Optical fiber stripper cooling module and manufacturing method thereof

Abstract

The application discloses a fiber stripper cooling module and a manufacturing method thereof, and relates to the technical field of fiber stripper cooling. The fiber stripper cooling module comprises a fiber stripper, a first cooling chamber, a second cooling chamber and at least two conducting chambers. The first cooling chamber has a sealed cavity, two first communication holes are formed in the sealed cavity, one end of the fiber stripper penetrates into one of the first communication holes and penetrates out of the other first communication hole, a cooling medium is arranged in the first sealed cavity, and at least two second communication holes are formed in the sealed cavity. The second cooling chamber has a cooling channel, and at least two third communication holes are formed in the cooling channel. Each conducting chamber is connected with one second communication hole and one third communication hole, so that the cooling medium can flow between the sealed cavity and the cooling channel. The fiber stripper cooling module provided by the application has high cooling efficiency and good sealing performance, and is especially suitable for high-power fiber lasers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fiber stripper cooling, and particularly relates to a fiber stripper cooling module and a manufacturing method thereof. BACKGROUND

[0002] The fiber stripper is an ideal device for removing residual pump light in the cladding, ASE light and high-order mode signal light transmitted from the fiber core to the inner cladding in a double-clad fiber laser / amplifier.

[0003] In a high-power fiber laser and a fiber amplifier, pump light and signal light exchange energy in a doped fiber, the pump is weakened and the signal is enhanced, the pump energy cannot be completely absorbed, and there is always some residual energy which is transmitted in the outer cladding of the double-clad fiber (such as 793 nm, 808 nm, 915 nm, 940 nm, 976 nm, etc.). This part of energy is often unnecessary and may cause damage to subsequent devices. The fiber stripper can effectively "strip" the residual pump in the cladding and even the reflected signal light returned from the inner cladding, while the signal light transmitted in the fiber core can be well maintained, including signal light power and beam quality factor (M 2 ).

[0004] In the prior art, a conduction cooling method is usually used to cope with the heat effect problem of the fiber laser, especially the high-power fiber laser. In this cooling conduction method, the fiber stripper is fixed in a metal sealed cavity, and the heat accumulated in the fiber stripper is dissipated through a conduction material (such as a cooling liquid) between the fiber stripper and the metal sealed cavity.

[0005] However, the existing metal sealed cavity has a complex structure and poor packaging reliability, and is prone to water leakage. At the same time, due to poor sealing, dust and other impurities in the air can easily enter the metal sealed cavity, pollute the conduction material in the cavity, and the impurities attached to the surface of the fiber stripper reduce the heat dissipation effect of the fiber stripper, thereby restricting the output power improvement of the fiber laser. In addition, the existing metal sealed cavity structure is complex and large in size, which is not conducive to miniaturization. SUMMARY

[0006] Therefore, the present application provides a fiber stripper cooling module and a manufacturing method thereof to solve the technical problem of the complex and poor sealing effect of the metal sealed cavity structure for cooling the fiber stripper in the prior art.

[0007] The present application provides:

[0008] A fiber stripper cooling module, comprising:

[0009] a fiber stripper;

[0010] The first cooling chamber has a sealed cavity, two first communication holes are arranged on the sealed cavity, one end of the fiber stripper is inserted into one of the first communication holes and is drawn out from the other first communication hole, the hole walls of the two first communication holes are respectively connected with the two ends of the fiber stripper, a cooling medium is arranged in the sealed cavity, and at least two second communication holes are arranged on the sealed cavity.

[0011] The second cooling chamber has a cooling channel, and at least two third communication holes are arranged on the cooling channel.

[0012] The at least two conducting chambers are respectively connected with one of the second communication holes and one of the third communication holes, so that the cooling medium flows between the sealed cavity and the cooling channel.

[0013] In addition, the fiber stripper cooling module according to the present application can also have the following additional technical features:

[0014] In some embodiments of the present application, the first cooling chamber further comprises two clamping assemblies, and the two clamping assemblies are respectively arranged at the two first communication holes.

[0015] The clamping assembly is provided with a first through hole, the clamping assembly is connected with the hole wall of the first communication hole, and the fiber stripper is inserted into or drawn out of the sealed cavity through the first through hole.

[0016] In some embodiments of the present application, the clamping assembly further comprises at least one first sealing member, the first sealing member is sleeved on the fiber stripper and abuts against the clamping assembly, and the first sealing member is used for sealing the gap between the first through hole and the fiber stripper.

[0017] In some embodiments of the present application, the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part is provided with a first groove, the second clamping part is embedded in the first groove, the first clamping part is embedded in the first communication hole, and the first through hole penetrates through the first clamping part and the second clamping part.

[0018] The number of the first sealing members is two, one of the first sealing members is clamped between the groove bottom of the first groove and the second clamping part, and the other first sealing member abuts against one side of the first clamping part away from the second clamping part.

[0019] In some embodiments of the present application, the second cooling chamber further comprises a connecting plate, and the connecting plate is detachably connected with the sealed cavity.

[0020] The connecting plate is provided with at least two positioning holes, and each of the through holes is provided with one of the positioning holes.

[0021] In some embodiments of the present application, the connecting plate is further provided with at least two connecting holes, and the connecting holes are arranged close to the positioning holes.

[0022] The sealing cavity is further provided with a connecting column, and the connecting column is threadedly connected or clamped with the connecting hole.

[0023] In some embodiments of the present application, the second cooling chamber further comprises a cold source and a pressure pump, the pressure pump drives the cooling medium to flow between the sealing cavity and the cooling channel, and the cold source is connected with the cooling channel to transfer the heat of the cooling medium.

[0024] In some embodiments of the present application, the through hole comprises a shell and at least one third sealing element, the shell is communicated with the second communication hole and the third communication hole, and the third sealing element is sleeved outside the shell and is used for sealing the gap between the shell and the second communication hole.

[0025] In some embodiments of the present application, when the number of the third sealing element is one, the third sealing element is clamped between the sealing cavity and the connecting plate.

[0026] The present application further provides a manufacturing method of the optical fiber stripper cooling module, which is used for manufacturing the optical fiber stripper cooling module as described above, and comprises the following steps:

[0027] Preparation of the optical fiber stripper;

[0028] Obtaining two first clamping parts, two second clamping parts, two through holes, a second cooling chamber, a sealing cavity and six sealing elements;

[0029] One end of the optical fiber stripper is inserted into one of the first communication holes and is inserted out of another one of the first communication holes;

[0030] Two of the sealing elements are sleeved on two ends of the optical fiber stripper respectively, and then two of the first clamping parts are sleeved on the two ends of the optical fiber stripper respectively, and the sealing elements are kept abutting against the first clamping parts;

[0031] Two other sealing elements are sleeved on the two ends of the optical fiber stripper respectively, and then two second clamping parts are sleeved on the two ends of the optical fiber stripper respectively, so that the sealing elements are clamped between the first clamping parts and the second clamping parts;

[0032] The two first clamping parts are assembled at the first communication holes of the sealing cavity;

[0033] Assembling two second clamping parts with two first clamping parts respectively;

[0034] Connecting one end of each of the through chambers with the sealed cavity at the second communication holes and connecting the other end of each of the through chambers with the second cooling chamber at the third communication holes;

[0035] Sleeving the last two seals outside the through chambers respectively and clamping the last two seals between the sealed cavity and the second cooling chamber.

[0036] Compared with the prior art, the application has the beneficial effects that the application provides an optical fiber stripper cooling module, the first cooling chamber has a sealed cavity, two first communication holes are arranged on the sealed cavity, one end of the optical fiber stripper penetrates into one of the first communication holes and penetrates out of the other first communication hole, the hole walls of the two first communication holes are respectively sealed with the optical fibers at the two ends of the optical fiber stripper, the connection structure is simple and the overall volume is small, the sealing performance of the first cooling chamber is improved, and the cooling medium is prevented from being polluted. Meanwhile, each of the through chambers is connected with one of the second communication holes and one of the third communication holes, and the cooling medium flows between the sealed cavity and the cooling channel, so that the connection structure is simple and the cooling efficiency is high.

[0037] In addition, the application also provides a manufacturing method of an optical fiber stripper cooling module, which is used for manufacturing the optical fiber stripper cooling module, the manufacturing method is simple and efficient, the optical fiber stripper cooling module manufactured by the method has good sealing performance and good cooling effect, and can be particularly suitable for high-power fiber lasers. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0039] Figure 1 The structure schematic diagram of the optical fiber stripper cooling module in some embodiments of the application is shown;

[0040] Figure 2 The cross-sectional structure schematic diagram of the optical fiber stripper cooling module in some embodiments of the application is shown;

[0041] Figure 3 The structure schematic diagram of the optical fiber stripper cooling module in some embodiments of the application is shown; Figure 2 The enlarged structure schematic diagram of A in FIG. 4 is shown;

[0042] Figure 4 Fig. 1 shows a structural schematic diagram of a first cooling chamber in some embodiments of the present application;

[0043] Figure 5 Fig. 2 shows a structural schematic diagram of a second cooling chamber in some embodiments of the present application;

[0044] Figure 6 Fig. 3 shows a cross-sectional structural schematic diagram of a first cooling chamber in some embodiments of the present application;

[0045] Figure 7 Fig. 4 shows a cross-sectional structural schematic diagram of a lead-through chamber in some embodiments of the present application;

[0046] Figure 8 Fig. 5 shows a structural schematic diagram of a clamping assembly in some embodiments of the present application;

[0047] Figure 9 Fig. 6 shows a flowchart of a manufacturing method of an optical fiber stripper cooling module;

[0048] Figure 10 Fig. 7 shows a structural schematic diagram of an optical fiber stripper in some embodiments of the present application.

[0049] Main element symbol explanation: 100-optical fiber stripper cooling module; 200-optical fiber stripper; 210-stripped optical fiber; 220-glass tube; 110-first cooling chamber; 111-sealing cavity; 1111-first communication hole; 112-clamping assembly; 1121-first clamping part; 1122-second clamping part; 1123-first through hole; 11211-first groove; 1124-first sealing element; 1125-flow-through hole; 1126-clamping through hole; 1112-second communication hole; 1113-connection column; 120-second cooling chamber; 121-connection plate; 122-cooling channel; 1221-third communication hole; 1223-connection hole; 1222-positioning hole; 130-lead-through chamber; 131-housing; 132-filtering part; 133-third sealing element; 1311-lead-through opening; 1312-receiving cavity. DETAILED DESCRIPTION

[0050] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0051] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0053] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0055] In the related art, the first cooling chamber and the second cooling chamber are separately arranged, and the cooling medium in the first cooling chamber needs to circulate between the second cooling chamber and the first cooling chamber through the pipeline, and the connection structure of the pipeline is complex, which is not conducive to the miniaturization of the optical fiber stripping device cooling module.

[0056] As Figures 1 to 3As shown, the embodiment of the present application provides a fiber stripper cooling module 100 for high-power fiber lasers and fiber amplifiers, which comprises a fiber stripper 200, a first cooling chamber 110, a second cooling chamber 120 and at least two through chambers 130. The fiber stripper 200 is arranged in the first cooling chamber 110, the first cooling chamber 110 is provided with a cooling medium, and the two through chambers 130 are arranged at intervals, and the through chambers 130 are connected between the first cooling chamber 110 and the second cooling chamber 120 to make the cooling medium flow between the first cooling chamber 110 and the second cooling chamber 120.

[0057] For reference, please see Figures 4 to 6 In the embodiment, the first cooling chamber 110 has a sealed cavity 111, two first communication holes 1111 are arranged at intervals on the sealed cavity 111, one end of the fiber stripper 200 penetrates into one first communication hole 1111 and penetrates out of the other first communication hole 1111.

[0058] Specifically, the sealed cavity 111 is integrally formed by using plastic, glass or metal material, and has a hollow hexahedron shape. The two first communication holes 1111 are arranged on two faces arranged at intervals.

[0059] The hole walls of the two first communication holes 1111 are respectively sealedly connected with the two ends of the fiber stripper 200. Specifically, the hole walls of the first communication holes 1111 are directly connected or indirectly connected with the fiber stripper 200. In the embodiment, the hole walls of the first communication holes 1111 are indirectly connected with the fiber stripper 200. Further, the first cooling chamber 110 further comprises two clamping assemblies 112, and the two clamping assemblies 112 are respectively arranged at the two first communication holes 1111.

[0060] The clamping assembly 112 is provided with a first through hole 1123, the outer side of the clamping assembly 112 is connected with the hole wall of the first communication hole 1111, and the fiber stripper 200 penetrates into or penetrates out of the sealed cavity 111 through the first through hole 1123. The clamping assembly 112 has a cylindrical shape, and the axis direction of the first through hole 1123 is the same as the axis direction of the clamping assembly 112. The outer side surface of the clamping assembly 112 is provided with external threads, the hole wall of the first communication hole 1111 is provided with internal threads, and the clamping assembly 112 is threadedly connected with the hole wall of the first communication hole 1111. It can be understood that the clamping assembly 112 and the hole wall of the first communication hole 1111 can also be connected in a clamping manner, for example, the clamping assembly 112 and the first communication hole 1111 are formed in an interference fit. The two connection modes have simple processing technology and good reliability.

[0061] Further, the clamping assembly 112 comprises a first clamping part 1121 and a second clamping part 1122, the first clamping part 1121 is provided with a first recess 11211, the opening direction of the first recess 11211 is away from the sealing cavity 111. The second clamping part 1122 is embedded in the first recess 11211 and connected with the groove wall of the first recess 11211, and the first through hole 1123 penetrates the first clamping part 1121 and the second clamping part 1122.

[0062] The outer side of the first clamping part 1121 is threadedly connected with the hole wall of the first communication hole 1111, and the second clamping part 1122 is threadedly connected or clamped with the groove wall of the first recess 11211. The fiber stripper 200 is clamped or bonded with the hole wall of the first through hole 1123. Such indirect connection structure can reduce the manufacturing difficulty of the sealing cavity 111, and the connection structure is simple, which can better fix the fiber stripper 200 and prevent the fiber stripper 200 from moving with the flow of the cooling medium.

[0063] In order to increase the sealing performance of the connection between the fiber stripper 200 and the first clamping part 1121, the connection between the fiber stripper 200 and the second clamping part 1122, and the connection between the first clamping part 1121 and the first communication hole 1111, the clamping assembly 112 further comprises a first sealing member 1124 and a second sealing member (not shown in the figure), wherein the first sealing member 1124 is sleeved on the outer side of the fiber stripper 200, and the second sealing member is sleeved on the outer side of the clamping assembly 112, and the second sealing member is used to seal the connection between the first clamping part 1121 and the first communication hole 1111.

[0064] The number of the first sealing member 1124 is at least two.

[0065] As an example, the number of the first sealing member 1124 is two, one first sealing member 1124 is sleeved on the fiber stripper 200 and is arranged between the groove bottom of the first recess 11211 and the second clamping part 1122, so as to seal the gap between the first clamping part 1121 and the second clamping part 1122, and the first sealing member 1124 adopts a sealing ring.

[0066] Another first sealing member 1124 is sleeved on the fiber stripper 200 and abuts against the first clamping part 1121 near the side of the bottom of the first groove 11211, and the first sealing member 1124 also abuts against the hole wall of the first communication hole 1111, so that the gap between the first through hole 1123 and the fiber stripper 200 and the gap between the first clamping part 1121 and the first communication hole 1111 can be sealed at the same time. The first sealing member 1124 is a special-shaped sealing member which can completely cover the surface of the side of the first clamping part 1121 near the bottom of the groove and extend to the surface near the hole wall of the first communication hole 1111. In short, the special-shaped sealing member can wrap the surface of the end of the first clamping part 1121 away from the opening of the first groove 11211. In this way, the sealing performance of the first cooling chamber 110 can be improved, and the leakage of the cooling medium can be prevented.

[0067] As an example, two first sealing members 1124 and one second sealing member can also be provided, and the first sealing members 1124 and the second sealing member are all sealing rings. One of the first sealing members 1124 is sleeved on the fiber stripper 200 and located between the bottom of the first groove 11211 and the second clamping part 1122, and the other first sealing member 1124 is sleeved on the fiber stripper 200 and abuts against the side of the first clamping part 1121 near the bottom of the first groove 11211. In this way, the sealing performance of the first cooling chamber 110 can be improved, and the leakage of the cooling medium can be prevented.

[0068] As shown in FIG. 1, Figure 8 In other embodiments, the hole wall of the first communication hole 1111 is directly and sealingly connected with the fiber stripper 200, which means that the fiber stripper 200 is adhesively connected with the hole wall of the first communication hole 1111 by sealing glue and / or the fiber stripper 200 is clamped with the hole wall of the first communication hole 1111.

[0069] The clamping assembly 112 is arranged in the sealing cavity 111. The clamping assembly 112 is plate-shaped, a plurality of flow-through holes 1125 and a clamping through hole 1126 are arranged on the clamping assembly 112, the clamping assembly 112 is connected with the sealing cavity 111, the fiber stripper 200 passes through the clamping through hole 1126 and is clamped with the clamping through hole 1126, and the flow-through holes 1125 are used to pass the cooling medium. Further, a first sealing member 1124 is arranged, the first sealing member 1124 is sleeved on the fiber stripper 200 and located on the inner side of the first communication hole 1111. Such a structure makes the integrity of the first cooling chamber 110 higher, but since the clamping assembly 112 is arranged inside the sealing cavity 111, the difficulty of the manufacturing process of the sealing cavity 111 is increased.

[0070] The cooling medium is arranged in the sealing cavity 111, and the cooling medium is a liquid, such as plasma water, and the cooling medium can also be a gas, such as carbon dioxide, hydrogen, helium, and argon.

[0071] The second cooling chamber 120 comprises a connecting plate 121, a cooling channel 122, a cold source (not shown in the figure) and a pressure pump (not shown in the figure), the cooling channel 122 is provided with at least two third communication holes 1221, the sealing cavity 111 is also provided with at least two second communication holes 1112 which are arranged at intervals, and the number of the conductive chambers 130 is at least two. Each conductive chamber 130 is connected with one second communication hole 1112 and one third communication hole 1221, so that the cooling medium can flow between the sealing cavity 111 and the cooling channel 122.

[0072] In the embodiment, the number of the second communication holes 1112 and the third communication holes 1221 is two, and the number of the conductive chambers 130 is also two.

[0073] The pressure pump drives the cooling medium to flow between the sealing cavity 111 and the cooling channel 122, so that the heat of the optical fiber stripper 200 is transferred to the cooling medium, the cold source is connected with the cooling channel 122 to transfer the heat of the cooling medium, and the cooling efficiency of the optical fiber stripper 200 is improved.

[0074] The connecting plate 121 is provided with at least two positioning holes 1222, and each conductive chamber 130 is correspondingly provided with one positioning hole 1222.

[0075] The connecting plate 121 is detachably connected with the sealing cavity 111. As an example, the connecting plate 121 is also provided with at least two connecting holes 1223 which are arranged close to the positioning holes 1222, and the sealing cavity 111 is also provided with connecting columns 1113 which are screw-connected or clamped with the connecting holes 1223, so that the first cooling chamber 110 is fixed on the connecting plate 121, and one face of the sealing cavity 111 abuts against the connecting plate 121.

[0076] The cooling channel 122 is connected with the side of the connecting plate 121 which is away from the sealing cavity 111. Preferably, the cooling channel 122 abuts against the connecting plate 121, so that the cooling channel 122 cools the connecting plate 121, and then cools the sealing cavity 111, and the cooling efficiency of the optical fiber stripper 200 is further improved.

[0077] As shown in Figs. 1 and 2, the conductive chamber 130 comprises a shell 131, a filter part 132 and at least one third sealing member 133. Figure 3 Figure 7 As shown in Figs. 1 and 2, the conductive chamber 130 comprises a shell 131, a filter part 132 and at least one third sealing member 133.

[0078] The shell 131 is connected with the second communication hole 1112 and the third communication hole 1221 at both ends, so as to connect the second communication hole 1112 and the third communication hole 1221, and the connecting structure of the first cooling chamber 110 and the second cooling chamber 120 is simple and the overall volume is small.

[0079] ​Preferably, the shell 131 is integrally formed with the hole wall of the second communication hole 1112, thereby improving the integrity and sealing performance of the first cooling chamber 110.

[0080] Further, the shell 131 has two communication ports 1311 and a receiving cavity 1312, the receiving cavity 1312 is in communication with the two communication ports 1311, and the filter part 132 is arranged in the communication port 1311 and / or the receiving cavity 1312.

[0081] When the filter part 132 is arranged in the communication port 1311, the filter part 132 includes a filter screen covering the communication port 1311; when the filter part 132 is arranged in the receiving cavity 1312, the filter part 132 includes a filter core. In this way, impurities in the cooling medium can be filtered, preventing the impurities from adhering to the surface of the fiber stripper 200 and improving the cooling effect.

[0082] The communication chamber 130 includes at least one third sealing member 133 of the shell 131, the third sealing member 133 is sleeved outside the shell 131, and the third sealing member 133 is used to seal the gap between the shell 131 and the second communication hole 1112.

[0083] As an example, the number of third sealing members 133 is one, as described above, one face of the sealing cavity 111 abuts against the connecting plate 121, and the third sealing member 133 is clamped between the sealing cavity 111 and the connecting plate 121. The third sealing member 133 is a sealing ring used to seal the gap between the shell 131 and the positioning hole 1222, preventing the cooling medium from leaking.

[0084] It should be noted that, as described above, the sealing cavity 111 is in the shape of a hollow hexahedron, the bottom surface of the first cooling chamber 110 abuts against the connecting plate 121, and two of the side surfaces of the first cooling chamber 110 are used to pass through the fiber stripper 200. In the present embodiment, the communication chamber 130 is arranged on the bottom surface, and in other embodiments, the communication chamber 130 can also be arranged on the other two side surfaces that do not pass through the fiber stripper 200.

[0085] The number of communication chambers 130 is at least two, and multiple communication chambers 130 can be arranged at intervals on the same side surface, and can also be arranged on the above-mentioned other two side surfaces respectively.

[0086] The communication chamber 130 is connected to the positioning hole 1222 by a hose, so that the cooling medium circulates between the sealing cavity 111 and the cooling channel 122. Arranging the communication chamber 130 on the side surface has the advantage of being able to quickly determine the water leakage position compared to arranging the communication chamber 130 on the bottom surface, and is convenient for maintenance.

[0087] Further, when the through chamber 130 is arranged at the side, an adhesive layer can be arranged on the bottom surface of the first cooling chamber 110, so as to adhere the first cooling chamber 110 to the connecting plate 121, thereby fixing the first cooling chamber 110. The adhesive layer can be a heat-conductive silicone grease, which has not only adhesive properties but also good heat conduction properties, so that the heat generated by the fiber stripper 200 can be quickly transferred to the connecting plate 121, improving the cooling efficiency.

[0088] As shown in Figure 9 The present application also provides a manufacturing method of the fiber stripper cooling module 100, for manufacturing the fiber stripper cooling module 100 as described above, comprising:

[0089] Step S100: preparing the fiber stripper 200;

[0090] Step S200: obtaining two first clamping portions 1121, two second clamping portions 1122, two through chambers 130, a second cooling chamber 120, a sealing cavity 111, and six sealing members;

[0091] Step S300: passing one end of the fiber stripper 200 through one first communication hole 1111 and out of the other first communication hole 1111;

[0092] Step S400: sleeving two sealing members into two ends of the fiber stripper 200 respectively, and then sleeving two first clamping portions 1121 into two ends of the fiber stripper 200 respectively, and keeping the sealing members abutting against the first clamping portions 1121;

[0093] Step S500: sleeving two sealing members into two ends of the fiber stripper 200 respectively, and then sleeving two second clamping portions 1122 into two ends of the fiber stripper 200 respectively, so that the sealing members are clamped between the first clamping portions 1121 and the second clamping portions 1122;

[0094] Step S600: assembling the first clamping portions 1121 and the sealing cavity 111 at the first communication hole 1111;

[0095] Step S700: assembling the two second clamping portions 1122 with the two first clamping portions 1121 respectively;

[0096] Step S800: connecting one end of each through chamber 130 to the sealing cavity 111 at the second communication hole 1112, and connecting the other end of each through chamber 130 to the second cooling chamber 120 at the third communication hole 1221;

[0097] Step S900: sleeving the last two sealing members outside the through chambers 130, and clamping the last two sealing members between the sealing cavity 111 and the second cooling chamber 120.

[0098] The optical fiber stripper cooling module 100 provided by the application has good sealing performance, and can prevent the cooling medium in the sealed cavity 111 from being polluted. The optical fiber stripper cooling module 100 can be applied to the optical fiber stripper of a high-power or ultrahigh-power fiber laser or fiber amplifier.

[0099] The optical fiber stripper can effectively remove residual pump light in the cladding, so that signal light transmitted in the core is not affected, including signal light power and beam quality factor (M 2 ). Especially in a high-power laser, the power of the cladding light can reach hundreds or even tens of thousands of watts, and the temperature of the optical fiber stripper at the output end of the laser increases sharply and is extremely harmful. Therefore, when the cladding light in the optical fiber is removed by the optical fiber stripper, rapid and effective heat dissipation is required.

[0100] Please refer to Figure 10 , the preparation process of the optical fiber stripper 200 is as follows:

[0101] S10: A double-clad (or multi-clad) optical fiber of a specified length is cut off, and a coating layer of a corresponding length is removed according to requirements to form a bare fiber. The inner cladding surface of the bare fiber is made into a stripped optical fiber 210 through chemical etching;

[0102] S20: The bare fiber area on the stripped optical fiber 210 is ultrasonically cleaned with an organic solvent;

[0103] S30: The cleaned stripped optical fiber 210 is sleeved with a glass tube 220, and the glass tube 220 is fixed on the bare fiber area;

[0104] S40: The fixed stripped optical fiber 210 and the glass tube 220 are assembled;

[0105] S50: The optical fiber stripper 200 is prepared.

[0106] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0107] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary, and are not to be interpreted as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A cooling module for a fiber stripper, the cooling module comprising: The application relates to a fiber stripper. The fiber stripper comprises a first cooling chamber with a sealed cavity, two first communication holes are arranged on the sealed cavity, one end of the fiber stripper penetrates into one of the first communication holes and penetrates out of the other first communication hole, the hole walls of the two first communication holes are respectively connected with the two ends of the fiber stripper, a cooling medium is arranged in the sealed cavity, and at least two second communication holes are arranged on the sealed cavity. The fiber stripper further comprises a second cooling chamber with a cooling channel, and at least two third communication holes are arranged on the cooling channel. At least two conducting chambers are arranged, each of the conducting chambers is connected with one of the second communication holes and one of the third communication holes, and the cooling medium flows between the sealed cavity and the cooling channel. The first cooling chamber further comprises two clamping assemblies, and the two clamping assemblies are arranged at the two first communication holes.

2. The fiber stripper cooling module of claim 1, wherein, The clamping assembly is provided with a first through hole, the clamping assembly is connected with the hole wall of the first communication hole, and the fiber stripper penetrates into or penetrates out of the sealed cavity through the first through hole. The clamping assembly further comprises at least one first sealing piece, the first sealing piece is sleeved on the fiber stripper and abuts against the clamping assembly, and the first sealing piece is used for sealing the gap between the first through hole and the fiber stripper.

3. The fiber stripper cooling module of claim 2, wherein, The clamping assembly comprises a first clamping part and a second clamping part, a first groove is arranged on the first clamping part, the second clamping part is embedded in the first groove, the first clamping part is embedded in the first communication hole, and the first through hole penetrates through the first clamping part and the second clamping part.

4. The fiber stripper cooling module of claim 3, wherein, The number of the first sealing pieces is two, one of the first sealing pieces is clamped between the groove bottom of the first groove and the second clamping part, and the other first sealing piece abuts against one side of the first clamping part away from the second clamping part. The second cooling chamber further comprises a connecting plate, and the connecting plate is detachably connected with the sealed cavity.

5. The fiber stripper cooling module of any of claims 2-4, wherein, The connecting plate is provided with at least two positioning holes, and one of the positioning holes is arranged in each of the conducting chambers. The connecting plate is further provided with at least two connecting holes, and the connecting holes are arranged close to the positioning holes.

6. The fiber stripper cooling module of claim 5, wherein, The sealed cavity is further provided with a connecting column, and the connecting column is threadedly connected or clamped with the connecting hole. The second cooling chamber further comprises a cold source and a pressure pump, the pressure pump drives the cooling medium to flow between the sealed cavity and the cooling channel, and the cold source is connected with the cooling channel to transfer the heat of the cooling medium.

7. The fiber stripper cooling module of claim 5, wherein, The conducting chamber comprises a shell and at least one third sealing piece, the shell is connected with the second communication hole and the third communication hole, the third sealing piece is sleeved outside the shell, and the third sealing piece is used for sealing the gap between the shell and the second communication hole.

8. The fiber stripper cooling module of claim 5, wherein, When the number of the third sealing pieces is one, the third sealing piece is clamped between the sealed cavity and the connecting plate.

9. The fiber stripper cooling module of claim 8, wherein, The application further relates to a preparation method of the fiber stripper.

10. A method of making a fiber stripper cooling module for making a fiber stripper cooling module according to any one of claims 1 to 9, characterized in that, Two first clamping parts, two second clamping parts, two conducting chambers, a second cooling chamber, a sealed cavity and six sealing pieces are obtained. ​ ​ One end of the fiber stripper is inserted into one of the first communication holes and is pulled out from another of the first communication holes; Two of the seals are respectively sleeved on two ends of the fiber stripper, and two of the first clamping portions are respectively sleeved on the two ends of the fiber stripper, and the seals are abutted against the first clamping portions; Two other seals are respectively sleeved on the two ends of the fiber stripper, and two of the second clamping portions are respectively sleeved on the two ends of the fiber stripper, so that the seals are clamped between the first clamping portions and the second clamping portions; The first clamping portions are assembled at the first communication holes of the sealing cavity; The two second clamping portions are respectively assembled with the two first clamping portions; One end of each of the lead-through chambers is connected with the sealing cavity at the second communication holes, and the other end of each of the lead-through chambers is connected with the second cooling chamber at the third communication holes; The last two seals are respectively sleeved on the outer sides of the lead-through chambers, and the last two seals are clamped between the sealing cavity and the second cooling chamber.

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