Narrow linewidth laser with light path correction mechanism

Abstract

The invention discloses a narrow-linewidth laser with a light path correction mechanism, and belongs to the technical field of narrow-linewidth lasers, a pull rod is held and lifted, a connecting plate drives a plurality of latches to be separated from limiting grooves in a frame body, the pull rod is pushed to drive a fixing frame to transversely and horizontally move, a sliding frame drives a lens to horizontally move in the frame body, and the light path correction mechanism is used for correcting the light path of the lens. Secondly, a pull rod is loosened, a connecting plate is supported through the elastic force of a third spring, clamping teeth are clamped into a limiting groove, the position of a fixed frame is locked, the horizontal correction work of the optical axis is completed at the moment, and when the correction work of the longitudinal vertical position of the optical axis is completed, a sliding frame drives a lens to move up and down in a frame body in a similar way; due to the fact that the angle of the optical axis penetrating through the lenses is changed, and the two lenses are pushed to move in the horizontal direction and the vertical direction, the movement direction of the optical axis after penetrating through the lenses can be conveniently adjusted, the path of the optical axis can be conveniently and effectively corrected, and the use precision of the narrow-linewidth laser is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of narrow linewidth lasers, and in particular relates to a narrow linewidth laser with an optical path correction mechanism. Background Art

[0002] A narrow linewidth laser is a single-frequency laser with a narrow light emission spectrum. The working principle of a narrow linewidth laser is mainly based on the laser resonant cavity theory. By precisely controlling the length of the resonant cavity, single-frequency output of the laser can be achieved, thereby obtaining a narrow linewidth spectrum. Narrow linewidth lasers are very sensitive to environmental factors such as temperature and vibration. During use, they are easily affected by external factors on the laser optical path, causing the optical axis to have path deviations during use. Even if the position of the laser head is adjusted, it is difficult to effectively correct the optical axis, which in turn affects the use accuracy of the narrow linewidth laser. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides a narrow-linewidth laser with an optical path correction mechanism, which solves the problem that the narrow-linewidth laser is easily affected by external factors on the laser optical path during use, causing the optical axis to have path deviation during use. Even if the position of the laser head is adjusted, it is difficult to effectively correct the optical axis, thereby affecting the use accuracy of the narrow-linewidth laser.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a narrow linewidth laser with an optical path correction mechanism, comprising a laser body, a base is provided above the laser body, a laser head is installed on one side of the base, a limit assembly is connected to the outer shell of the laser head, one side of the limit assembly overlaps with the base, two sides of the base are respectively provided with slide grooves, one side of the inner wall of the slide groove is provided with a groove, a locking assembly is installed in the slide groove, the locking assembly passes through the slide groove and is clamped in the limit assembly, and the four corners of one side of the base are respectively fixed with limit The laser head is located between four limit columns, support components are installed on one side of the limit component corresponding to the position of the limit column, the end of the limit column is inserted in the support component, a frame is fixed on the side of the limit component away from the base, a convex head is installed on the side of the frame away from the limit component, two sliding frames are installed through the frame, a lens is installed in the middle of the sliding frame, a correction component is fixedly connected to the sliding frame, a number of limit grooves are opened on the outer wall of the frame corresponding to the positions of the two correction components, and the correction component is snapped into the limit grooves.

[0005] As a further solution of the present invention: a support seat is provided on the top of the laser body, the base is clamped in a guide groove provided on the support seat, a heat dissipation box is provided on one side of the laser body, and an exhaust fan is installed in the heat dissipation box.

[0006] As a further solution of the present invention: the limiting assembly includes a fixing frame, the fixing frame is plugged into one side of the base, and slots are respectively provided on both sides of the inner wall of the fixing frame, the locking assembly is clamped in the slots, a heat-conducting tube is fixed on the side of the fixing frame away from the base, the laser head is arranged in the heat-conducting tube, a plurality of heat sinks are installed on the outer wall of the heat-conducting tube, and the supporting assembly is fixed on one side of the heat-conducting tube, and an end of the laser head passes through the heat-conducting tube and is located inside the frame.

[0007] As a further solution of the present invention: the locking assembly includes a slide plate, which is slidably connected in a slide groove, a clamping strip is fixed on one side of the slide plate, and the clamping strip is clamped in the clamping slot, one side of the clamping strip is designed as an arc surface, and the other side of the clamping strip is designed as a flat surface, and two L-shaped blocks are fixed on the side of the slide plate away from the clamping strip.

[0008] As a further solution of the present invention: a first spring is fixedly connected between the L-shaped block and the slide groove, the L-shaped block slides through the groove, and a pressing plate is fixedly connected to one side of the two L-shaped blocks.

[0009] As a further solution of the present invention: the support assembly includes a fixed sleeve, the fixed sleeve is fixed on one side of the fixed frame, a push block is slidably connected inside the fixed sleeve, a second spring is fixedly connected between the push block and the inner wall of the fixed sleeve, and the push block is overlapped on the end of the limit column.

[0010] As a further solution of the present invention: the correction assembly includes a fixing frame, which is U-shaped and has a pull rod sliding through it. The end of the pull rod is fixedly connected to a connecting plate. A plurality of latch teeth are installed on the side of the connecting plate away from the pull rod, and the latch teeth are latched in the limiting groove.

[0011] As a further solution of the present invention: the pull rod is U-shaped and has two ends sleeved with third springs, the two ends of the third spring are respectively fixed to the opposite surfaces of the connecting plate and the fixing frame, and the two fixing frames are respectively arranged on the frame longitudinally and transversely.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the present invention, the laser head emits laser light through the operation of the laser body, and the optical axis passes through the two lenses and is emitted from the convex head. When correcting the optical axis emitted by the laser head, the lens close to the laser head side is first adjusted, and the pull rod is held and lifted up to drive the connecting plate to move up, and the connecting plate drives a plurality of latching teeth to disengage from the limiting grooves on the frame, so that the fixed frame is in a free movable state, and the pull rod is pushed to drive the fixed frame to move horizontally, and the fixed frame drives the sliding frame to slide in the frame, and the sliding frame drives the lens to move horizontally in the frame. After completing the adjustment of the lens, the pull rod is released, and the connecting plate is supported by the elastic force of the third spring, so that the connecting plate drives the latching teeth to be clamped into the limiting grooves on the frame, so as to achieve the position of locking the fixed frame, thereby completing the adjustment of the lens. The adjustment work of the paired lenses is to complete the horizontal correction of the optical axis. When correcting the longitudinal vertical position of the optical axis, pull the pull rod close to the side of the convex head. Similarly, the pull rod can drive the latch tooth to disengage from the limit groove on the side of the frame through the connecting plate. The holding pull rod drives the sliding frame to move vertically through the fixed frame, so that the sliding frame drives the lens to move up and down inside the frame. After releasing the handle, the latch tooth on the connecting plate is engaged with the limit groove by the force of the second spring to complete the correction of the vertical position of the optical axis. Because the angle of the optical axis passing through the lens changes, and by pushing the two lenses to move in the horizontal and vertical directions, it is convenient to adjust the movement direction of the optical axis after passing through the lens, and then it is convenient to effectively correct the path of the optical axis to ensure the use accuracy of the narrow linewidth laser.

[0014] 2. In the present invention, by squeezing the two pressing plates, the two pressing plates respectively drive the two L-shaped blocks to approach each other, and the L-shaped blocks pull the sliding plate to move in the sliding groove, and the sliding plate drives the card strip to disengage from the card groove on the inner wall of the fixed frame, that is, the locking state between the fixed frame and the base is released. At this time, the limit column on one side of the base can slide in the fixed frame, and the push block is supported by the elastic force of the second spring, so that a force is generated between the push block and the limit column, and the fixed frame is bounced open so that it can be separated from the base. After the fixed frame is pulled out, the laser head can be separated from the frame body and the fixed frame, thereby facilitating the separation of the laser head and the limit column. When assembling the components, the fixing frame and the heat-conducting tube are sleeved on the outside of the laser head, and the limiting columns on the base can extend into the fixing sleeve. When the fixing frame contacts the card strips on both sides of the base, because one side of the card strip is designed with an arc surface, the fixing frame can push the two card strips away from each other. When the fixing frame is sleeved on the base, the elastic force of the first spring supports the L-shaped block, so that the L-shaped block drives the card strip to be inserted into the card slot through the slide plate, thereby achieving the purpose of locking the fixing frame and the base, so that the laser head is located in the fixing frame and the frame body, which protects the laser head while improving the working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the laser body of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the base and the limiting assembly being separated according to the present invention;

[0018] Figure 4 It is a structural schematic diagram of a partial cross section of the base of the present invention;

[0019] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0020] Figure 6 It is a structural schematic diagram of the locking assembly of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the cross section of the limit assembly and the frame of the present invention;

[0022] Figure 8 It is a schematic diagram of the structure of the correction component of the present invention;

[0023] Fig. 9 It is a structural schematic diagram of the support assembly of the present invention;

[0024] In the figure: 1. laser body; 2. base; 3. laser head; 4. limiting assembly; 401. fixing frame; 402. slot; 403. heat conducting tube; 404. heat sink; 5. slide groove; 6. groove; 7. locking assembly; 701. slide plate; 702. clamping strip; 703. L-shaped block; 704. pressing plate; 705. first spring; 8. limiting column; 9. supporting assembly; 901. fixing sleeve; 902. push block; 903. second spring; 10. frame; 11. protrusion; 12. correction assembly; 121. fixing frame; 122. pull rod; 123. connecting plate; 124. clamping tooth; 125. third spring; 13. limiting groove; 14. slide frame; 15. lens; 16. supporting seat; 17. heat dissipation box; 18. exhaust fan. DETAILED DESCRIPTION

[0025] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0026] like Figure 1-9As shown, the present invention provides a technical solution: a narrow linewidth laser with an optical path correction mechanism, comprising a laser body 1, a base 2 is provided above the laser body 1, a laser head 3 is installed on one side of the base 2, a support seat 16 is provided on the top of the laser body 1, the base 2 is clamped in a guide groove provided on the support seat 16, a heat dissipation box 17 is provided on one side of the laser body 1, an exhaust fan 18 is installed in the heat dissipation box 17, the guide groove on the support seat 16 can limit the base 2, improve the stability of the base 2, and the exhaust fan 18 can quickly discharge the internal heat of the laser body 1 to improve the heat dissipation effect;

[0027] The outer shell of the laser head 3 is connected with a limiting component 4, one side of the limiting component 4 overlaps with the base 2, and the limiting component 4 includes a fixed frame 401, which is plugged into one side of the base 2. Both sides of the inner wall of the fixed frame 401 are respectively provided with card slots 402, and the locking component 7 is carded in the card slots 402. A heat-conducting tube 403 is fixed to the side of the fixed frame 401 away from the base 2, and the laser head 3 is arranged in the heat-conducting tube 403. A plurality of heat sinks 404 are installed on the outer wall of the heat-conducting tube 403, and the supporting component 9 is fixed on one side of the heat-conducting tube 403. The end of the laser head 3 passes through the heat-conducting tube 403 and is located inside the frame 10. Because the outer wall of the laser head 3 is in contact with the inside of the heat-conducting tube 403, the heat generated by the laser head 3 can be transferred to the heat-conducting tube 403, and the heat sink 404 added to the outside of the heat-conducting tube 403 can expand the heat dissipation area, thereby improving the heat dissipation effect and improving the working stability of the laser head 3.

[0028] Slide grooves 5 are respectively provided on both sides of the base 2, and a groove 6 is provided on one side of the inner wall of the slide groove 5. A locking component 7 is installed in the slide groove 5, and the locking component 7 passes through the slide groove 5 and is clamped in the limit component 4. The locking component 7 includes a slide plate 701, and the slide plate 701 is slidably connected in the slide groove 5. A clamping strip 702 is fixed on one side of the slide plate 701, and the clamping strip 702 is clamped in the clamping groove 402. One side of the clamping strip 702 is designed as an arc surface, and the other side of the clamping strip 702 is designed as a plane. Two L-shaped blocks 703 are fixed on one side of the slide plate 701 away from the clamping strip 702, which squeeze the two pressing plates 704 so that the two pressing plates 704 respectively drive the two L-shaped blocks 703 to move closer to each other, and the L-shaped blocks 703 pull the slide plate 701 to move in the slide groove 5, and the slide plate 701 drives the clamping strip 702 to separate from the clamping groove 402 on the inner wall of the fixed frame 401, that is, the locking state between the fixed frame 401 and the base 2 is released, so that the laser head 3 can be easily taken out of the fixed frame 401;

[0029] A first spring 705 is fixedly connected between the L-shaped block 703 and the slide groove 5. The L-shaped block 703 slides through the groove 6. A pressing plate 704 is fixedly connected to one side of the two L-shaped blocks 703. The L-shaped block 703 is supported by the elastic force of the first spring 705, so that the L-shaped block 703 drives the card strip 702 to be inserted into the card groove 402 through the slide plate 701, which is convenient for locking the fixed frame 401 and the base 2, so that the laser head 3 is located in the fixed frame 401 and the frame body 10, thereby protecting the laser head 3.

[0030] Limiting columns 8 are fixed at the four corners of one side of the base 2, and the laser head 3 is located between the four limiting columns 8. Support components 9 are installed at the positions of the limiting columns 8 on one side of the limiting component 4, and the ends of the limiting columns 8 are inserted into the supporting component 9. The supporting component 9 includes a fixing sleeve 901, which is fixed to one side of the fixing frame 401. A push block 902 is slidably connected in the fixing sleeve 901, and a second spring 903 is fixedly connected between the push block 902 and the inner wall of the fixing sleeve 901. The push block 902 is overlapped on the end of the limiting column 8, and the limiting column 8 can slide in the fixing frame 401. The push block 902 is supported by the elastic force of the second spring 903, so that a force is generated between the push block 902 and the limiting column 8, and the fixing frame 401 is bounced open so that it can be separated from the base 2. After the fixing frame 401 is pulled out, the laser head 3 can be separated from the frame body 10 and the fixing frame 401, thereby facilitating the separation of the laser head 3 and the fixing frame 401.

[0031] A frame 10 is fixed to the side of the limit component 4 away from the base 2, a convex head 11 is installed on the side of the frame 10 away from the limit component 4, two sliding frames 14 are installed in the frame 10, a lens 15 is installed in the middle of the sliding frame 14, a correction component 12 is fixedly connected to the sliding frame 14, a plurality of limit grooves 13 are opened on the outer wall of the frame 10 corresponding to the positions of the two correction components 12, the correction component 12 is clamped in the limit grooves 13, the correction component 12 includes a fixing frame 121, the fixing frame 121 is U-shaped, and a pull rod 12 is slidably passed through the fixing frame 121 2. The end of the pull rod 122 is fixedly connected with a connecting plate 123. A plurality of latching teeth 124 are installed on the side of the connecting plate 123 away from the pull rod 122. The latching teeth 124 are latched in the limiting groove 13. The pull rod 122 is held and lifted up, so that the pull rod 122 drives the connecting plate 123 to move upward, and the connecting plate 123 drives the plurality of latching teeth 124 to disengage from the limiting groove 13 on the frame 10, so that the fixing frame 121 is in a free movable state. The pull rod 122 is pushed to drive the fixing frame 121 to move, so as to facilitate the horizontal adjustment of the sliding frame 14 in the fixing frame 121.

[0032] The pull rod 122 is U-shaped and has two ends sleeved with a third spring 125. The two ends of the third spring 125 are respectively fixed on the opposite surfaces of the connecting plate 123 and the fixing frame 121. The two fixing frames 121 are respectively arranged on the frame 10 longitudinally and transversely. The connecting plate 123 is supported by the elastic force of the third spring 125, so that the connecting plate 123 drives the latch 124 to be inserted into the limiting groove 13 on the frame 10, which is convenient for locking the fixing frame 121 and improving the stability of the lens 15 in the sliding frame 14.

[0033] The working principle of the present invention is:

[0034] When the narrow line width laser is working, the laser body 1 works to make the laser head 3 emit laser light, and the optical axis will pass through the two lenses 15 and emit from the convex head 11. When correcting the optical axis emitted by the laser head 3, first adjust the lens 15 close to the laser head 3, hold the pull rod 122 and lift it up, so that the pull rod 122 drives the multiple teeth 124 to disengage from the limit groove 13 through the connecting plate 123, push the pull rod 122 to drive the fixing frame 121 to move horizontally, and the fixing frame The slide frame 121 drives the slide frame 14 to slide in the frame body 10, and the slide frame 14 drives the lens 15 to move horizontally in the frame body 10. After the adjustment of the lens 15 is completed, the pull rod 122 is released, and the elastic force of the third spring 125 supports the connecting plate 123, so that the connecting plate 123 drives the latching teeth 124 to snap into the limiting groove 13 on the frame body 10, so as to achieve the position of locking the fixing frame 121, thereby completing the adjustment of the lens 15, and at this time, the horizontal correction of the optical axis is completed;

[0035] When correcting the longitudinal vertical position of the optical axis, pull the pull rod 122 near the side of the protruding head 11. Similarly, the pull rod 122 can drive the latching tooth 124 to disengage from the limiting groove 13 on the side of the frame 10 through the connecting plate 123. Hold the pull rod 122 to drive the sliding frame 14 to move vertically through the fixing frame 121, so that the sliding frame 14 drives the lens 15 to move up and down inside the frame 10. After releasing the handle, the latching tooth 124 on the connecting plate 123 is clamped into the limiting groove 13 by the force of the second spring 903, and the correction of the vertical position of the optical axis is completed. Because the angle of the optical axis passing through the lens 15 is changed, and by pushing the two lenses 15 to move in the horizontal direction and the vertical direction, the movement direction of the optical axis after passing through the lens 15 can be adjusted;

[0036] When separating the laser head 3 and the limiting assembly 4, the two pressing plates 704 are squeezed so that the two pressing plates 704 respectively drive the two L-shaped blocks 703 to approach each other, and the L-shaped blocks 703 pull the slide plate 701 to move in the slide groove 5, and the slide plate 701 drives the card strip 702 to disengage from the card groove 402 on the inner wall of the fixed frame 401, that is, the locking state between the fixed frame 401 and the base 2 is released. At this time, the limiting column 8 on one side of the base 2 can slide in the fixed frame 401, and the push block 902 is supported by the elastic force of the second spring 903, so that a force is generated between the push block 902 and the limiting column 8, and the fixed frame 401 is bounced open so that it can be separated from the base 2, and the fixed frame 401 is pulled out to allow the laser head 3 to be separated from the frame body 10 and the fixed frame 401;

[0037] When assembling the fixed frame 401 and the base 2, the fixed frame 401 and the heat-conducting tube 403 are sleeved on the outside of the laser head 3, and the limiting column 8 on the base 2 can extend into the fixed sleeve 901. When the fixed frame 401 contacts the clamping strips 702 on both sides of the base 2, because one side of the clamping strip 702 is designed as an arc surface, the fixed frame 401 can push the two clamping strips 702 away from each other. When the fixed frame 401 is sleeved on the base 2, the elastic force of the first spring 705 supports the L-shaped block 703, so that the L-shaped block 703 drives the clamping strip 702 to be clamped into the clamping slot 402 through the slide plate 701, thereby achieving the purpose of locking the fixed frame 401 and the base 2, so that the laser head 3 is located in the fixed frame 401 and the frame body 10.

[0038] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like 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 referred device or element 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.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A narrow linewidth laser with an optical path correction mechanism, comprising a laser body (1), characterized in that: A base (2) is provided above the laser body (1), a laser head (3) is installed on one side of the base (2), a limiting assembly (4) is connected to the outer shell of the laser head (3), one side of the limiting assembly (4) overlaps with the base (2), two sides of the base (2) are respectively provided with slide grooves (5), one side of the inner wall of the slide groove (5) is provided with a groove (6), a locking assembly (7) is installed in the slide groove (5), the locking assembly (7) passes through the slide groove (5) and is clamped in the limiting assembly (4), limiting columns (8) are respectively fixed at the four corners of one side of the base (2), the laser head (3) is located between the four limiting columns (8), and one side of the limiting assembly (4) corresponds to Support components (9) are respectively installed at the positions of the limit columns (8), and the ends of the limit columns (8) are inserted into the support components (9). A frame (10) is fixed on the side of the limit component (4) away from the base (2), and a convex head (11) is installed on the side of the frame (10) away from the limit component (4). Two sliding frames (14) are installed through the frame (10), and a lens (15) is installed in the middle of the sliding frame (14). A correction component (12) is fixedly connected to the sliding frame (14), and a plurality of limit grooves (13) are opened on the outer wall of the frame (10) corresponding to the positions of the two correction components (12), and the correction component (12) is snapped into the limit grooves (13).

2. A narrow linewidth laser with an optical path correction mechanism according to claim 1, characterized in that: A support seat (16) is provided on the top of the laser body (1), the base (2) is snap-fitted into a guide groove provided on the support seat (16), a heat dissipation box (17) is provided on one side of the laser body (1), and an exhaust fan (18) is installed in the heat dissipation box (17).

3. The narrow linewidth laser with an optical path correction mechanism according to claim 1, characterized in that: The limiting component (4) comprises a fixing frame (401), the fixing frame (401) is plugged into one side of the base (2), the inner walls of the fixing frame (401) are respectively provided with card slots (402), the locking component (7) is card-engaged in the card slots (402), a heat-conducting tube (403) is fixed to the side of the fixing frame (401) away from the base (2), the laser head (3) is arranged in the heat-conducting tube (403), the outer wall of the heat-conducting tube (403) is provided with a plurality of heat sinks (404), and the supporting component (9) is fixed to one side of the heat-conducting tube (403), and the end of the laser head (3) passes through the heat-conducting tube (403) and is located inside the frame (10).

4. A narrow linewidth laser with an optical path correction mechanism according to claim 3, characterized in that: The locking assembly (7) comprises a slide plate (701), the slide plate (701) is slidably connected in the slide groove (5), a clamping strip (702) is fixed on one side of the slide plate (701), the clamping strip (702) is clamped in the clamping groove (402), one side of the clamping strip (702) is designed as an arc surface, and the other side of the clamping strip (702) is designed as a flat surface, and two L-shaped blocks (703) are fixed on the side of the slide plate (701) away from the clamping strip (702).

5. The narrow linewidth laser with an optical path correction mechanism according to claim 4, characterized in that: A first spring (705) is fixedly connected between the L-shaped block (703) and the slide groove (5); the L-shaped block (703) slides through the groove (6); and a pressing plate (704) is fixedly connected to one side of the two L-shaped blocks (703).

6. The narrow linewidth laser with an optical path correction mechanism according to claim 3, characterized in that: The support assembly (9) comprises a fixing sleeve (901), wherein the fixing sleeve (901) is fixed to one side of the fixing frame (401), a push block (902) is slidably connected inside the fixing sleeve (901), a second spring (903) is fixedly connected between the push block (902) and the inner wall of the fixing sleeve (901), and the push block (902) is overlapped on the end of the limiting column (8).

7. The narrow linewidth laser with an optical path correction mechanism according to claim 1, characterized in that: The correction component (12) comprises a fixing frame (121), the fixing frame (121) is of U-shaped design, and a pull rod (122) is slidably passed through the fixing frame (121), the end of the pull rod (122) is fixedly connected to a connecting plate (123), and a plurality of latching teeth (124) are installed on a side of the connecting plate (123) away from the pull rod (122), and the latching teeth (124) are latched in the limiting groove (13).

8. The narrow linewidth laser with an optical path correction mechanism according to claim 7, characterized in that: The pull rod (122) is U-shaped and has two ends sleeved with a third spring (125). The two ends of the third spring (125) are respectively fixed to the opposite surfaces of the connecting plate (123) and the fixing frame (121). The two fixing frames (121) are respectively arranged on the frame (10) in the longitudinal direction and the transverse direction.

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