An angle-adjustable sesam package structure

Abstract

The utility model relates to the technical field of laser equipment, concretely relates to an angle adjustable SESAM packaging structure, including optical fiber, positioner, pedestal, angle adjusting mechanism, locking connection mechanism and floating stage, through setting SESAM on floating stage, utilize angle adjusting mechanism to realize the adjustment of angle between floating stage and pedestal, thereby avoid the need of dismounting debugging after the installation of SESAM packaging structure, reduced the debugging difficulty, improved the debugging efficiency, simultaneously utilize locking connection mechanism to realize the stable connection between pedestal and floating stage, both can guarantee the realization of the spacing change between floating stage top surface and pedestal bottom surface under the action of angle adjusting mechanism, also can guarantee the reliable connection between pedestal and floating stage after the completion of debugging, avoid the shaking, satisfy the actual use demand.

Description

Technical Field

[0001] This utility model relates to the field of laser equipment technology, specifically to an adjustable angle SESAM packaging structure. Background Technology

[0002] Lasers with a pulse width of less than 15 ps, a maximum single pulse energy of less than 30 mJ, and a repetition frequency of more than 1 kHz (or less than 1 kHz for some lasers) are called ultrafast lasers. The packaging of SESAM is the key to the development of ultrafast lasers. For example, Chinese invention patent application CN112864788A provides a SESAM packaging structure, including an optical fiber, a ceramic ferrule, an adapter, and a base. By opening a central hole in the adapter, the end of the optical fiber extends into the central hole through the ceramic ferrule. The central hole is directly opposite the protrusion on the base. The SESAM is placed on the top of the protrusion, so that the ceramic ferrule and the SESAM on the protrusion can abut against each other when connected.

[0003] However, existing SESAM packaging structures suffer from angular inaccuracies due to factors such as processing and installation precision. They require disassembly for calibration after installation, which is inefficient and increases installation difficulty and time, thus failing to meet the installation requirements of SESAM packaging structures. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable angle SESAM packaging structure to solve the technical problems of cumbersome and inefficient installation and debugging of current SESAM packaging structures.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows:

[0006] An adjustable angle SESAM encapsulation structure includes an optical fiber, a positioner, a base, an angle adjustment mechanism, a locking connection mechanism, and a floating stage;

[0007] The SESAM is mounted on the top surface of the floating platform. The floating platform is connected to the base via a locking connection mechanism. The base is connected to the floating platform via an angle adjustment mechanism to adjust the angle between the top surface of the floating platform and the bottom surface of the base. The positioner is connected to the top surface of the base. The optical fiber passes through the positioner and the base and extends above the SESAM.

[0008] Further defined, the base is sleeved on the outside of the floating platform, the locking connection mechanism is connected between the base and the floating platform, the angle adjustment mechanism includes an adjustment stud, the base has an adjustment hole, the adjustment stud is threadedly connected to the adjustment hole, and the bottom of the adjustment stud extends through the adjustment hole to contact the top surface of the floating platform.

[0009] Furthermore, the number of angle adjustment mechanisms is multiple, and the multiple angle adjustment mechanisms are arranged circumferentially at equal intervals around the axis of the base, and the multiple angle adjustment mechanisms are all located on the periphery of the positioner.

[0010] Furthermore, the floating platform is provided with an adjustment groove, which is opposite to the adjustment hole, and the bottom of the adjustment stud extends through the adjustment hole into the adjustment groove.

[0011] Furthermore, the bottom of the adjusting stud is provided with a contact ball head, which is movably connected to the bottom of the adjusting stud, and the adjusting stud contacts the top edge of the adjusting groove through the contact ball head.

[0012] Further specifying, the locking connection mechanism includes a locking spring, one end of which is connected to the base, and the other end of which is connected to the floating platform. The locking spring is arranged along the axial direction of the base.

[0013] Further specifying, the locking connection mechanism also includes a first limiting pin and a second limiting pin. The base is provided with a first limiting groove and a first locking hole. The floating platform is provided with a second limiting groove and a second locking hole. The first limiting groove is located above the first locking hole, the first locking hole and the second locking hole are opposite each other, and the second limiting groove is located below the second locking hole. One end of the locking spring passes through the first locking hole and extends to the first limiting groove, and the other end of the locking spring passes through the second locking hole and extends to the second limiting groove. The locking spring is connected to the first limiting groove through the first limiting pin, and the locking spring is connected to the second limiting groove through the second limiting pin.

[0014] Furthermore, the number of the locking connection mechanisms is multiple, and the multiple locking connection mechanisms are arranged at equal intervals around the axis of the base.

[0015] Further specified, the base is provided with a positioning connecting platform, the positioning connecting platform is coaxially arranged with the base, and the side wall of the positioning connecting platform is provided with a positioning hole;

[0016] The locator is fitted with a locking nut, a positioning block is provided on the side of the locator, and a ceramic ferrule is provided at the bottom of the locator. The ceramic ferrule extends through the positioning connection platform to above the SESAM. The positioning block mates with the positioning hole, and the locking nut is threadedly connected to the positioning connection platform. The optical fiber extends through the locator and the ceramic ferrule to be directly opposite the reflective surface of the SESAM.

[0017] Further specifying, the positioning connection platform is provided with an elastic alignment sleeve, which is sleeved on the outside of the ceramic ferrule, and the ceramic ferrule extends through the elastic alignment sleeve to above SESAM.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model sets the SESAM on a floating platform and uses an angle adjustment mechanism to adjust the angle between the floating platform and the base, thereby avoiding the need for disassembly and debugging of the SESAM packaging structure after installation, reducing debugging difficulty and improving debugging efficiency; at the same time, a locking connection mechanism is used to achieve a stable connection between the base and the floating platform, which can not only ensure the change of the distance between the top surface of the floating platform and the bottom surface of the base under the action of the angle adjustment mechanism, but also ensure the reliable connection between the base and the floating platform after debugging, avoiding shaking and meeting the actual use requirements.

[0020] 2. This utility model utilizes the contact between the bottom of the adjusting stud and the top of the floating platform to achieve the rotation of the adjusting stud, thereby changing the distance between the corresponding position of the floating platform and the base, and causing the angle between the SESAM and the optical fiber to change, thus achieving efficient debugging; at the same time, it avoids interference between the floating platform and the adjusting stud when the bottom of the adjusting stud is threadedly connected to the floating platform, which affects the adjustment range and adjustment accuracy, thus meeting actual debugging needs and improving adjustment accuracy.

[0021] 3. This utility model uses a locking spring to connect the base and the floating platform, so that the floating platform can automatically adjust its position relative to the base as it moves away from or closer to the base, thus meeting different adjustment needs. A contact ball is provided at the bottom of the adjusting screw and cooperates with the adjusting groove to reduce friction, reduce adjustment difficulty, and improve service life. At the same time, the adjustment range of the floating platform is limited to ensure stable and reliable adjustment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the adjustable angle SESAM packaging structure of this utility model;

[0023] Figure 2 This is an exploded view of the adjustable angle SESAM packaging structure of this utility model;

[0024] Figure 3 This is a bottom cross-sectional view of the adjustable angle SESAM packaging structure of this utility model;

[0025] In the diagram, 10-optical fiber; 20-positioner; 21-locking nut; 22-positioning block; 23-ceramic ferrule; 30-base; 31-adjusting hole; 32-first limiting groove; 33-first locking hole; 34-positioning connecting platform; 35-elastic centering sleeve; 36-positioning hole; 40-angle adjustment mechanism; 41-adjusting stud; 42-contact ball head; 43-threaded sleeve; 50-locking connecting mechanism; 51-locking tension spring; 52-first limiting pin; 53-second limiting pin; 60-floating platform; 61-adjusting groove; 62-second limiting groove; 63-second locking hole; 70-SESAM. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Example 1

[0031] refer to Figure 1 and Figure 2This utility model provides an adjustable angle SESAM packaging structure, including an optical fiber 10, a positioner 20, a base 30, an angle adjustment mechanism 40, a locking connection mechanism 50, and a floating platform 60. The SESAM 70 is mounted on the top surface of the floating platform 60. The floating platform 60 is connected to the base 30 via the locking connection mechanism 50. The base 30 is connected to the floating platform 60 via the angle adjustment mechanism 40. The positioner 20 is connected to the base 30. The optical fiber 10 extends through the positioner 20 and the base 30 to above the SESAM 70. The angle adjustment mechanism 40 adjusts the deflection of the floating platform 60, enabling the floating platform 60 to adjust the angle of the SESAM 70 relative to the optical fiber 10. This allows for debugging while avoiding repeated disassembly and reassembly of the base 30, reducing debugging difficulty and improving debugging efficiency.

[0032] Specifically, during actual installation, the base 30 is connected to the connecting end face. The base 30 is fitted on the outside of the floating platform 60, and the bottom surface of the floating platform 60 is located above the bottom surface of the base 30, so that the floating platform 60 and the connecting end face can be reserved for debugging after the base 30 is installed.

[0033] Meanwhile, in order to ensure that the floating platform 60 can both follow the angle adjustment mechanism 40 to achieve angle adjustment and maintain stability after the floating platform 60 is debugged, it is preferable that the locking connection mechanism 50 is connected between the base 30 and the floating platform 60, and the floating platform 60 and the base 30 are elastically connected.

[0034] For further explanation, please refer to Figure 2 and Figure 3 The angle adjustment mechanism 40 includes an adjustment stud 41, and an adjustment hole 31 is provided on the base 30. The adjustment stud 41 is threadedly connected to the adjustment hole 31. The bottom end of the adjustment stud 41 extends through the adjustment hole 31 to the top surface of the floating platform 60 and contacts the top surface of the floating platform 60. By rotating the adjustment stud 41, the floating platform 60 can be pushed away from the base 30 to achieve angle deflection of the floating platform 60; or the floating platform 60 can be automatically moved closer to the base 30 as the adjustment stud 41 is withdrawn under the action of the locking connection mechanism 50, so as to meet different angle adjustment requirements.

[0035] For ease of maintenance and disassembly, the preferred angle adjustment mechanism 40 also includes a threaded sleeve 43, which mates with the adjustment hole 31, and the adjustment stud 41 is threadedly connected to the threaded sleeve 43.

[0036] Preferably, there are multiple angle adjustment mechanisms 40, which are arranged circumferentially at equal intervals around the axis of the base 30, so that the adjustment accuracy of the floating platform 60 can be increased by different angle adjustment mechanisms 40, and the debugging accuracy and reliability of SESAM70 can be improved; preferably, there are three angle adjustment mechanisms 40, and all three angle adjustment mechanisms 40 are located on the periphery of the positioner 20.

[0037] To prevent the angle adjustment mechanism 40 from sliding to the outside of the floating platform 60 due to excessive adjustment range, it is preferable to open an adjustment groove 61 on the floating platform 60. The adjustment groove 61 is located on the outside of the SESAM70. The adjustment groove 61 corresponds one-to-one with the adjustment stud 41. The bottom of the adjustment stud 41 extends through the threaded sleeve 43 into the adjustment groove 61 and contacts the adjustment groove 61, thereby limiting the sliding range of the adjustment stud 41 and ensuring stable and reliable debugging.

[0038] Preferably, to prevent the bottom of the adjusting stud 41 from sliding in the adjusting groove 61 and causing wear to the adjusting groove 61, thus reducing its service life, and to improve the stability of the adjusting stud 41 sliding in the adjusting groove 61, a contact ball head 42 is provided at the bottom of the adjusting stud 41. The contact ball head 42 is movably connected to the adjusting stud 41, and the bottom of the adjusting stud 41 is sleeved on the outside of the contact ball head 42. The adjusting stud 41 is slidably connected to the top edge of the adjusting groove 61 through the contact ball head 42, thereby improving its service life, ensuring stable adjustment, and improving the adjustment accuracy.

[0039] To further explain, the locking connection mechanism 50 includes a locking spring 51. One end of the locking spring 51 is connected to the base 30, and the other end of the locking spring 51 is connected to the floating platform 60. The locking spring 51 is arranged along the axial direction of the base 30, so that when the adjusting stud 41 pushes the floating platform 60 to deflect, it overcomes the tension of the locking spring 51, ensuring that the adjustment of the floating platform 60 is more precise and stable. At the same time, the tension of the locking spring 51 ensures that the floating platform 60 remains stable relative to the base 30 after the adjustment is completed.

[0040] To further explain, in order to prevent the locking spring 51 from deflecting with the floating platform 60, which would increase the difficulty of debugging and reduce the service life of the locking spring 51, the locking connection mechanism 50 preferably also includes a first limiting pin 52 and a second limiting pin 53, so that both ends of the locking spring 51 are respectively sleeved on the first limiting pin 52 and the second limiting pin 53. One end of the locking spring 51 is movably connected to the base 30 through the first limiting pin 52, and the other end of the locking spring 51 is movably connected to the floating platform 60 through the second limiting pin 53.

[0041] Specifically, the base 30 is provided with a first limiting groove 32 and a first locking hole 33, and the floating platform 60 is provided with a second limiting groove 62 and a second locking hole 63. The first limiting groove 32 is located above the first locking hole 33, the first locking hole 33 is opposite to the second locking hole 63, and the second limiting groove 62 is located below the second locking hole 63.

[0042] During connection, one end of the locking spring 51 extends through the first locking hole 33 to the first limiting groove 32, and the other end of the locking spring 51 extends through the second locking hole 63 to the second limiting groove 62. The locking spring 51 is connected to the first limiting groove 32 through the first limiting pin 52, and the locking spring 51 is connected to the second limiting groove 62 through the second limiting pin 53.

[0043] Preferably, there are multiple locking connection mechanisms 50, which are equally spaced around the axis of the base 30 to ensure the stability and reliability of the angle adjustment of the floating platform 60; more preferably, the number of locking connection mechanisms 50 is the same as the number of angle adjustment mechanisms 40, in which case there are three locking connection mechanisms 50, and the angle adjustment mechanisms 40 and locking connection mechanisms 50 are equally spaced.

[0044] Example 2

[0045] Based on the adjustable angle SESAM packaging structure described in Embodiment 1, this embodiment provides an adjustable angle SESAM packaging structure. The SESAM 70 is coaxially arranged with the floating platform 60. A positioning connecting platform 34 is provided on the top surface of the base 30. The positioning connecting platform 34 is coaxially arranged with the base 30. An elastic centering sleeve 35 is provided inside the positioning connecting platform 34. The elastic centering sleeve 35 cooperates with the base 30 and is coaxially arranged with the base 30. The bottom end of the elastic centering sleeve 35 is opposite to the SESAM 70.

[0046] The positioning connection platform 34 has a positioning hole 36 on its side wall. The bottom side of the positioner 20 is provided with a positioning block 22 that mates with the positioning hole 36. The bottom of the positioner 20 is provided with a ceramic insert 23. A locking nut 21 is provided above the positioning block 22 and is fitted onto the positioner 20.

[0047] During connection, the positioner 20 extends into the positioning connection platform 34. At this time, the ceramic insert 23 passes through the elastic centering sleeve 35 and approaches the reflective surface of the SESAM70. The positioning block 22 engages with the positioning hole 36, and the locking nut 21 is sleeved on the outside of the positioning connection platform 34 and threadedly connected to the positioning connection platform 34.

[0048] Example 3

[0049] Based on the adjustable angle SESAM packaging structure described in Embodiment 1 and / or Embodiment 2, this embodiment provides an adjustable angle SESAM packaging structure adjustment method, including the following steps:

[0050] S1. Complete the installation of the adjustable angle SESAM package structure;

[0051] S2. Determine whether the angle between the optical axis of fiber 10 and the reflective surface of SESAM70 meets the requirements. If yes, end; otherwise, proceed to step S3.

[0052] S3. Change the distance between the corresponding position of the base 30 and the top surface of the floating platform 60 by adjusting the angle adjustment mechanism 40, change the angle between the bottom surface of the base 30 and the top surface of the floating platform 60, and repeat step S2.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable-angle SESAM packaging structure, characterized in that, It includes an optical fiber (10), a positioner (20), a base (30), an angle adjustment mechanism (40), a locking connection mechanism (50), and a floating platform (60). The SESAM (70) is mounted on the top surface of the floating platform (60). The floating platform (60) is connected to the base (30) via a locking connection mechanism (50). The base (30) is connected to the floating platform (60) via an angle adjustment mechanism (40) to adjust the angle between the top surface of the floating platform (60) and the bottom surface of the base (30). The locator (20) is connected to the top surface of the base (30). The optical fiber (10) passes through the locator (20) and the base (30) and extends above the SESAM (70).

2. The adjustable angle SESAM packaging structure according to claim 1, characterized in that, The base (30) is sleeved on the outside of the floating platform (60), and the locking connection mechanism (50) is connected between the base (30) and the floating platform (60). The angle adjustment mechanism (40) includes an adjustment stud (41). An adjustment hole (31) is provided on the base (30). The adjustment stud (41) is threadedly connected to the adjustment hole (31). The bottom of the adjustment stud (41) extends through the adjustment hole (31) to contact the top surface of the floating platform (60).

3. The adjustable angle SESAM packaging structure according to claim 2, characterized in that, The number of angle adjustment mechanisms (40) is multiple, and the multiple angle adjustment mechanisms (40) are arranged circumferentially at equal intervals around the axis of the base (30), and the multiple angle adjustment mechanisms (40) are all located on the periphery of the positioner (20).

4. The adjustable angle SESAM packaging structure according to claim 3, characterized in that, The floating platform (60) is provided with an adjustment groove (61), which is opposite to the adjustment hole (31). The bottom of the adjustment stud (41) extends through the adjustment hole (31) into the adjustment groove (61).

5. The adjustable angle SESAM packaging structure according to claim 4, characterized in that, The bottom of the adjusting stud (41) is provided with a contact ball head (42), which is movably connected to the bottom of the adjusting stud (41). The adjusting stud (41) contacts the top edge of the adjusting groove (61) through the contact ball head (42).

6. The adjustable angle SESAM packaging structure according to claim 2, characterized in that, The locking connection mechanism (50) includes a locking spring (51), one end of which is connected to the base (30), and the other end of which is connected to the floating platform (60). The locking spring (51) is arranged along the axial direction of the base (30).

7. The adjustable angle SESAM packaging structure according to claim 6, characterized in that, The locking connection mechanism (50) further includes a first limiting pin (52) and a second limiting pin (53). The base (30) has a first limiting groove (32) and a first locking hole (33). The floating platform (60) has a second limiting groove (62) and a second locking hole (63). The first limiting groove (32) is located above the first locking hole (33), and the first locking hole (33) is opposite to the second locking hole (63). (62) Located below the second locking hole (63), one end of the locking spring (51) extends through the first locking hole (33) to the first limiting groove (32), and the other end of the locking spring (51) extends through the second locking hole (63) to the second limiting groove (62). The locking spring (51) is connected to the first limiting groove (32) through the first limiting pin (52), and the locking spring (51) is connected to the second limiting groove (62) through the second limiting pin (53).

8. The adjustable angle SESAM packaging structure according to claim 7, characterized in that, The number of locking connection mechanisms (50) is multiple, and the multiple locking connection mechanisms (50) are arranged at equal intervals around the axis of the base (30).

9. The adjustable angle SESAM packaging structure according to any one of claims 1 to 8, characterized in that, The base (30) is provided with a positioning connecting platform (34), which is coaxially arranged with the base (30), and a positioning hole (36) is provided on the side wall of the positioning connecting platform (34). The locator (20) is fitted with a locking nut (21), and a positioning block (22) is provided on the side end of the locator (20). A ceramic ferrule (23) is provided at the bottom end of the locator (20). The ceramic ferrule (23) extends through the positioning connection platform (34) to the top of the SESAM (70). The positioning block (22) cooperates with the positioning hole (36). The locking nut (21) is threadedly connected to the positioning connection platform (34). The optical fiber (10) extends through the locator (20) and the ceramic ferrule (23) to be directly opposite the reflective surface of the SESAM (70).

10. The adjustable angle SESAM packaging structure according to claim 9, characterized in that, The positioning connection platform (34) is provided with an elastic centering sleeve (35), which is sleeved on the outside of the ceramic ferrule (23). The ceramic ferrule (23) extends through the elastic centering sleeve (35) to above SESAM (70).

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