Beamline mechanism for a single-frequency fiber laser

Abstract

This utility model discloses a beamforming mechanism for a single-frequency fiber laser, including a fiber laser body, an interface on the side wall of the fiber laser body, and an optical cable connected to the interface. A support plate is detachably mounted on the top of the fiber laser body, and multiple circumferentially distributed positioning pins are fixedly connected to the top of the support plate. The optical cable is wound around the positioning pins, and a clamping component for limiting the optical cable is provided above the support plate. In this utility model, excess optical cable is wound around the outside of the positioning pins, and then the clamping component limits and clamps the optical cable. An elastic locking component then locks the clamping component, ultimately achieving beamforming of the optical cable. This prevents excessive bending of the optical cable due to haphazard winding, folding, or external pressure; it also solves the problem of joints loosening due to frequent shaking caused by external vibration and tension.

Description

Technical Field

[0001] This utility model relates to the field of fiber laser technology, specifically to a beamforming mechanism for a single-frequency fiber laser. Background Technology

[0002] A single-frequency laser, also known as a single-longitudinal-mode laser, is characterized by outputting a laser mode that satisfies both a single transverse mode and a single longitudinal mode. In addition to the excellent monochromaticity and directionality of the laser itself, single-frequency lasers possess characteristics that are difficult for ordinary lasers to achieve, such as long coherence length and narrow spectral linewidth. With its high frequency purity, excellent coherence, and compact structure, it is widely used in precision measurement, optical communication, and other fields.

[0003] During the use of a single-frequency fiber laser, if the optical cable is long and not properly bundled, it may cause a series of problems affecting the performance, stability, and safety of the equipment. For example, if the fiber is excessively bent due to random winding, folding, or external pressure (especially if the radius of curvature is less than the critical value, such as the requirement of 20mm for single-mode fiber), bending will cause radiation loss of the optical signal, resulting in a decrease in output power. At the same time, bending stress may change the refractive index distribution of the fiber, introduce mode coupling, and destroy the stability of the single-frequency laser. Secondly, the unbundled optical cable is susceptible to external vibration and tension, and the joints may loosen due to frequent shaking. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a beamforming mechanism for a single-frequency fiber laser, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a beamforming mechanism for a single-frequency fiber laser, comprising a fiber laser body, an interface on the side wall of the fiber laser body, and an optical cable connected to the interface. A support plate is detachably mounted on the top of the fiber laser body, and a plurality of circumferentially distributed positioning pins are fixedly connected to the top of the support plate. The optical cable is wound around the plurality of positioning pins. A clamping member for limiting the optical cable is provided above the support plate, and an elastic locking member for locking the clamping member is also provided on the support plate.

[0008] Preferably, the clamping member includes a cross-shaped support strip and a plurality of U-shaped limiting strips fixed to the end of the cross-shaped support strip. A U-shaped limiting groove is formed inside the U-shaped limiting strip. The positioning pin passes through the U-shaped limiting groove and contacts the inner wall of the end of the U-shaped limiting groove. An insertion port is also provided in the middle of the cross-shaped support strip.

[0009] Preferably, the cross-shaped support bar also has a positioning hole in the middle, and the bottom of the positioning hole is a closed structure and the top is an open structure.

[0010] Preferably, the elastic locking component includes a positioning rod fixed to the top of the support plate and a rotating rod rotatably disposed on the top of the positioning rod. The rotating rod and the positioning rod are arranged coaxially. A limiting port is opened inside the rotating rod. The limiting port is arranged through the rotating rod perpendicular to the axis of the rotating rod. A vertically movable sliding strip is slidably disposed inside the limiting port. A spring is fixedly connected between the top of the sliding strip and the inner top wall of the limiting port. A symmetrically distributed clamping rod is fixedly connected to the bottom side of the sliding strip. When the optical cable is bound, the clamping rod is inserted into the positioning hole.

[0011] Preferably, the circumferential sidewall of the support plate is fixedly connected with two symmetrically distributed L-shaped clips, which are fixed to the fiber laser body by bolts.

[0012] Preferably, the number of positioning pins is the same as the number of U-shaped limiting strips, and the number of positioning pins is at least 4.

[0013] (III) Beneficial Effects

[0014] This invention provides a beamforming mechanism for a single-frequency fiber laser, which has the following advantages:

[0015] In this invention, excess optical cable is wound around the outside of multiple positioning pins, and then a clamping component is used to limit and clamp the optical cable. Next, an elastic locking component is used to lock the clamping component, thus achieving the cable bundling operation. This prevents the optical cable from becoming excessively bent due to random winding, folding, or external pressure. It also solves the problem that external vibration and stretching may cause the connector to loosen due to frequent shaking. Attached Figure Description

[0016] Figure 1 This is a front-view three-dimensional structural diagram of the beam-connecting mechanism of a single-frequency fiber laser proposed in this utility model;

[0017] Figure 2 This is a rear-view three-dimensional structural diagram of the beam-connecting mechanism of a single-frequency fiber laser proposed in this utility model.

[0018] Figure 3 This is a structural diagram of the clamping component of the beam-connecting mechanism of a single-frequency fiber laser proposed in this utility model;

[0019] Figure 4 This invention provides a structural diagram of an elastic locking component for the beam-laying mechanism of a single-frequency fiber laser.

[0020] Figure 5 for Figure 4Cross-sectional structural diagram;

[0021] Figure 6 for Figure 1 Enlarged structural diagram at point A.

[0022] In the diagram: 1. Fiber laser body; 101. Interface; 2. Support plate; 3. L-shaped retaining strip; 4. Bolt; 5. Positioning pin; 6. Clamping component; 61. Cross-shaped support strip; 611. Insert; 612. Positioning hole; 62. U-shaped limiting strip; 621. U-shaped limiting groove; 7. Elastic locking component; 71. Positioning rod; 72. Rotating rod; 721. Limiting port; 73. Sliding strip; 74. Spring; 75. Clamping rod; 8. Optical cable. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1 , Figure 2 and Figure 6 This utility model provides a technical solution: a beamforming mechanism for a single-frequency fiber laser, including a fiber laser body 1, an interface 101 opened on the side wall of the fiber laser body 1, and an optical cable 8 connected to the interface 101. A support plate 2 is detachably installed on the top of the fiber laser body 1. A plurality of circumferentially distributed positioning pins 5 are fixedly connected to the top of the support plate 2. The optical cable 8 is wound around the plurality of positioning pins 5. A clamping member 6 for limiting the optical cable 8 is provided above the support plate 2. An elastic locking member 7 for locking the clamping member 6 is also provided on the support plate 2.

[0025] The excess portion of the optical cable 8 is wrapped around the outside of multiple positioning pins 5, at which point the optical cable 8 is roughly circumferentially formed. Then, the clamping member 6 is used to limit and clamp the optical cable 8. Next, the clamping member 6 is locked by the elastic locking member 7, thus realizing the bundled operation of the optical cable 8. This prevents the optical cable 8 from being excessively bent due to random wrapping, folding, or external pressure. It also solves the problem that external vibration and tension may cause the joint to loosen due to frequent shaking.

[0026] The structure and fitting process of the clamping component 6 and the elastic locking component 7 are described in detail below.

[0027] Please see Figure 3The clamping component 6 includes a cross-shaped support bar 61 and a plurality of U-shaped limiting bars 62 fixed to the end of the cross-shaped support bar 61. A U-shaped limiting groove 621 is formed inside the U-shaped limiting bar 62. The positioning pin 5 passes through the U-shaped limiting groove 621 and contacts the inner wall of the end of the U-shaped limiting groove 621. An insertion port 611 is also provided in the middle of the cross-shaped support bar 61.

[0028] After the optical cable 8 is wound around the multiple positioning pins 5, the U-shaped limiting strip 62 is pressed onto the optical cable 8. At this time, the positioning pins 5 pass through the U-shaped limiting groove 621 to achieve the positioning purpose, prevent the pressing part 6 from deflecting, and improve the stability of the pressing.

[0029] Please see Figure 1 and Figure 3 The number of positioning pins 5 is the same as the number of U-shaped limit strips 62, and the number of positioning pins 5 is at least 4.

[0030] The same quantity ensures that the optical cable 8 near each positioning pin 5 can be compressed, thereby ensuring uniformity and stability and preventing the optical cable 8 from loosening.

[0031] The number of positioning pins 5 is at least 4, which ensures that the optical cable 8 is as round as possible when it is wound and stored, and controls the bending radius of any position within a safe range to avoid excessive bending. This bending standard has been proposed in the background art and will not be repeated here.

[0032] See Figure 4 and Figure 5 The elastic locking component 7 includes a positioning rod 71 fixed to the top of the support plate 2 and a rotating rod 72 rotatably disposed on the top of the positioning rod 71. The rotating rod 72 and the positioning rod 71 are arranged on the same axis. A limiting port 721 is opened inside the rotating rod 72. The limiting port 721 is arranged through the axis perpendicular to the rotating rod 72. A vertically movable sliding strip 73 is slidably disposed inside the limiting port 721. A spring 74 is fixedly connected between the top of the sliding strip 73 and the inner top wall of the limiting port 721. A symmetrically distributed clamping rod 75 is fixedly connected to the bottom side of the sliding strip 73. When the optical cable 8 is bound, the clamping rod 75 is inserted into the positioning hole 612.

[0033] The following describes the clamping process of the optical cable 8. The U-shaped limiting strip 62 is clamped onto the optical cable 8. At this time, the positioning pin 5 passes through the U-shaped limiting groove 621. The positioning rod 71, rotating rod 72, sliding strip 73, and clamping rod 75 all pass through the socket 611. Then, the sliding strip 73 is pulled upward, causing the clamping rod 75 to move out of the socket 611. Next, the rotating rod 72 is rotated to align the clamping rod 75 with the positioning hole 612. The sliding strip 73 is released, and the spring 74 releases its elasticity, pushing the sliding strip 73 and clamping rod 75 downward, so that the lower end of the clamping rod 75 enters the positioning hole 612, achieving the locking purpose. At this time, the clamping component 6 as a whole achieves stable cable bundling for the optical cable 8.

[0034] Please see Figure 3 The cross-shaped support bar 61 also has a positioning hole 612 in the middle. The bottom of the positioning hole 612 is a closed structure and the top is an open structure.

[0035] The above structure ensures that when the clamping rod 75 enters the positioning hole 612, it can provide a pressing contact surface, which can press and clamp the cross-shaped support bar 61, thereby realizing the wire harness operation.

[0036] Please see Figure 1 The circumferential sidewall of the support plate 2 is fixedly connected with two symmetrically distributed L-shaped clips 3, which are fixed to the fiber laser body 1 by bolts 4.

[0037] The threaded end of the bolt 4 abuts against the side wall of the fiber laser body 1, thus achieving the installation of the L-shaped clamp 3 and the support plate 2 through the bolt 4; when the bolt 4 is loosened, the support plate 2 and the L-shaped clamp 3 can be removed from the fiber laser body 1.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A beamforming mechanism for a single-frequency fiber laser, characterized in that: The device includes a fiber laser housing (1), an interface (101) on the side wall of the fiber laser housing (1), and an optical cable (8) connected to the interface (101). A support plate (2) is detachably installed on the top of the fiber laser housing (1). A plurality of circumferentially distributed positioning pins (5) are fixedly connected to the top of the support plate (2). The optical cable (8) is wound around the plurality of positioning pins (5). A clamping member (6) for limiting the optical cable (8) is provided above the support plate (2). An elastic locking member (7) for locking the clamping member (6) is also provided on the support plate (2).

2. The beamforming mechanism of a single-frequency fiber laser according to claim 1, characterized in that: The clamping member (6) includes a cross-shaped support bar (61) and a plurality of U-shaped limiting bars (62) fixed to the end of the cross-shaped support bar (61). A U-shaped limiting groove (621) is formed inside the U-shaped limiting bar (62). The positioning pin (5) passes through the U-shaped limiting groove (621) and contacts the inner wall of the end of the U-shaped limiting groove (621). An insertion port (611) is also provided in the middle of the cross-shaped support bar (61).

3. The beamforming mechanism of a single-frequency fiber laser according to claim 2, characterized in that: The cross-shaped support bar (61) also has a positioning hole (612) in the middle, and the bottom of the positioning hole (612) is a closed structure and the top is an open structure.

4. The beamforming mechanism of a single-frequency fiber laser according to claim 1, characterized in that: The elastic locking component (7) includes a positioning rod (71) fixed to the top of the support plate (2) and a rotating rod (72) rotatably disposed on the top of the positioning rod (71). The rotating rod (72) and the positioning rod (71) are coaxially arranged. A limiting port (721) is opened inside the rotating rod (72). The limiting port (721) is arranged through the axis of the rotating rod (72) perpendicular to the axis of the rotating rod (72). A vertically movable sliding strip (73) is slidably disposed inside the limiting port (721). A spring (74) is fixedly connected between the top of the sliding strip (73) and the inner top wall of the limiting port (721). A symmetrically distributed clamping rod (75) is fixedly connected to the bottom side of the sliding strip (73). When the optical cable (8) is bound, the clamping rod (75) is inserted into the positioning hole (612).

5. The beamforming mechanism of a single-frequency fiber laser according to claim 1, characterized in that: The circumferential sidewall of the support plate (2) is fixedly connected with two symmetrically distributed L-shaped clips (3), which are fixed to the fiber laser body (1) by bolts.

6. The beamforming mechanism of a single-frequency fiber laser according to claim 1, characterized in that: The number of positioning pins (5) is the same as the number of U-shaped limiting strips (62), and the number of positioning pins (5) is at least 4.

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