CN115480341A - Highly integrated multi-core optical fiber bundle end-face fusion device and application of the multi-core optical fiber bundle - Google Patents

Abstract

The invention relates to a highly integrated multi-core optical fiber bundle end face fusion device and the application of the multi-core optical fiber bundle, including an end face fusion quartz sleeve, an optical fiber bundle stainless steel outer protection tube and an optical fiber bundle inner protection tube. The optical fiber bundle stainless steel outer The protective tube is wrapped outside the inner protective tube of the optical fiber bundle, and the end face fusion quartz sleeve is located at the input end of the inner protective tube of the optical fiber bundle, and is connected with the stainless steel outer protective tube of the optical fiber bundle, and the end face is fused with the optical fiber bundle in the quartz sleeve Fused in a hexagonal shape. Using the highly integrated multi-core fiber bundle end-face fusion device of the present invention and the use of the multi-core fiber bundle, the fiber bundle using the end-face fusion technology has higher transmission efficiency, higher temperature resistance, and can support larger laser projections. Effectively promote the development of the industry.

Description

Highly integrated multi-core optical fiber bundle end-face fusion device and application of the multi-core optical fiber bundle

technical field

The invention relates to the technical field of electric wires and cables, in particular to a highly integrated multi-core optical fiber bundle end face fusion device and the application of the multi-core optical fiber bundle.

Background technique

In the past laser projection industry, end-face glued and bundled fiber bundles were used, because the laser power required for laser projection is high, and the temperature at the incident end is also high, while the end face of ordinary end-face glued and bundled fiber bundles can withstand a temperature of 200°C ~250°C, which leads to the fact that the optical fiber bundle as the medium for transmitting the projected energy signal is easily damaged, and its service life is very short, which limits the development of the industry.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a highly integrated multi-core optical fiber bundle end-face fusion device and the use of the multi-core optical fiber bundle that meet the requirements of high transmission efficiency, high temperature resistance, and long service life.

In order to achieve the above object, the application of the highly integrated multi-core optical fiber bundle end face fusion device and the multi-core optical fiber bundle of the present invention is as follows:

The main feature of this highly integrated multi-core optical fiber bundle end-face fusion device is that the device includes an end-face fusion quartz sleeve, an optical fiber bundle stainless steel outer protection tube and an optical fiber bundle inner protection tube, and the optical fiber bundle stainless steel outer protection tube is wrapped Outside the inner protective tube of the optical fiber bundle, the end-face fused quartz sleeve is located at the input end of the inner protective tube of the optical fiber bundle, and is connected with the stainless steel outer protective tube of the optical fiber bundle. The optical fiber bundle in the end-face fused quartz sleeve has a hexagonal shape shape fusion.

Preferably, the device further includes a copper end-face protection sleeve, a copper radiator, and a stainless steel joint at the receiving end, and the two ends of the inner protection tube of the optical fiber bundle are respectively connected to the copper end-face protection sleeve, so that One end of the stainless steel outer protective tube of the optical fiber bundle is connected with the copper radiator, and the other end is connected with the stainless steel connector at the receiving end.

Preferably, the copper heat sink is wrapped outside the stainless steel outer protection tube of the optical fiber bundle and the copper end face protection sleeve, and the copper heat sink outside the copper end face protection sleeve is prismatic.

Preferably, the device further includes a product label, which is pasted on the outside of the protective tube inside the optical fiber bundle.

The application of the highly integrated multi-core optical fiber bundle in large-scale laser projection equipment with an optical fiber optical transmission system is mainly characterized in that the highly integrated multi-core optical fiber bundle is used to replace the optical fiber bundle in the large-scale laser projection equipment In order to achieve high power and high temperature resistance.

Using the highly integrated multi-core fiber bundle end-face fusion device of the present invention and the use of the multi-core fiber bundle, the fiber bundle using the end-face fusion technology has higher transmission efficiency, higher temperature resistance, and can support larger laser projections. Effectively promote the development of the industry.

Description of drawings

FIG. 1 is a schematic structural view of a highly integrated multi-core optical fiber bundle end face fusion device of the present invention.

Fig. 2 is a schematic diagram of the A side of the highly integrated multi-core optical fiber bundle end face fusion device of the present invention.

Fig. 3 is a schematic diagram of the B side of the highly integrated multi-core optical fiber bundle end face fusion device of the present invention.

Fig. 4 is a schematic view of the end face of the highly integrated multi-core optical fiber bundle end face fusion device of the present invention.

Fig. 5 is a schematic diagram of an optical fiber in an optical fiber bundle in the prior art.

Fig. 6 is a schematic diagram of the optical fibers in the optical fiber bundle of the highly integrated multi-core optical fiber bundle end face fusion device of the present invention.

Reference signs:

1 copper radiator

1a Copper end protection sleeve

2 End Fused Quartz Sleeves

3 Stainless steel connector at the receiving end

4 Fiber bundle stainless steel outer protective tube

5 Protective tube inside the fiber optic bundle

6 Product label

detailed description

In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

The highly integrated multi-core optical fiber bundle end-face fusion device of the present invention and the application of the multi-core optical fiber bundle thereof include an end-face fusion quartz sleeve 2, an optical fiber bundle stainless steel outer protection tube 4 and an optical fiber bundle inner protection tube 5. The optical fiber A bundle of stainless steel outer protection tube 4 is wrapped around the outside of the fiber bundle inner protection tube 5, and the end face fusion quartz sleeve 2 is located at the input end of the fiber bundle inner protection tube 5, and is connected with the fiber optic bundle stainless steel outer protection tube 4, and the described The fiber bundles in the end-face fused quartz sleeve 2 are fused in a hexagonal shape.

As a preferred embodiment of the present invention, the device also includes a copper end face protection sleeve 1a, a copper radiator 1, and a stainless steel joint 3 at the receiving end, and the two ends of the inner protection tube 5 of the optical fiber bundle are connected to the copper tube respectively. One end of the stainless steel outer protective tube 4 of the optical fiber bundle is connected with the copper radiator 1, and the other end is connected with the stainless steel joint 3 at the receiving end.

As a preferred embodiment of the present invention, the copper heat sink 1 is wrapped around the optical fiber bundle stainless steel outer protection tube 4 and the copper end face protection sleeve 1a, and the copper heat dissipation on the outside of the copper end face protection sleeve 1a Device 1 is prismatic.

As a preferred embodiment of the present invention, the device further includes a product label 6 attached to the outside of the inner protection tube 5 of the optical fiber bundle.

The application of the highly integrated multi-core optical fiber bundle of the present invention in a large-scale laser projection device with an optical fiber optical transmission system, wherein the highly integrated multi-core optical fiber bundle is used to replace the optical fiber bundle in the large-scale laser projection device to Achieve high power and high temperature resistance.

In a specific embodiment of the present invention, the working principle of the optical fiber bundle is to transmit energy and signals by using the theory that light can undergo total reflection in the optical fiber.

The particularity of this optical fiber bundle is that the end-face fusion technology is applied to the input end connector. This technology changes the original simple gluing and bundling of the optical fibers in the optical fiber bundle (as shown in Figure 1) into the current hexagonal fusion (as shown in Figure 2) ). The advantage of this is that the area of the input end that can accept effective light increases while the total area remains unchanged, and eliminates a part of the cladding mode when the fiber transmits energy, which can increase the overall transmission efficiency of the fiber bundle by 20%, and The withstand temperature of the end face of the fiber bundle can reach 600°C.

As shown in Figure 2, the optical fiber coating needs to be removed at the fused portion of the end face; the optical fiber coating does not need to be removed at the non-fused portion of the end face.

As shown in Figure 3, the optical fiber at the output end is glued.

As shown in Figure 4, the processing method at the input end A is to remove the coating layer of the optical fiber, and the remaining quartz material is applied with cross-section thermal fusion technology. The processing method at the output end B is to remove the coating layer of the optical fiber, and the remaining quartz material is simply bundled and glued.

In the past laser projection industry, end-face glued and bundled fiber bundles were used, because the laser power required for laser projection is high, and the temperature at the incident end is also high, while the end face of ordinary end-face glued and bundled fiber bundles can withstand a temperature of 200°C -250°C, which leads to the fact that the optical fiber bundle, which is used as the medium for transmitting projection energy signals, is easily damaged and has a short service life, which limits the development of the industry.

The fiber bundle with end-face fusion technology has higher transmission efficiency, higher temperature resistance, and can support larger laser projections, effectively promoting the development of the industry.

In specific use, the fiber bundle of this end-face fusion technology can determine the size of the spot according to the customer's requirements.

The style of the optical fiber bundle connector can also be customized. Connect the optical fiber bundle to the projection light source, and the laser will be transmitted along with the optical fiber bundle.

Using the highly integrated multi-core fiber bundle end-face fusion device of the present invention and the use of the multi-core fiber bundle, the fiber bundle using the end-face fusion technology has higher transmission efficiency, higher temperature resistance, and can support larger laser projections. Effectively promote the development of the industry.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims (5)

1. A highly integrated multi-core optical fiber bundle end-face fusion device, characterized in that the device includes an end-face fusion quartz sleeve (2), an optical fiber bundle stainless steel outer protection tube (4) and an optical fiber bundle inner protection tube (5) , the stainless steel outer protective tube (4) of the optical fiber bundle is wrapped outside the inner protective tube (5) of the optical fiber bundle, and the end-face fusion quartz sleeve (2) is located at the input end of the inner protective tube (5) of the optical fiber bundle, and It is connected with the stainless steel outer protective tube (4) of the optical fiber bundle, and the optical fiber bundle in the described end face fusion quartz sleeve (2) is fused in a hexagonal shape. 2. The highly integrated multi-core optical fiber bundle end face fusion device according to claim 1, characterized in that, the device also includes a copper end face protection sleeve (1a), a copper radiator (1), a take-up end A stainless steel joint (3), the two ends of the optical fiber bundle inner protection tube (5) are respectively connected to the copper end face protection sleeve (1a), and one end of the optical fiber bundle stainless steel outer protection tube (4) is connected to the copper end face protection sleeve (1a). The radiator (1) is connected with each other, and the other end is connected with the stainless steel joint (3) at the receiving end. 3. The highly integrated multi-core optical fiber bundle end face fusion device according to claim 1, characterized in that, the copper heat sink (1) is wrapped in an optical fiber bundle stainless steel outer protection tube (4) and a copper end face protection sleeve Outside the tube (1a), the copper radiator (1) outside the copper end face protection sleeve (1a) is in the shape of a rib. 4. The highly integrated multi-core bundle end-face fusion device according to claim 1, characterized in that, the device also includes a product label (6), which is pasted on the outside of the inner protective tube (5) of the optical fiber bundle. 5. An application of a highly integrated multi-core optical fiber bundle in a large-scale laser projection device with an optical fiber optical transmission system, characterized in that, the highly integrated multi-core optical fiber bundle is used to replace the Fiber bundle to achieve high power and high temperature resistance.

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