispersion requirement and the high-low temperature cycle requirement do not meet the requirements of market application regulations.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a novel decay optic fibre possesses low in production cost and the higher advantage of convenient operation qualification rate, has solved the lower problem of current decay optic fibre at manufacturing cost higher and qualification rate.

The utility model discloses a novel attenuation optic fibre, including the fibre core, the fixed surface of fibre core is connected with the covering, the fixed surface of covering is connected with once covers the coating, once cover the fixed surface of coating and be connected with the buffer layer, the fixed surface of buffer layer is connected with the secondary and covers the coating, the one end fixedly connected with attenuation core of fibre core, the fixed surface of attenuation core is connected with the attenuation covering.

The utility model discloses a novel attenuation optical fiber, wherein fibre core, covering, buffer layer, once cover the coating and the secondary covers the quantity of coating and be two, and one states fibre core, covering, buffer layer, once covers the coating and the secondary covers the coating is a set of, and two sets of fibre core, covering, buffer layer, once cover the coating and the secondary covers the both ends that the coating evenly distributed is at the attenuation core with the secondary, through two fibre cores for can feed through the attenuation core, guarantee the normal attenuation effect of attenuation optical fiber with this.

The utility model discloses a novel decay optic fibre, wherein two the secondary coats the surface of layer and all bonds and has the protection leather sheath, the inner wall swing joint of protection leather sheath has the fixed ball of scattering.

The utility model discloses a novel attenuation optic fibre, wherein the fixed ball of scattering is a vitrification 353ND epoxy glue and constitutes, and a secondary covers the coating and covers coating fixed connection through the fixed ball of scattering and another secondary, and the inside of the fixed ball of scattering will attenuate the surface of core and two sets of fibre cores, covering, buffer layer, once cover the coating and the secondary covers the even parcel of one end of coating.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a fibre core and covering for when producing optic fibre, can be through the staff after the fibre core that will have the signal attenuation function is produced, can be directly with the covering, once cover the coating, buffer layer and secondary cover the coating successive layer and cover and install on the fibre core surface, can accomplish production thereupon, it is lower to have reached the simple and cost of operation process, and at the covering, once cover the coating, buffer layer and secondary cover the effect that the coating was whole to reach market application regulation requirement under the effect of coating.

2. The utility model discloses a deformation of decay core for the fibre core, make by the optical signal who transmits in the fibre core refraction behind the entering fibre core, partly light continues to refract to the fibre core of the other end in, and other optical signal can be refracted to the fixed ball of scattering and cladding in, because the material restriction of the fixed ball of scattering itself, the refracting index of the fixed ball of scattering is greater than the refracting index of air, optical signal can continue to be regular refraction in the fixed ball of scattering, and via the fixed ball of scattering to other positions, can not continue to get back to the propagation of the follow-up optical signal of interference in the fibre core, the effect that the decay precision that makes the decay optic fibre is higher has been reached.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the utility model showing a top-down structure;

fig. 2 is a schematic diagram of the optical signal refraction path of the present invention.

In the figure: 1. a fiber core; 2. a cladding layer; 3. primary coating; 4. a buffer layer; 5. secondary coating; 6. an attenuating core; 7. protecting the leather sheath; 8. and scattering the fixed ball.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Please refer to fig. 1-2, the utility model discloses a novel attenuation optical fiber, including fiber core 1, the fixed surface of fiber core 1 is connected with cladding 2, the fixed surface of cladding 2 is connected with once covers coating 3, once cover the fixed surface of coating 3 and be connected with buffer layer 4, the fixed surface of buffer layer 4 is connected with secondary and covers coating 5, the one end fixedly connected with attenuation core 6 of fiber core 1, the fixed surface of attenuation core 6 is connected with attenuation cladding 2, through fiber core 1 and cladding 2, make when producing optical fiber, can produce fiber core 1 that has signal attenuation function through the staff after, can directly cover cladding 2, once cover coating 3, buffer layer 4 and secondary and cover coating 5 and install on fiber core 1 surface layer by layer, can accomplish production thereupon, reached the operating process simple and the cost is lower, and at cladding 2, once cover coating 3, The buffer layer 4 and the secondary coating 5 protect the whole optical fiber to achieve the effect required by market application regulations.

The number of the fiber core 1, the cladding 2, the buffer layer 4, the primary coating 3 and the secondary coating 5 is two, one of the fiber core 1, the cladding 2, the buffer layer 4, the primary coating 3 and the secondary coating 5 are a group, two groups of the fiber core 1, the cladding 2, the buffer layer 4, the primary coating 3 and the secondary coating 5 are uniformly distributed at two ends of the attenuation core 6, and the attenuation core 6 can be communicated through the two fiber cores 1, so that the normal attenuation effect of the attenuation fiber is ensured.

The surfaces of the two secondary coating layers 5 are both bonded with a protective leather sheath 7, the inner wall of the protective leather sheath 7 is movably connected with a scattering fixed ball 8, the scattering fixed ball 8 is made of vitrified 353ND epoxy glue, one secondary coating layer 5 is fixedly connected with the other secondary coating layer 5 through the scattering fixed ball 8, the surface of the attenuation core 6 and one end of the two fiber cores 1, the cladding 2, the buffer layer 4, the primary coating layer 3 and the secondary coating layer 5 are uniformly wrapped in the scattering fixed ball 8, through the deformation of the attenuation core 6 relative to the fiber cores 1, an optical signal transmitted from the fiber cores 1 is refracted after entering the fiber cores 1, part of light is continuously refracted to the fiber cores 1 at the other end, other optical signals can be refracted to the scattering fixed ball 8 and the cladding 2, and due to the limitation of the material of the scattering fixed ball 8, the refractive index of the scattering fixed ball 8 is larger than that of air, the optical signal can continue to be regularly refracted in the scattering fixed ball 8, and is scattered to other positions through the scattering fixed ball 8, and the optical signal can not continue to return to the fiber core 1 to interfere with the propagation of the subsequent optical signal, so that the effect of enabling the attenuation precision of the attenuation optical fiber to be higher is achieved.

When using the utility model discloses the time: respectively placing two optical fibers into an optical fiber V groove on an operation table with electrodes, aligning fiber cores 1 of central axes of the two optical fibers by observing a human-computer interaction interface or a visual magnifier on the operation table, closely attaching two ends of the two optical fibers by adjusting the operation table, then positioning an attaching interface at the middle position of the two electrodes, then performing repair connection by discharging the operation table, performing zero clearing on an optical fiber test instrument, then confirming to perform zero clearing again, taking the optical fibers out of the optical fiber V groove, bisecting at the joint of the fiber cores 1, then performing cutting treatment by using an optical fiber cutting knife after re-peeling, wiping the optical fibers by using dust-free paper to dip alcohol after completion, respectively placing the two optical fibers into the optical fiber V groove on the operation table with electrodes, adjusting the distance between the two optical fibers by observing the human-computer interaction interface or the visual magnifier on the operation table until the two optical fibers are all in the visual line, and continuously adjusting the left and right positions and the upper positions and the lower positions of, observing the reading change on the optical fiber test instrument while adjusting, adjusting and stopping at different positions according to different product requirements, then adjusting two optical fibers left and right to enable two fiber cores 1 to be tightly attached, enabling an attachment interface to be located at the middle position of two electrodes, discharging through an operation table, carrying out transformation, melting and pulling treatment on the interface to obtain the optical fibers with the loss of about 5dB, taking down the finished optical fibers, coating 353ND epoxy resin glue on the surface of an attenuation core 6, completing assembly of the attenuation optical fibers, changing the path of light refracted out from the fiber cores 1 and 2 due to the deformation of the attenuation core 6 relative to the fiber cores 1 when the optical fibers transmit signals, enabling a part of the light to enter a scattering fixed ball 8 after being refracted by the cladding 2 and be absorbed by the scattering fixed ball 8, enabling a part of the light to stay in the cladding 2 for endless reflection, and enabling the rest of the light to be continuously reflected to the fiber cores 1 at the heads in the fiber cores 1, so that the signal can be continuously propagated, thereby achieving the purpose of signal attenuation.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (4)

1. A novel attenuating fiber, comprising a core (1), characterized in that: the surface fixed connection of fibre core (1) has cladding (2), the surface fixed connection of cladding (2) has once to cover coating (3), the surface fixed connection of once covering coating (3) has buffer layer (4), the surface fixed connection of buffer layer (4) has twice to cover coating (5), the one end fixedly connected with of fibre core (1) attenuates core (6), the surface fixed connection of attenuating core (6) attenuates cladding (2).

2. The novel attenuating fiber of claim 1, wherein: the number of the fiber core (1), the cladding (2), the buffer layer (4), the primary coating (3) and the secondary coating (5) is two, one the fiber core (1), the cladding (2), the buffer layer (4), the primary coating (3) and the secondary coating (5) are a group, and the two groups of the fiber core (1), the cladding (2), the buffer layer (4), the primary coating (3) and the secondary coating (5) are uniformly distributed at two ends of the attenuation core (6).

3. The novel attenuating fiber of claim 1, wherein: the surface of the two secondary coating layers (5) is bonded with a protective leather sheath (7), and the inner wall of the protective leather sheath (7) is movably connected with a scattering fixed ball (8).

4. A novel attenuating fiber as claimed in claim 3, characterized in that: the scattering fixed ball (8) is formed by vitrified 353ND epoxy resin glue, one secondary coating layer (5) is fixedly connected with the other secondary coating layer (5) through the scattering fixed ball (8), and the surface of the attenuation core (6) and one end of the two groups of fiber cores (1), the cladding (2), the buffer layer (4), the primary coating layer (3) and the secondary coating layer (5) are uniformly wrapped by the scattering fixed ball (8).

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