Optical fiber fixing flange for laser device and laser device

Abstract

The utility model relates to a kind of optical fiber fixing flange and laser device for laser device, including flange matrix and the flange mounting plate fixed on flange matrix, flange matrix has the first through-hole in the bottom of flange matrix, the second through-hole in the top of flange matrix and the third through-hole between the first through-hole and the second through-hole, the first through-hole is configured to enter with the optical fiber of protective sleeve, the second through-hole is configured to enter with the bare optical fiber after the protective sleeve is removed, the third through-hole is configured to enter with the bare optical fiber of the optical fiber of first through-hole to enter to the second through-hole;Wherein, the first through-hole, the second through-hole and the third through-hole are coaxial line arrangement.Such, it can be with the optical fiber fixing flange to reliably fix optical fiber to laser device stably.

Description

Technical Field

[0001] This utility model relates to the field of optical fibers, and in particular to an optical fiber fixing flange for laser devices and a laser device. Background Technology

[0002] In the field of optical fiber communication technology, optical fiber transmission communication networks require many nodes. These nodes use laser devices to convert electrical signals into optical signals for output, and then convert the received optical signals back into electrical signals. At the optical transmission end of the laser device, components are needed to reliably fix the optical fiber to the laser device.

[0003] To reliably fix optical fibers to laser devices, the current common method is to press the optical fiber ceramic ferrule into a hollow metal sleeve with an interference fit, then insert the optical fiber into the metal sleeve and ceramic ferrule, and bond the optical fiber with 353ND adhesive. The resulting assembly (formed by the optical fiber, ceramic ferrule, and metal sleeve) is then fixed to the laser device's base using laser welding, thereby enabling the output and reception of optical signals.

[0004] However, the existing methods for fixing optical fibers to laser devices have shortcomings: when the ceramic ferrule is pressed into the metal sleeve, due to the fit tolerance between the ceramic ferrule and the metal sleeve, problems such as loosening, falling off, and cracking of the ceramic ferrule often occur, which adversely affect the lifespan of the laser device and even significantly reduce the reliability of the fixation. Utility Model Content

[0005] In view of this, the first technical problem to be solved by this utility model is to provide an optical fiber fixing flange for laser devices, which addresses the aforementioned prior art. Using this optical fiber fixing flange, optical fibers can be more reliably fixed to laser devices.

[0006] The second technical problem to be solved by this utility model is to provide a laser device using the above-mentioned optical fiber fixing flange.

[0007] The technical solution adopted by this utility model to solve the first technical problem is: an optical fiber fixing flange for laser devices, characterized in that it includes:

[0008] Flange base;

[0009] Flange mounting plate, fixed to the flange base;

[0010] The flange base has the following characteristics:

[0011] The first through hole, located at the bottom of the flange base, is configured to allow an optical fiber with a protective sleeve to enter;

[0012] The second through hole, located at the top of the flange base, is configured to allow the bare optical fiber to pass through after the protective sleeve has been removed;

[0013] The third through hole is located in the flange body and between the first through hole and the second through hole. The third through hole is connected to the first through hole and the second through hole respectively, and is configured to allow the bare optical fiber of the optical fiber entering through the first through hole to pass through and enter the second through hole.

[0014] The first through hole, the second through hole, and the third through hole are arranged on the same axis.

[0015] Improvedly, in the fiber optic fixing flange for laser devices, the flange base comprises:

[0016] The first base portion has the first through hole and the third through hole formed therein;

[0017] The second base portion has the second through hole formed therein;

[0018] The third base portion connects to the first base portion and the second base portion respectively;

[0019] The flange mounting plate is fixed to the base structure formed by the first base part and the third base part together.

[0020] In a further improvement, in the fiber optic fixing flange for laser devices, the third through hole is a conical chamfer, with the bottom opening of the conical chamfer facing the first through hole and the top opening of the conical chamfer facing the second through hole.

[0021] Improvedly, in the fiber optic fixing flange for laser devices, the axes of the first through hole, the second through hole, and the third through hole, when coaxial, form an angle with the centerline of the flange base, and this angle is acute.

[0022] In a further improvement, in the fiber optic fixing flange for laser devices, the flange mounting plate is fixed at the connection position between the first base portion and the third base portion.

[0023] Improvedly, in the fiber optic fixing flange for laser devices, the flange mounting plate and the flange base are fixed together by injection molding; or, the flange mounting plate and the flange base are injection molded into an integral structure.

[0024] Furthermore, in the fiber optic fixing flange for laser devices, a plurality of injection molding holes are formed on the flange mounting plate.

[0025] Preferably, in the fiber optic fixing flange for laser devices, the flange base is a columnar structure, and the flange mounting plate is a circular plate structure that matches the columnar structure.

[0026] In a further improvement, in the fiber optic fixing flange for laser devices, the flange base is a plastic base, and the flange mounting plate is a stainless steel plate.

[0027] In an improved version, in the fiber optic fixing flange for laser devices, the flange base has a plurality of second through holes and third through holes, with the second through holes and third through holes corresponding one-to-one; wherein each third through hole is connected to a first through hole.

[0028] The technical solution adopted by this utility model to solve the second technical problem is: a laser device, characterized in that it uses any one of the fiber optic fixing flanges for laser devices.

[0029] Compared with existing technologies, the advantages of this invention are as follows: This invention uses a fiber optic fixing flange comprising a flange base and a flange mounting plate fixed to the flange base. The flange base has a first through hole at the bottom, a second through hole at the top, and a third through hole connecting the first and second through holes. The first, second, and third through holes are coaxially aligned. The first through hole is configured to allow an optical fiber with a protective sleeve to enter, the second through hole is configured to allow a bare optical fiber with the protective sleeve removed to pass through, and the third through hole is configured to allow the bare optical fiber entering through the first through hole to pass through the second through hole. Thus, the optical fiber can be stably and reliably fixed to a laser device using this fiber optic fixing flange. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the fiber optic fixing flange used for laser devices in an embodiment of this utility model;

[0032] Figure 2 for Figure 1 A schematic diagram of the bottom structure of the fiber optic fixing flange shown.

[0033] Figure 3 This is a schematic diagram of the flange mounting plate after it has been separated from the flange base in an embodiment of the present utility model.

[0034] Figure 4 for Figure 2 The cross-sectional view of the fiber optic fixing flange shown.

[0035] Figure 5 for Figure 4 Enlarged diagram of part A in the diagram;

[0036] Figure 6 for Figure 4 Enlarged schematic diagram of part B in the diagram. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] To facilitate understanding of the embodiments of this utility model, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0039] This embodiment provides a fiber optic mounting flange for laser devices to reliably secure optical fibers to the laser device. See also Figures 1-6 As shown, the fiber optic fixing flange in this embodiment includes a flange base 1 and a flange mounting plate 2, with the flange mounting plate 2 fixed to the flange base 1. The flange base 1 is a plastic substrate, for example, a PPS (polyphenylene sulfide) plastic injection molded substrate, and the flange mounting plate 2 is a stainless steel plate, for example, 304 stainless steel. The flange base 1 has a first through hole 101 at the bottom of the flange base, a second through hole 102 at the top of the flange base, and a third through hole 103 between the first through hole 101 and the second through hole 102, the third through hole 103 being located within the flange base 1. Furthermore, in this embodiment, the first through hole 101 is configured to allow an optical fiber with a protective sleeve to enter, the second through hole 102 is configured to allow a bare optical fiber after the protective sleeve has been removed to pass through, and the third through hole 103 is configured to allow a bare optical fiber that has entered the flange base through the first through hole 101 to pass through and into the second through hole 102; wherein, see... Figure 4 and Figure 5 As shown, the first through hole 101, the second through hole 102, and the third through hole 103 are arranged coaxially. In this embodiment, the first through hole 101, the second through hole 102, and the third through hole 103 each have a through channel of a certain length. The length of the through channel corresponding to the first through hole 101, the second through hole 102, and the third through hole 103 can be set as needed.

[0040] When using the fiber optic fixing flange of this embodiment to fix the optical fiber to the laser device, the bare optical fiber is inserted into the flange base through the first through hole and then into the second through hole through the third through hole. The optical fiber is bonded to the fiber optic flange with 353ND adhesive. The protective sleeve of the optical fiber is located at the first through hole, so that the optical fiber (with the protective sleeve) inserted into the flange base through the first through hole will not be easily damaged. Then, the flange mounting plate in the fiber optic fixing flange is aligned with the corresponding surface of the laser device base. After aligning the light with an instrument, the fiber optic flange and the laser device base are adjusted to the optimal position. Then, the edge of the flange mounting plate is welded to the laser device base using a laser welding method. In this way, the optical fiber can be stably and reliably fixed to the laser device using the fiber optic fixing flange. Of course, the optical fiber will not be damaged due to being fixed in the flange base.

[0041] Specifically, in this embodiment, see Figure 1 , Figure 3 , Figure 4 and Figure 5 The flange base 1 includes a first base portion 11, a second base portion 12, and a third base portion 13, with the third base portion 13 connecting the first base portion 11 and the second base portion 12. A first through hole 101 and a third through hole 103 are formed on the first base portion 11, while a second through hole 102 is formed on the second base portion 12. The flange mounting plate 2 is fixed to the base structure formed together by the first base portion 11 and the third base portion 13. For example, the flange mounting plate 2 is fixed at the connection point between the first base portion 11 and the third base portion 13.

[0042] In this embodiment, as a preferred structural form for the flange base and flange mounting plate, the flange base 1 is a cylindrical structure, and the flange mounting plate 2 is a circular plate structure that matches the cylindrical structure. Preferably, the flange base and flange mounting plate are arranged coaxially, meaning their centerlines coincide.

[0043] To better guide the optical fiber entering through the first through-hole into the second through-hole, and to facilitate the insertion of the bare optical fiber after removing the protective sleeve, see [reference needed]. Figure 4 and Figure 5 As shown, the third through hole 103 has a conical chamfer, with the bottom opening of the conical chamfer facing the first through hole 101 and the top opening of the conical chamfer facing the second through hole 102.

[0044] To ensure better light transmission of the laser signal emitted by the laser device within the optical fiber fixed by the optical fiber fixing flange, in this embodiment, see [reference needed]. Figure 4 , Figure 5 and Figure 6As shown, the first through hole 101, the second through hole 102, and the third through hole 103 can be arranged in a coaxial state such that the axis L1 is formed with the center line L2 of the flange base 1, and the included angle θ is an acute angle. For example, in this embodiment, the included angle θ is in the range of [0°, 4°].

[0045] Since the laser signal emitted by the laser device is a very thin beam of light, in order to ensure that the fiber optic mounting flange can be efficiently and quickly coupled to the laser base during use, in this embodiment, see [reference needed]. Figure 6 As shown, the axis L1 and the center line L2 can also be made to coincide at the center point O of the end face of the second base part 12. That is, the axis L1 and the center line L2 intersect at this center point to form the aforementioned included angle θ.

[0046] In this embodiment, the flange mounting plate 2 and the flange base 1 are fixed together by injection molding as a method for fixing the flange mounting plate to the flange base 1. Due to the use of precision injection molding, the injection-molded fiber optic fixed flange requires no post-processing. Of course, the flange mounting plate 2 and the flange base 1 can also be injection molded into an integral structure.

[0047] For ease of clamping during use of the fiber optic flange, in this embodiment, see [reference needed]. Figures 1-3 As shown, a small plane 1a is also cut on the circumference of the flange base 1, so as to use the small plane 1a as the directional reference during installation.

[0048] In addition, in this embodiment, the first base portion 11, the second base portion 12, and the third base portion 13 can be designed into different shapes as needed.

[0049] To enhance the stability of the flange mounting plate fixed to the flange base via injection molding, see [link / reference]. Figure 3 As shown, in this embodiment, the flange mounting plate 2 has multiple injection holes 20, allowing the molten liquid during the injection process to solidify into solidified columns 3 through each injection hole and firmly solidify onto the flange base, thereby enhancing the fixing effect between the flange mounting plate and the flange base. Thus, the multiple injection holes 20 of the flange mounting plate ensure that the flange base and the flange mounting plate are tightly and firmly bonded as a whole, preventing loosening that would reduce reliability due to environmental influences such as temperature changes or mechanical vibration. The injection holes are preferably circular. Of course, these multiple injection holes are preferably evenly arranged along the circumferential edge of the flange mounting plate 2.

[0050] To meet the practical need of fixing multiple optical fibers to a laser device at once, in this embodiment, see [reference needed]. Figures 1-3As shown, the flange base 1 has multiple second through holes 102 and third through holes 103, with each second through hole 102 and third through hole 103 corresponding to the previous one; each third through hole 103 is connected to a first through hole 101. In this way, each optical fiber to be fixed can be inserted through its corresponding first through hole, guided through the third through hole, and then inserted into the second through hole. This meets the needs of multi-hole optical fiber applications.

[0051] In addition, in this embodiment, by making the first through hole 101, the second through hole 102 and the third through hole 103 coaxial, it is convenient to perform one-time injection molding of the flange mounting plate and the flange base, which facilitates the installation of optical fibers and greatly improves production efficiency and yield.

[0052] It should be noted that the flange base and flange mounting plate in this embodiment are not limited to the materials listed in this embodiment. Those skilled in the art can select other feasible materials according to actual needs.

[0053] Furthermore, this embodiment also provides a laser device. This laser device utilizes the fiber optic fixing flange described in this embodiment. For example, the laser device can be any of a gas laser, solid-state laser, semiconductor laser, dye laser, and free-electron laser, depending on the requirements. Of course, a semiconductor laser is preferred here.

[0054] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fiber fixing flange for a laser device, characterized by, include: Flange base (1); Flange mounting plate (2) is fixed on flange base (1); Among them, the flange base (1) has: The first through hole (101), located at the bottom of the flange base (1), is configured to allow an optical fiber with a protective sleeve to enter; The second through hole (102), located at the top of the flange base (1), is configured to allow the bare optical fiber to pass through after the protective sleeve has been removed; The third through hole (103) is located inside the flange base (1) and between the first through hole (101) and the second through hole (102). The third through hole (103) communicates with the first through hole (101) and the second through hole (102) respectively, and is configured to allow the bare optical fiber of the optical fiber entering through the first through hole (101) to pass through and enter the second through hole (102). The first through hole (101), the second through hole (102), and the third through hole (103) are arranged on the same axis.

2. The optical fiber fixing flange for a laser device according to claim 1, characterized by, The flange base (1) includes: The first base portion (11) has a first through hole (101) and a third through hole (103); The second base portion (12) has the second through hole (102) formed thereon; The third base part (13) is connected to the first base part (11) and the second base part (12); The flange mounting plate (2) is fixed to the base structure formed by the first base part (11) and the third base part (13).

3. The optical fiber fixing flange for a laser device according to claim 1, characterized by, The third through hole (103) has a conical chamfer, with the bottom opening of the conical chamfer facing the first through hole (101) and the top opening of the conical chamfer facing the second through hole (102).

4. The optical fiber fixing flange for a laser device according to claim 1, characterized by, The first through hole (101), the second through hole (102) and the third through hole (103) in the coaxial configuration form an angle (θ) with the center line (L2) of the flange base (1), and the angle (θ) is an acute angle.

5. The optical fiber fixing flange for a laser device according to claim 2, characterized by, The flange mounting plate (2) is fixed at the connection position between the first base part (11) and the third base part (13).

6. The optical fiber fixing flange for a laser device according to any one of claims 1 to 5, characterized in that, The flange mounting plate (2) and the flange base (1) are fixed together by injection molding; or, the flange mounting plate (2) and the flange base (1) are injection molded into an integral structure by injection molding.

7. The optical fiber fixing flange for a laser device according to claim 6, characterized by, The flange mounting plate (2) has multiple injection holes (20).

8. The optical fiber fixing flange for a laser device according to claim 6, wherein The flange base (1) is a columnar structure, and the flange mounting plate (2) is a circular plate structure that matches the columnar structure; Alternatively / and, in the fiber optic fixing flange for laser devices, the flange base (1) is a plastic base and the flange mounting plate (2) is a stainless steel plate.

9. The optical fiber fixing flange for a laser device according to any one of claims 1 to 5, characterized by, The flange base (1) has a plurality of second through holes (102) and third through holes (103), with the second through holes (102) and the third through holes (103) being provided in a one-to-one correspondence; wherein each third through hole (103) is connected to the first through hole (101).

10. A laser device, characterized by The application includes the fiber optic fixing flange for laser devices as described in any one of claims 1 to 9.

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