Laser fiber stripping jig and laser fiber stripping method

Abstract

The invention discloses a laser fiber stripping jig and a laser fiber stripping method, which are characterized in that the laser fiber stripping jig mainly includes an optical fiber front end clamp, an optical fiber initial positioning clamp, an optical fiber tail end clamp, a mobile platform, an optical fiber limit fixing component, an optical fiber clamp mainboard, and a guide rail slider component; the laser fiber stripping method mainly includes: step A: stripping the optical fiber coating layer multiple times; step B: sweeping the stripped glass fiber to remove the coating layer residue attached to the glass fiber; step C: cleaning the stripped glass fiber with an optical fiber cleaning tool. Through the above jig and method, the stability of the laser fiber stripping process can be greatly improved and the production yield can be guaranteed.

Description

Technical Field

[0001] The invention relates to the field of fiber stripping devices, and in particular to a laser fiber stripping jig and a laser fiber stripping method. Background Art

[0002] At present, the commonly used fiber stripping device is to use a wire stripper to strip the coating of the optical fiber to expose the glass fiber inside. Generally, the diameter of the glass fiber at the center of the optical fiber is only 0.125mm. When stripping the optical fiber with a wire stripper, the minimum diameter of the blade cut is about 0.13mm, so as to ensure that the coating can be stripped cleanly without damaging the glass fiber. The sharpness of the wire stripper blade directly affects the quality of fiber stripping: because the stripping of the optical fiber coating is to cut into the coating by the extrusion of the wire stripper blade, this will produce extrusion stress on the tiny glass fiber inside at the microscopic level; if the blade is worn, this extrusion stress will be greater, and the residual stress in the fiber core will affect the performance of the optical fiber. In addition, because the cutting depth of the blade is controlled by the mechanical structure, when the positioning point is worn, the blade of the wire stripper will cut too deep, damaging the cladding or even the fiber core.

[0003] In summary, the currently commonly used mechanical wire stripping pliers fiber stripping process has problems such as low efficiency, poor fiber stripping consistency, and inability to achieve lossless cutting. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a laser fiber stripping jig and a fiber stripping method, so as to overcome the problems of low efficiency, poor fiber stripping consistency, and inability to achieve lossless cutting when using wire strippers to perform precision cutting of optical fibers and stripping of coatings in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] A laser fiber stripping jig, comprising: a laser fiber stripping jig, characterized in that it comprises: an optical fiber front end clamp 1, an optical fiber initial positioning clamp 2, an optical fiber tail end clamp 3, a mobile platform 4, an optical fiber limiting and fixing component 5, an optical fiber clamp main board 6, and a guide rail slider component 7; the optical fiber clamp main board 6 is placed horizontally and installed on the mobile platform 4; the optical fiber front end clamp 1 is installed at one end of the optical fiber clamp main board 6; the optical fiber tail end clamp 3 is installed at the other end of the optical fiber clamp main board 6, parallel to the optical fiber front end clamp 1; the optical fiber initial positioning clamp 2 is installed on the optical fiber clamp main board 6 through the guide rail slider component 7, parallel to the optical fiber front end clamp 1; the guide rail slider component 7 is perpendicular to the optical fiber front end clamp 1, and the number is not less than two groups; the optical fiber limiting and fixing component 5 is installed on the mobile platform 4; the optical fiber clamp adjustment slide plate 43 is installed on the right side of the optical fiber clamp main board 6; an adjustment slot 44 is provided on the optical fiber clamp adjustment slide plate 43.

[0007] The optical fiber front end fixture 1 comprises: an optical fiber front end fixture cover plate 8, an optical fiber front end fixture base 9, an optical fiber front end fixture profiling block 10, a positioning pin A11, and an optical fiber front end fixture cover plate clamping block 12; the optical fiber front end fixture base 9 is provided with no less than two magnet holes for installing magnets; the optical fiber front end fixture profiling block 10 and the positioning pin A11 are installed on the optical fiber front end fixture base 9; the optical fiber front end fixture cover plate 8 is provided with a left-right symmetrical optical fiber front end fixture cover plate positioning notch 13, and the top is provided with There is a threaded hole 14 at the top of the optical fiber front end clamp cover plate for installing a handle; the optical fiber front end clamp cover plate 8 can be connected and fixed to the optical fiber front end clamp base 9 by magnetic attraction; the optical fiber front end clamp cover plate positioning notch 13 is loosely matched with the positioning pin A11; the optical fiber front end clamp cover plate clamp block 12 is installed under the optical fiber front end clamp cover plate 8; the optical fiber front end clamp profiling block 10 is provided with a plurality of front end clamp profiling grooves 15, and the size of the front end clamp profiling grooves 15 is related to the type of optical fiber to be stripped.

[0008] The optical fiber initial positioning fixture 2 includes: an optical fiber initial positioning pressure plate 16, an optical fiber initial positioning base 17, an optical fiber initial positioning profiling block 18, an optical fiber initial positioning adjustment pressure plate 19, an optical fiber initial positioning handle 20, an optical fiber initial positioning suction block 21, an optical fiber initial positioning adjustment block 22, a positioning pin B23, an optical fiber initial positioning pressure plate top thread hole 24, an optical fiber initial positioning profiling groove 25, an adjustment block locking hole 26, an adjustment pressure plate locking hole 27, an adjustment pressure through hole 28, and a knurled screw 45; the optical fiber initial positioning profiling block 18 is installed on the optical fiber initial positioning base 17; one end of the optical fiber initial positioning pressure plate 16 is hinged to the optical fiber initial positioning base 17, and the other end is hinged to the optical fiber initial positioning handle 20; the upper surface of the optical fiber initial positioning pressure plate 16 is provided with at least one threaded through hole for installation Top screw; the optical fiber initial positioning adjustment block 22 and the positioning pin B23 are installed on the same side of the optical fiber initial positioning pressure plate 16. During installation, the positioning pin B23 passes through the waist groove set on the optical fiber initial positioning adjustment block 22; the optical fiber initial positioning adjustment pressure plate 19 is installed below the optical fiber initial positioning adjustment block 22; the optical fiber initial positioning suction block 21 is installed on the optical fiber initial positioning pressure plate 16, and is located on the same side as the optical fiber initial positioning handle 20; the optical fiber initial positioning pressure plate 16 is installed above the optical fiber initial positioning adjustment pressure plate 19; a magnet is provided on one side of the optical fiber initial positioning base 17, corresponding to the position of the optical fiber initial positioning suction block 21; the knurled screw 45 passes through the adjustment slot 44 and is installed on the optical fiber initial positioning base 17.

[0009] The optical fiber tail end clamp 3 includes: a cam handle assembly 29, an optical fiber tail end clamp profiling block 30, an optical fiber tail end clamp base 31, an optical fiber tail end clamp buffer block 32, an optical fiber tail end clamp upper pressure plate 33, an optical fiber tail end clamp upper pressure plate handle 34, a handle groove 35, a tail end clamp profiling block mounting hole 37, a tail end clamp profiling groove 36, an optical fiber limiting fixing block 38, and an optical fiber limiting fixing block connecting plate 39. One end of the optical fiber tail end clamp base 31 is hinged to the cam handle assembly 29, and the other end is hinged to the optical fiber tail end clamp upper pressure plate 33; the optical fiber tail end clamp upper pressure plate handle 34 is installed on one end of the optical fiber tail end clamp upper pressure plate 33; one end of the optical fiber tail end clamp upper pressure plate 33 is provided with a handle groove 35, the size of which is adapted to the cam handle assembly 29; a plurality of tail end clamp profiling grooves 36 are provided on the optical fiber tail end clamp profiling block 30; the optical fiber tail end clamp profiling block 30 is installed on the optical fiber tail end clamp base 31; the optical fiber tail end clamp buffer block 32 is installed on the optical fiber tail end clamp base 31.

[0010] The optical fiber front end clamp profiling block 10, the optical fiber front end clamp cover plate clamp block 12, the optical fiber initial positioning pressure plate 16, the optical fiber initial positioning profiling block 18, the optical fiber tail end clamp profiling block 30, and the optical fiber tail end clamp buffer block 32 are all made of flexible materials to achieve a buffering effect and avoid damaging the optical fiber.

[0011] The optical fiber position limiting and fixing assembly 5 comprises: an optical fiber position limiting and fixing block 38, a fixing block connecting plate 39, an L-shaped pin 40, a pin slot 41, and a buckle plug 42. The optical fiber position limiting and fixing block 38 is provided with an open cylindrical slot; the optical fiber position limiting and fixing block 38 is provided with a pin slot 41; the L-shaped pin 40 is installed in the pin slot 41; the optical fiber position limiting and fixing block 38 is installed on the fixing block connecting plate 39, and the fixing block connecting plate 39 is installed on the moving platform 4.

[0012] A laser fiber stripping method based on the above-mentioned laser fiber stripping fixture is characterized in that it mainly includes step A: stripping the optical fiber coating layer multiple times in layers with a laser; step B: whitening the stripped glass fiber with a laser to remove the vaporized residue of the coating layer attached to the optical fiber cladding; step C: cleaning the stripped glass fiber with a fiber cleaning tool dipped in alcohol.

[0013] The step A specifically includes: installing one or more optical fibers on the fixture of the laser fiber stripping machine so that the position where the coating needs to be stripped is within the working range of the laser; turning on the laser, and using the laser beam to strip the optical fiber coating layer multiple times in layers with a filling density less than or equal to 0.03.

[0014] According to a laser fiber stripping method according to claim 7, it is characterized in that the step B specifically comprises: using a laser beam to whiten the glass fiber with a filling density less than or equal to 0.1 to remove the vaporized residue remaining on the surface of the cladding.

[0015] The step C specifically includes: taking an optical fiber cleaning tool, applying a little alcohol, and wiping the optical fiber axially and unidirectionally to avoid damaging the optical fiber.

[0016] In particular, when the optical fiber to be stripped is a ribbon fiber, step D must be performed before performing step A; step D specifically includes: installing one or more optical fibers on the fixture of the laser fiber stripping machine so that the position where the coating needs to be stripped is within the working range of the laser; turning on the laser, and using the laser beam to preheat the optical fiber coating with a filling density less than or equal to 0.1.

[0017] Particularly, the laser power ratio of step A, step B, and step D is about 3:1:1.

[0018] Preferably, the optical fiber cleaning tool is a round-head soft-bristle brush, optical fiber fusion cleaning paper, or optical fiber dust-free paper.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This fixture can simultaneously clamp multi-core optical cables or ribbon fibers before laser stripping, and can strip multiple optical fibers at a time, significantly improving production efficiency;

[0021] (2) The coating layer is pre-cooled during vaporization, which easily forms residue on the surface of the cladding. Multiple layered stripping can not only remove the residue to the greatest extent, but also avoid a single high-energy stripping that makes the fiber core brittle and affects the mechanical strength of the optical fiber. The stripping process causes little damage to the optical fiber, has a high yield, and increases economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the three-dimensional structure of a laser fiber stripping fixture described in an embodiment of the present invention.

[0023] Figure 2 The present invention is a schematic diagram of a fiber front end fixture structure of a laser fiber stripping fixture according to an embodiment of the present invention.

[0024] Figure 3 The present invention is a schematic diagram of an optical fiber initial positioning fixture structure of a laser fiber stripping fixture according to an embodiment of the present invention.

[0025] Figure 4 This is a front view of the optical fiber initial positioning fixture structure of a laser fiber stripping fixture described in an embodiment of the present invention.

[0026] Figure 5The present invention is a schematic diagram of the unfolded structure of the optical fiber tail end clamp of a laser fiber stripping fixture according to an embodiment of the present invention.

[0027] Figure 6 The present invention is a schematic diagram of the structure of an optical fiber limiting and fixing component of a laser fiber stripping fixture according to an embodiment of the present invention.

[0028] Figure 7 The figure is a schematic diagram of the working steps of a laser fiber stripping tool according to an embodiment of the present invention.

[0029] Figure 8 This is a rear view of the three-dimensional structure of a laser fiber stripping fixture according to an embodiment of the present invention.

[0030] In the figure:

[0031] Fiber optic front end fixture 1, fiber optic initial positioning fixture 2, fiber optic tail end fixture 3, mobile platform 4, fiber optic limit fixing assembly 5, fiber optic fixture mainboard 6, guide rail slider assembly 7, fiber optic front end fixture cover plate 8, fiber optic front end fixture base 9, fiber optic front end fixture profiling block 10, positioning pin A11, fiber optic front end fixture cover plate clamp 12, fiber optic front end fixture cover plate positioning notch 13, fiber optic front end fixture cover plate top threaded hole 14, front end fixture profiling groove 15, fiber optic initial positioning pressure plate 16, fiber optic initial positioning base 17, fiber optic initial positioning profiling block 18, fiber optic initial positioning adjustment pressure plate 19, fiber optic initial positioning handle 20, fiber optic initial positioning suction block 21, fiber optic initial positioning adjustment block 22. Positioning pin B23. Top screw hole of optical fiber initial positioning pressure plate 24. Optical fiber initial positioning profiling groove 25. Adjustment block locking hole 26. Adjustment pressure plate locking hole 27. Adjustment pressure through hole 28. Cam handle assembly 29. Optical fiber tail end clamp profiling block 30. Optical fiber tail end clamp base 31. Optical fiber tail end clamp buffer block 32. Optical fiber tail end clamp upper pressure plate 33. Optical fiber tail end clamp upper pressure plate handle 34. Handle groove 35. Tail end clamp profiling block mounting hole 37. Tail end clamp profiling groove 36. Optical fiber limiting fixing block 38. Fixing block connecting plate 39. L-shaped pin 40. Pin groove 41. Buckle plug 42. Optical fiber clamp adjustment slide plate 43. Adjustment groove 44. Knurled screw 45. DETAILED DESCRIPTION

[0032] The present invention provides a laser fiber stripping jig and a fiber stripping method. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail by the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] (1) Taking a certain model of 30W double-ended fiber laser stripper and a 0.9mm diameter tight-buffered optical fiber as an example, there are the following embodiments:

[0034] 1. Step A: The optical fiber coating layer is stripped three times by laser, and the parameters are: filling density 0.03mm, speed 625mm / s, frequency 90kHz; filling density 0.03mm, speed 600mm / s, frequency 90kHz; filling density 0.03mm, speed 750mm / s, frequency 20kHz;

[0035] 2. Step B: Use laser to scan the stripped glass fiber to remove the vaporized residue of the coating layer attached to the optical fiber cladding; parameters: filling density: 0.06mm, frequency 20kHz, speed 1200mm / s;

[0036] 3. Step C: Take a fiber splicing cloth or dust-free cleaning cotton, dip it in the cleaning agent, and clean the cylindrical surface of the glass fiber. After cleaning, cover it with a dust cap to prevent contamination.

[0037] (2) Taking a certain model of 30W double-headed fiber laser stripper and 8-core ribbon fiber as an example, there are the following embodiments:

[0038] 1. Step D: Fix at least one ribbon fiber on the fixture through the groove in the fixture, pull the block to align the fiber head in the fixture; start the laser to preheat the coating layer of the ribbon fiber to be stripped; the parameters are filling density: 0.1mm, frequency 90kHz, speed 800mm / s.

[0039] 2. Step A: The optical fiber coating is stripped by laser, and the parameters are: filling density 0.03mm, speed 800mm / s, frequency 90kHz;

[0040] 3. Step B: Use laser to scan the stripped glass fiber to remove the vaporized residue of the coating layer attached to the optical fiber cladding; parameters: filling density: ≤0.1, frequency; 20kHz, speed 2000mm / s;

[0041] 4. Step C: Take a fiber fusion cloth or dust-free cleaning cotton, dip it in the cleaning agent, and clean the cylindrical surface of the glass fiber. After cleaning, cover it with a dust cap to prevent contamination.

[0042] Unless otherwise specified, the fiber stripping steps should be performed continuously.

[0043] In particular, the cleaning agent mentioned in the above embodiment is recommended to be pure optical grade isopropyl alcohol (IPA), and analytical grade anhydrous ethanol can be used according to actual conditions. It should be understood that the application of the present invention is not limited to the above examples, which are only for the convenience of understanding by ordinary technicians in the field. Any equivalent substitution or conversion based on the above description should belong to the protection scope of the claims attached to the present invention.

Claims

1. A laser fiber stripping jig, characterized in that: include: An optical fiber front end clamp (1), an optical fiber initial positioning clamp (2), an optical fiber tail end clamp (3), a mobile platform (4), an optical fiber limit fixing assembly (5), an optical fiber clamp main board (6), and a guide rail slider assembly (7); the optical fiber clamp main board (6) is placed horizontally and mounted on the mobile platform (4); the optical fiber front end clamp (1) is mounted on one end of the optical fiber clamp main board (6); the optical fiber tail end clamp (3) is mounted on the other end of the optical fiber clamp main board (6), and the optical fiber tail end clamp (3) is parallel to the optical fiber front end clamp (1); The optical fiber initial positioning fixture (2) is mounted on the optical fiber fixture mainboard (6) via the guide rail slider assembly (7), and the optical fiber initial positioning fixture (2) is parallel to the optical fiber front end fixture (1); the guide rail slider assembly (7) is perpendicular to the optical fiber front end fixture (1), and the number is not less than two sets; the optical fiber limit fixing assembly (5) is mounted on the mobile platform (4); the optical fiber fixture adjustment slide plate (43) is mounted on the right side of the optical fiber fixture mainboard (6); the optical fiber fixture adjustment slide plate (43) is provided with an adjustment slot (44); The optical fiber front end fixture (1) comprises: an optical fiber front end fixture cover plate (8), an optical fiber front end fixture base (9), an optical fiber front end fixture profiling block (10), a positioning pin A (11), and an optical fiber front end fixture cover plate clamping block (12); the optical fiber front end fixture base (9) is provided with no less than two magnet holes for mounting magnets; the optical fiber front end fixture profiling block (10) and the positioning pin A (11) are mounted on the optical fiber front end fixture base (9); the optical fiber front end fixture cover plate (8) is provided with bilaterally symmetrical optical fiber front end fixture cover plate positioning notches (13); the top of the optical fiber front end fixture cover plate (8) is provided with an optical fiber front end fixture cover plate top threaded hole (14) for mounting a handle; the optical fiber front end fixture base (9) is provided with a plurality of optical fiber front end fixture profiling blocks (12) for mounting magnets; the optical fiber front end fixture base (9) is provided with a plurality of optical fiber front end fixture profiling blocks (10) for mounting magnets; the optical fiber front end fixture base (9) is provided with a plurality of optical fiber front end fixture profiling blocks (10) for mounting magnets; the optical fiber front end fixture base (9) is provided with a plurality of optical fiber front end fixture profiling blocks (11) for mounting magnets ...1) for mounting magnets; the optical fiber front end The fixture cover plate (8) is connected and fixed to the optical fiber front end fixture base (9) by means of magnetic attraction; the positioning notch (13) of the optical fiber front end fixture cover plate is loosely matched with the positioning pin A (11); the optical fiber front end fixture cover plate clamping block (12) is installed below the optical fiber front end fixture cover plate (8); the optical fiber front end fixture profiling block (10) is provided with a plurality of front end fixture profiling grooves (15), and the size of the front end fixture profiling grooves (15) is related to the type of optical fiber to be stripped; the optical fiber initial positioning fixture (2) comprises: an optical fiber initial positioning pressure plate (16), an optical fiber initial positioning base (17), an optical fiber initial positioning profiling block (18), an optical fiber initial positioning adjustment pressure plate (19), an optical fiber initial positioning handle (20), and an optical fiber initial positioning adjusting plate (19). A positioning suction block (21), an optical fiber initial positioning adjustment block (22), a positioning pin B (23), an optical fiber initial positioning pressure plate top screw hole (24), an optical fiber initial positioning profiling groove (25), an adjustment block locking hole (26), an adjustment pressure plate locking hole (27), and an adjustment pressure through hole (28); the optical fiber initial positioning profiling block (18) is installed on the optical fiber initial positioning base (17); one end of the optical fiber initial positioning pressure plate (16) is hinged to the optical fiber initial positioning base (17), and the other end of the optical fiber initial positioning pressure plate (16) is hinged to the optical fiber initial positioning handle (20); the upper surface of the optical fiber initial positioning pressure plate (16) is provided with at least one optical fiber initial positioning pressure plate top screw hole (24) for installing a top screw; the optical fiber initial positioning pressure plate (16) is provided with a plurality of optical fiber initial positioning pressure plate top screw holes (24) for installing a top screw; The positioning adjustment block (22) and the positioning pin B (23) are installed on the same side of the optical fiber initial positioning pressure plate (16). During installation, the positioning pin B (23) passes through the waist groove provided on the optical fiber initial positioning adjustment block (22); the optical fiber initial positioning adjustment pressure plate (19) is installed below the optical fiber initial positioning adjustment block (22); the optical fiber initial positioning suction block (21) is installed on the optical fiber initial positioning pressure plate (16) and is located on the same side as the optical fiber initial positioning handle (20); the optical fiber initial positioning pressure plate (16) is installed above the optical fiber initial positioning adjustment pressure plate (19); a magnet is provided on one side of the optical fiber initial positioning base (17) and corresponds to the position of the optical fiber initial positioning suction block (21);The optical fiber tail end fixture (3) comprises: a cam handle assembly (29), an optical fiber tail end fixture profiling block (30), an optical fiber tail end fixture base (31), an optical fiber tail end fixture buffer block (32), an optical fiber tail end fixture upper pressure plate (33), an optical fiber tail end fixture upper pressure plate handle (34), a handle groove (35), a tail end fixture profiling block mounting hole (37), and a tail end fixture profiling groove (36); one end of the optical fiber tail end fixture base (31) is hinged to the cam handle assembly (29), and the other end is hinged to the optical fiber tail end fixture upper pressure plate (33); The optical fiber tail end clamp upper pressure plate handle (34) is mounted on one end of the optical fiber tail end clamp upper pressure plate (33); one end of the optical fiber tail end clamp upper pressure plate (33) is provided with a handle groove (35), the size of which is adapted to the cam handle assembly (29); the optical fiber tail end clamp profiling block (30) is provided with a plurality of tail end clamp profiling grooves (36); the optical fiber tail end clamp profiling block (30) is mounted on the optical fiber tail end clamp base (31); the optical fiber tail end clamp buffer block (32) is mounted on the optical fiber tail end clamp base (31). ; 2. The laser fiber stripping jig according to claim 1, characterized in that: The optical fiber front end clamp profiling block (10), the optical fiber front end clamp cover plate clamping block (12), the optical fiber initial positioning pressure plate (16), the optical fiber initial positioning profiling block (18), the optical fiber tail end clamp profiling block (30), and the optical fiber tail end clamp buffer block (32) are all made of flexible materials to achieve a buffering effect and avoid damaging the optical fiber.

3. The laser fiber stripping jig according to claim 1, characterized in that: The optical fiber position limiting and fixing assembly (5) comprises: an optical fiber position limiting and fixing block (38), a fixing block connecting plate (39), an L-shaped pin (40), a pin slot (41), and a buckle plug (42); the optical fiber position limiting and fixing block (38) is provided with an open cylindrical slot; the optical fiber position limiting and fixing block (38) is provided with a pin slot (41); the L-shaped pin (40) is installed in the pin slot (41); the optical fiber position limiting and fixing block (38) is installed on the fixing block connecting plate (39), and the fixing block connecting plate (39) is installed on the moving platform (4).

4. A laser fiber stripping method based on the laser fiber stripping fixture according to any one of claims 1 to 3, characterized in that: The method comprises the steps of: stripping the optical fiber coating layer by multiple layers with a laser; step B: whitening the stripped glass fiber with a laser to remove the vaporized residue of the coating layer attached to the optical fiber cladding; and step C: cleaning the stripped glass fiber with an optical fiber cleaning tool dipped in alcohol.

5. A laser fiber stripping method according to claim 4, characterized in that: The step A specifically includes: installing one or more optical fibers on the fixture of the laser fiber stripping fixture so that the position where the coating needs to be stripped is within the working range of the laser; turning on the laser so that the laser beam strips the optical fiber coating layer multiple times in layers at a filling density less than or equal to 0.

03.

6. A laser fiber stripping method according to claim 4, characterized in that: The step B specifically includes: using a laser beam to whiten the glass fiber at a packing density of less than or equal to 0.1 to remove vaporized residues remaining on the surface of the cladding.

7. A laser fiber stripping method according to claim 4, characterized in that: The step C specifically includes: taking an optical fiber cleaning tool, applying a little alcohol, and wiping the optical fiber axially and unidirectionally to avoid damaging the optical fiber.

8. A laser fiber stripping method according to claim 4, characterized in that: When the optical fiber to be stripped is a ribbon fiber, step D needs to be performed before performing step A; step D specifically includes: installing one or more optical fibers on the fixture of the laser fiber stripping fixture so that the position where the coating needs to be stripped is within the working range of the laser; turning on the laser so that the laser beam preheats the optical fiber coating with a filling density less than or equal to 0.

1.

9. A laser fiber stripping method according to claim 8, characterized in that: The laser power ratio of step A, step B, and step D is 3:1:

1.

10. A laser fiber stripping method according to claim 7, characterized in that: The optical fiber cleaning tool comprises a round-head soft-bristle brush and optical fiber fusion cleaning paper.

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