High temperature resistant miniaturized optical fiber collimator

Abstract

The utility model discloses a kind of high-temperature-resistant miniaturization optical fiber collimator, high-temperature-resistant miniaturization optical fiber collimator includes: the plug-in core for connecting optical fiber, the light exit side of plug-in core is provided with collimating lens, the optical fiber access side of plug-in core is horn mouth structure, plug-in core and collimating lens are fixed in sleeve, heat-absorbing material layer is provided outside sleeve, fixed outer shell for fixed heat-absorbing material layer is provided outside heat-absorbing material layer;The first external thread structure is set in the one end of sleeve in optical fiber access side, first adjusting nut is threadedly connected on first thread structure, a plurality of transmission rods are articulated on first adjusting nut, the other end of transmission rod is articulated on its corresponding claw plate, claw plate is resisted to one end of sleeve and the inside of claw plate is arc structure.The utility model can effectively improve the high-temperature-resistant capability of optical fiber collimator.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to a high-temperature resistant miniaturized optical fiber collimator. Background Technology

[0002] An optical fiber collimator is an optical element used for input and output in optical fiber communication devices. Its structure can transform diverging light from the optical fiber into parallel light (Gaussian beam) through a front-mounted convex lens. Its function is to couple light into the desired device with maximum efficiency or to receive optical signals with maximum efficiency.

[0003] Existing fiber optic collimators are prone to various temperature variations when used in high-temperature environments. For example, to accurately fix the fiber in the sleeve and maintain its relative position and angle (alignment), optical adhesives (such as epoxy resin and UV-curable adhesive) are usually used for bonding and sealing. However, optical adhesives are prone to softening, melting, thermal decomposition, and carbonization when exposed to high temperatures, which can damage the fiber's fixation and affect the use of the fiber optic collimator. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a high-temperature resistant miniaturized fiber optic collimator, which aims to improve the high-temperature resistance of the fiber optic collimator.

[0005] To achieve the above objectives, this utility model provides a high-temperature resistant miniaturized fiber optic collimator, comprising: a ferrule for connecting an optical fiber; a collimating lens disposed on the light-emitting side of the ferrule; a horn-shaped structure on the fiber optic inlet side of the ferrule; both the ferrule and the collimating lens being fixed within a sleeve; a heat-absorbing material layer disposed outside the sleeve; and a fixing outer shell disposed outside the heat-absorbing material layer for fixing the heat-absorbing material layer; a first external thread structure is provided at one end of the sleeve located on the fiber optic inlet side, and a first adjusting nut is threaded onto the first thread structure. Multiple transmission rods are hinged to the first adjusting nut, and the other end of each transmission rod is hinged to its corresponding claw plate. The claw plate abuts against one end of the sleeve, and the side of the claw plate facing the axis of the sleeve has an arc-shaped structure. The first adjusting nut is used to move towards the light-emitting side on the first external thread structure during the installation of the optical fiber, so as to drive each of the transmission rods to move towards the light-emitting side. Since each of the claw plates abuts against one end of the sleeve and cannot follow to the light-emitting side, it moves in a different direction to retract and clamp and lock the outer shell of the optical fiber, thereby fixing the optical fiber.

[0006] Optionally, there are four transmission rods and four corresponding claw plates, and the inner side of the claw plate has a quarter-circle structure adapted to the corresponding optical fiber to be clamped.

[0007] Optionally, the heat-absorbing material layer is a high-temperature resistant heat-insulating material, including aerogel felt and ceramic fiber felt, and the heat-absorbing material layer is used to absorb heat from the high-temperature resistant miniaturized fiber optic collimator or the external environment.

[0008] Optionally, the fixed outer shell has a hollow structure, which is used to increase the heat dissipation capacity of the high-temperature miniaturized fiber optic collimator.

[0009] Optionally, the heat-absorbing material layer is etched into a coolant channel, and coolant is injected into the coolant channel to reduce the overall temperature of the high-temperature miniaturized fiber optic collimator.

[0010] Optionally, the opposing surfaces of the ferrule and the collimating lens are mutually fitted bevels to ensure that the axes of the ferrule and the collimating lens are aligned, thereby improving transmission efficiency.

[0011] Optionally, both ends of the ferrule have a flared structure.

[0012] The beneficial effects of this utility model are as follows: 1. The sleeve of this utility model has a first external thread structure at one end on the optical fiber access side. A first adjusting nut is threaded onto the first thread structure, and multiple transmission rods are hinged to the first adjusting nut. The other end of each transmission rod is hinged to its corresponding claw plate. The claw plate abuts against one end of the sleeve, and the inner side of the claw plate has an arc-shaped structure. The first adjusting nut is used to move towards the light-emitting side on the first external thread structure during optical fiber installation, thereby driving each transmission rod to move towards the light-emitting side. Since each claw plate is abutting against one end of the sleeve and cannot follow the movement towards the light-emitting side, it moves in a different direction to contract and converge, clamping and locking the outer sleeve of the optical fiber, thus achieving the fixation of the optical fiber. This utility model can achieve mechanical fixation of the optical fiber through this structure, avoiding the use of optical adhesive, thereby increasing the overall heat resistance of the optical fiber collimator. In addition, since each claw plate is driven by the first adjusting nut, their displacement is consistent, so the clamping force on the optical fiber is also uniform, preventing the optical fiber from deflecting and ensuring the fixation quality of the optical fiber installation. 2. This utility model also provides a heat-absorbing material layer outside the sleeve, which reduces the temperature of the fiber collimator and further reduces the damage of high temperature to the fiber collimator.

[0013] In summary, this invention effectively improves the high-temperature resistance of the fiber optic collimator while ensuring accurate fixation of the optical fiber. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-temperature resistant miniaturized fiber optic collimator according to a specific embodiment of this utility model;

[0015] Figure 2This is a schematic diagram of the structure of a high-temperature resistant miniaturized fiber optic collimator from another angle in a specific embodiment of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of a high-temperature resistant miniaturized fiber optic collimator according to a specific embodiment of this utility model. Detailed Implementation

[0017] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0018] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0019] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0020] The applicant's research revealed that existing fiber optic collimators are prone to various temperature variations when used in high-temperature environments. For example, to accurately fix the fiber in the sleeve and maintain its relative position and angle (alignment), optical adhesives (such as epoxy resin and UV-curable adhesives) are typically used for bonding and sealing. However, these optical adhesives are susceptible to softening, melting, thermal decomposition, and carbonization under high temperatures, which can damage the fiber's fixation and affect the use of the fiber optic collimator.

[0021] Therefore, this utility model embodiment provides a high-temperature resistant miniaturized fiber optic collimator, such as... Figure 1-3As shown, the high-temperature resistant miniaturized fiber optic collimator includes: a ferrule 1 for connecting optical fibers, a collimating lens 2 on the light-emitting side of the ferrule 1, and a horn-shaped structure on the fiber optic inlet side of the ferrule 1. Both the ferrule 1 and the collimating lens 2 are fixed inside a sleeve 3. A heat-absorbing material layer 4 is provided outside the sleeve 3, and a fixing shell 5 for fixing the heat-absorbing material layer 4 is provided outside the heat-absorbing material layer 4. A first external thread structure is provided at one end of the sleeve 3 on the fiber optic inlet side. A first adjusting nut 7 is threaded onto the first thread structure 6. Multiple transmission rods 8 are hinged to the first adjusting nut 7. The other end of the transmission rod 8 is hinged to its corresponding claw plate 9. The claw plate 9 abuts against one end of the sleeve 3, and the side of the claw plate 9 facing the axis of the sleeve 3 has an arc-shaped structure.

[0022] The first adjusting nut 7 is used to move towards the light-emitting side on the first external thread structure during the installation of the optical fiber, so as to drive each transmission rod 8 to move towards the light-emitting side. Since each claw plate 9 is in contact with one end of the sleeve 3, it cannot follow the movement towards the light-emitting side and instead moves in a different direction to retract and gather, clamping and locking the outer sleeve of the optical fiber, thereby fixing the optical fiber.

[0023] like Figure 1 , Figure 2 as well as Figure 3 As shown, after the optical fiber is inserted into the ferrule 1, the first adjusting nut 7 rotates and moves towards the light-emitting side (the side of the collimating lens 2). The first adjusting nut 7 will drive the transmission rod 8 to move together. During the process of the transmission rod 8 also driving the claw plates 9 to move, due to the relationship between the hinge and the sleeve 3 limiting the claw plates 9, the movement towards the light-emitting side is transformed into the convergence movement of each claw plate 9 towards the axis of the sleeve 3, thereby clamping and locking the outer shell of the optical fiber, and fixing the optical fiber.

[0024] In addition, this embodiment of the invention also includes a heat-absorbing material layer 4, which can reduce the overall temperature of the fiber optic collimator, thereby reducing the impact of temperature on the fiber optic collimator.

[0025] In this specific embodiment, there are four transmission rods 8 and four claw plates 9, which correspond one-to-one. The inner side of the claw plate 9 is a quarter-circle structure adapted to the corresponding optical fiber that needs to be clamped.

[0026] Specifically, such as Figures 1-3 As shown, setting four claw plates 9 can make the optical fiber more evenly stressed during the fixing process, and avoid deflection that would affect the alignment of the optical fiber and the lens.

[0027] In this specific embodiment, the heat-absorbing material layer 4 is a high-temperature resistant heat insulation material, including aerogel felt and ceramic fiber felt. The heat-absorbing material layer 4 is used to absorb heat from the high-temperature resistant miniaturized fiber optic collimator or the external environment.

[0028] In this specific embodiment, the fixed outer shell 5 has a hollow structure, which is used to increase the heat dissipation capacity of the high-temperature miniaturized fiber collimator.

[0029] It should be noted that the hollow structure can increase heat dissipation capacity and prevent heat accumulation from causing the fiber optic collimator to heat up rapidly and affect transmission performance.

[0030] In this specific embodiment, the heat-absorbing material layer 4 is etched into a coolant channel, and coolant is injected into the coolant channel to reduce the overall temperature of the high-temperature miniaturized fiber optic collimator.

[0031] It should be noted that this structure further improves the heat dissipation performance of the fiber optic collimator.

[0032] In this specific embodiment, such as Figure 1-3 As shown, the opposing surfaces of the insert 1 and the collimating lens 2 are mutually fitted inclined surfaces to ensure that the axes of the insert 1 and the collimating lens 2 are aligned, thereby improving transmission efficiency.

[0033] In this specific embodiment, both ends of the ferrule 1 are flared structures.

[0034] In this embodiment of the invention, the sleeve 3 has a first external thread structure at one end on the optical fiber access side. A first adjusting nut 7 is threaded onto the first thread structure 6, and multiple transmission rods 8 are hinged to the first adjusting nut 7. The other end of each transmission rod 8 is hinged to its corresponding claw plate 9. The claw plate 9 abuts against one end of the sleeve 3, and its inner side has an arc-shaped structure. The first adjusting nut 7 is used to move towards the light-emitting side on the first external thread structure during optical fiber installation, thereby driving each transmission rod 8 to move towards the light-emitting side. Since each claw plate 9 is abutting against one end of the sleeve 3 and cannot follow the movement towards the light-emitting side, it moves in a different direction to contract and converge, clamping and locking the outer casing of the optical fiber, thus fixing the optical fiber. This embodiment of the invention achieves mechanical fixing of the optical fiber through this structure, avoiding the use of optical adhesive and thus increasing the overall heat resistance of the optical fiber collimator. Furthermore, in the corresponding structure of this utility model embodiment, since each claw plate 9 is driven by the first adjusting nut 7, their displacement is consistent, so the clamping force on the optical fiber is also uniform, avoiding the optical fiber from deflecting and ensuring the fixed quality of the optical fiber installation.

[0035] In this embodiment of the invention, a heat-absorbing material layer 4 is provided outside the sleeve 3. The heat-absorbing material layer 4 reduces the temperature of the fiber collimator, further reducing the damage of high temperature to the fiber collimator.

[0036] In summary, this embodiment of the invention effectively improves the high-temperature resistance of the optical fiber collimator while ensuring accurate fixation of the optical fiber.

[0037] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A high-temperature resistant miniaturized fiber optic collimator, characterized in that, The high-temperature resistant miniaturized fiber optic collimator includes: a ferrule for connecting an optical fiber; a collimating lens is disposed on the light-emitting side of the ferrule; the optical fiber inlet side of the ferrule has a flared structure; both the ferrule and the collimating lens are fixed inside a sleeve; a heat-absorbing material layer is disposed outside the sleeve; and a fixing shell for fixing the heat-absorbing material layer is disposed outside the heat-absorbing material layer; a first external thread structure is provided at one end of the sleeve located on the optical fiber inlet side; a first adjusting nut is threaded onto the first thread structure; and multiple drive pins are hinged to the first adjusting nut. The transmission rod has its other end hinged to its corresponding claw plate. The claw plate abuts against one end of the sleeve and has an arc-shaped structure facing the axis of the sleeve. The first adjusting nut is used to move towards the light-emitting side on the first external thread structure during optical fiber installation, thereby driving each of the transmission rods to move towards the light-emitting side. Since each of the claw plates abuts against one end of the sleeve and cannot follow the movement towards the light-emitting side, it moves in a different direction to retract and clamp and lock the outer sleeve of the optical fiber, thereby fixing the optical fiber.

2. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, There are four transmission rods and four corresponding claw plates. The inner side of the claw plate has a quarter-circle structure to fit the corresponding optical fiber that needs to be clamped.

3. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, The heat-absorbing material layer is a high-temperature resistant heat-insulating material, including aerogel felt and ceramic fiber felt. The heat-absorbing material layer is used to absorb heat from the high-temperature resistant miniaturized fiber optic collimator or the external environment.

4. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, The fixed outer shell has a hollow structure, which is used to increase the heat dissipation capacity of the high-temperature miniaturized fiber optic collimator.

5. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, The heat-absorbing material layer is etched with coolant channels, and coolant is injected into the coolant channels to reduce the overall temperature of the high-temperature miniaturized fiber optic collimator.

6. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, The opposing surfaces of the ferrule and the collimating lens are mutually fitted bevels to ensure that the axes of the ferrule and the collimating lens are aligned, thereby improving transmission efficiency.

7. The high-temperature resistant miniaturized fiber optic collimator according to claim 1, characterized in that, Both ends of the insert have a flared structure.

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