Glass optical fiber with ultra-large core diameter

Abstract

The utility model discloses a glass optical fiber with an ultra-large core diameter, and belongs to the technical field of glass optical fibers. A glass optical fiber with an ultra-large core diameter comprises a protection assembly, the protection assembly comprises a protection sleeve, a buffer assembly is arranged at the bottom of the protection sleeve, the buffer assembly comprises a rubber pad, an optical fiber body is arranged in the middle of the protection sleeve, and the optical fiber body comprises a fiber core. The damage risk caused by extrusion and impact force to the optical fiber is remarkably reduced, the position of the glass optical fiber in the equipment can be more stable, displacement caused by external slight vibration or shaking is not likely to happen, and when personnel conduct troubleshooting on a complex line, the work efficiency is improved. And the risk that the glass optical fiber is excessively bent and damaged due to accidental touch can be effectively reduced. The adsorption force of the sucker ensures the stability of the optical fiber in the using process, and reliable guarantee is provided for normal operation of the glass optical fiber.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass optical fiber technical field more specifically, relate to a kind of glass optical fiber of super large core diameter. BACKGROUND

[0002] Super large core diameter glass optical fiber refers to the glass optical fiber with fiber core diameter significantly larger than that of ordinary optical fiber. The fiber core diameter of ordinary single-mode optical fiber is generally about 8-10 μm, and the fiber core diameter of multi-mode optical fiber is usually 50-62.5 μm, while the fiber core diameter of super large core diameter glass optical fiber can reach several hundred microns or even millimeter level. For example, the fiber core diameter of some super large core diameter optical fiber used for high-power laser transmission can reach 1000 μm (1 mm), and super large core diameter glass optical fiber is commonly used in laser processing industry, lighting field and medical field.

[0003] The existing glass optical fiber has obvious fragility problem in actual use. Due to the material characteristics of glass optical fiber, it is often easily extruded by external force. Once subjected to external pressure, the internal fiber body may be damaged. The existing glass optical fiber usually relies on external rubber layer for protection. However, this single protection method has limited protection performance. Although the rubber layer can reduce external slight collision and friction to a certain extent, its buffering capacity is obviously insufficient to effectively protect the internal fiber body, which seriously affects the reliability and service life of the glass optical fiber.

[0004] In addition, in actual use, the existing glass optical fiber often lacks effective fixing assembly, which leads to that the glass optical fiber is easily touched during the line checking operation of the equipment by personnel. Since the glass optical fiber is fragile, it is easily over-bent after being touched, and thus faces the risk of being broken. Once the optical fiber is over-bent, the internal fiber core and cladding structure may be irreversibly damaged, which seriously affects the transmission quality and stability of optical signal. For example, in some complex equipment environment, the line is interlaced, and the glass optical fiber lacking fixing assembly is more easily accidentally touched, which greatly increases the possibility of optical fiber damage. This not only brings hidden danger to the normal operation of the equipment, but also increases the maintenance cost and repair difficulty.

[0005] Therefore, we propose a kind of glass optical fiber of super large core diameter. UTILITY MODEL CONTENT

[0006] 1. Technical problem to be solved

[0007] The utility model aims to provide a kind of glass optical fiber of super large core diameter to solve the problems raised in the above background.

[0008] 2. Technical scheme

[0009] An oversized core glass optical fiber, comprising a protective assembly, the protective assembly comprising a protective sleeve, the bottom of the protective sleeve being provided with a buffer assembly, the buffer assembly comprising a rubber pad, the middle of the protective sleeve being provided with an optical fiber body, the optical fiber body comprising a core.

[0010] Preferably, the top of the protective sleeve is provided with a slot, the inner wall of the slot is provided with an arc-shaped protective piece, and the optical fiber body is arranged inside the slot.

[0011] Preferably, the top of the rubber pad is provided with a buffer strip, and the top of the plurality of buffer strips is adhered to the bottom of the protective sleeve.

[0012] Preferably, the bottom of the rubber pad is provided with a plurality of suction cups, and the plurality of suction cups are arranged in a rectangular array.

[0013] Preferably, the circumferential outer wall of the core is wrapped with a cladding layer, the circumferential outer wall of the cladding layer is coated with a coating layer, and the circumferential outer wall of the coating layer is wrapped with a rubber sleeve.

[0014] Preferably, the circumferential outer wall of the rubber sleeve is adhered to the inner wall of the slot, the thickness of the rubber sleeve is slightly thicker than that of the coating layer, and the thickness of the coating layer is slightly thinner than that of the cladding layer.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that when the glass optical fiber is used and subjected to external extrusion, the external protective sleeve and the plurality of arc-shaped protective pieces arranged on the inner wall of the slot can play an important protective role against the acting force of external extrusion or impact. When external force acts on the glass optical fiber, the arc-shaped protective pieces will first bear a part of the acting force and transmit it to the protective sleeve. The protective sleeve has a certain elasticity and toughness and can absorb and relieve external force to a certain extent. Meanwhile, the rubber pad at the bottom of the protective sleeve can cooperate with the plurality of buffer strips at the top thereof to effectively buffer the impact force or extrusion force. The unique design of the plurality of arc-shaped protective pieces can uniformly transmit most of the acting force to the protective sleeve, thereby greatly reducing the direct extrusion on the core. Such a structural design can better ensure the safety of the glass optical fiber in use and significantly reduce the damage risk of the optical fiber caused by extrusion and impact force.

[0017] When the glass optical fiber is used and installed, the plurality of suction cups at the bottom of the rubber pad can be adsorbed on the wire arrangement plate inside the equipment. Such an installation mode makes the position of the glass optical fiber inside the equipment more stable and less likely to be displaced due to slight external vibration or shaking. When a person checks a complex circuit, the risk of damage to the glass optical fiber caused by excessive bending due to accidental touch can be effectively reduced. The adsorption force of the suction cups ensures the stability of the optical fiber during use and provides a reliable guarantee for the normal operation of the glass optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Fig. 2 This is a schematic diagram of the rubber pad structure of the utility model;

[0020] Fig. 3 This is a schematic diagram of the optical fiber main structure of the utility model;

[0021] Explanation of the reference numerals in the figure: 100, protective sleeve; 110, arc-shaped protective sheet; 200, buffer strip; 210, rubber pad; 220, suction cup; 300, rubber sleeve; 310, coating layer; 320, cladding; 330, fiber core. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] See also Figs. 1-3 , the utility model provides a technical solution:

[0026] The utility model provides a kind of super large core diameter glass optical fiber, including protective assembly, protective assembly includes protective sleeve 100, protective sleeve 100 bottom is provided with buffer assembly, buffer assembly includes rubber pad 210, protective sleeve 100 middle is provided with optical fiber main body, optical fiber main body includes core 330, protective sleeve 100 is rubber material, it is convenient to protect glass optical fiber and buffer the force suffered by it.

[0027] Specifically, the top of the protective sleeve 100 is provided with a slot, and the inner wall of the slot is provided with an arc-shaped protective sheet 110.

[0028] In some embodiments: a plurality of the arc-shaped protective sheets 110 are made of engineering plastic material, such as polycarbonate (PC), which has high toughness, high strength and good dimensional stability, and can withstand a large impact force without easily breaking, and can effectively disperse external forces to the protective sleeve 100 when protecting the glass optical fiber.

[0029] Further, the top of the rubber pad 210 is provided with a buffer strip 200, and a plurality of buffer strips 200 are adhered to the bottom of the protective sleeve 100, and the plurality of buffer strips 200 are made of silica gel material, which can effectively play a certain buffering role.

[0030] Further, the bottom of the rubber pad 210 is provided with a plurality of suction cups 220, which are arranged in a rectangular array, so as to fix the glass optical fiber by using the plurality of suction cups 220, thereby reducing the problem of excessive bending and damage of the glass optical fiber caused by accidental contact.

[0031] Further, the circumferential outer wall of the core 330 is wrapped with a cladding layer 320, the circumferential outer wall of the cladding layer 320 is coated with a coating layer 310, and the circumferential outer wall of the coating layer 310 is wrapped with a rubber sleeve 300, so as to protect the core 330 by using the coating layer 310.

[0032] It is worth noting that the circumferential outer wall of the rubber sleeve 300 is adhered to the inner wall of the slot, the thickness of the rubber sleeve 300 is slightly thicker than that of the coating layer 310, and the thickness of the coating layer 310 is thicker than that of the cladding layer 320.

[0033] In some embodiments: the cladding layer 320 surrounds the core, and has a slightly lower refractive index than the core 330, which mainly restricts the propagation of optical signals inside the core 330 by forming total reflection at the interface between the core 330 and the cladding layer 320, and is generally made of silica material, but has different doping components than the core to obtain a lower refractive index, and the coating layer 310 is mainly composed of polymer material, and common materials include acrylate materials, which have good flexibility and adhesion, and can be closely attached to the surface of the cladding layer 320 for protection, all of which belong to the prior art.

[0034] Working principle: when the glass optical fiber is subjected to external extrusion, the outer protective sleeve 100 and the plurality of arc-shaped protective pieces 110 arranged on the inner wall of the slot can play an important protective role against the external extrusion or impact force, when the external force acts on the glass optical fiber, the arc-shaped protective pieces 110 will first bear a part of the force and transmit it to the protective sleeve 100, the protective sleeve 100 has a certain elasticity and toughness and can absorb and relieve the external force to a certain extent, at the same time, the rubber pad 210 at the bottom of the protective sleeve 100 can cooperate with the plurality of buffer strips 200 at the top of the protective sleeve 100 to effectively buffer the impact force or extrusion force, the unique design of the plurality of arc-shaped protective pieces can uniformly transmit most of the force to the protective sleeve, thereby greatly reducing the direct extrusion on the fiber core, such a structural design can better ensure the safety of the glass optical fiber in use, significantly reduce the damage risk of the optical fiber caused by the extrusion and impact force, and when the glass optical fiber is installed for use, the plurality of suction cups 220 at the bottom of the rubber pad 210 can be adsorbed on the wire arrangement plate inside the equipment, such an installation mode makes the position of the glass optical fiber inside the equipment more stable and less likely to be displaced due to slight external vibration or shaking, when a person checks the complex line, the risk of damage of the glass optical fiber caused by excessive bending due to accidental touch can be effectively reduced, the adsorption force of the suction cup 220 ensures the stability of the optical fiber during use, and a reliable guarantee is provided for the normal operation of the glass optical fiber.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A glass optical fiber with an ultra-large core diameter, including a protective assembly, characterized in that: The protective assembly comprises a protective sleeve (100), a buffer assembly is provided at the bottom of the protective sleeve (100), the buffer assembly comprises a rubber pad (210), an optical fiber body is provided in the middle of the protective sleeve (100), and the optical fiber body comprises a fiber core (330).

2. The ultra-large core diameter glass optical fiber according to claim 1, characterized in that: A slot is provided on the top of the protective sleeve (100), an arc-shaped protective sheet (110) is provided on the inner wall of the slot, and the optical fiber body is arranged inside the slot.

3. The ultra-large core diameter glass optical fiber according to claim 2, characterized in that: A buffer strip (200) is provided on the top of the rubber pad (210), and the tops of a plurality of buffer strips (200) are adhered to the bottom of the protective cover (100).

4. The ultra-large core diameter glass optical fiber according to claim 3, characterized in that: A plurality of suction cups (220) are provided at the bottom of the rubber pad (210), and the plurality of suction cups (220) are arranged in a rectangular array.

5. The ultra-large core diameter glass optical fiber according to claim 4, characterized in that: The circumferential outer wall of the fiber core (330) is wrapped with a cladding (320), the circumferential outer wall of the cladding (320) is coated with a coating layer (310), and the circumferential outer wall of the coating layer (310) is wrapped with a rubber sleeve (300).

6. The ultra-large core diameter glass optical fiber according to claim 5, characterized in that: The circumferential outer wall of the rubber sleeve (300) is adhered to the inner wall of the slot; the thickness of the rubber sleeve (300) is slightly thicker than the coating layer (310); and the thickness of the coating layer (310) is slightly thinner than the cladding layer (320).

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