High-precision laser amplifier

Abstract

The utility model discloses a high-precision laser amplifier, which comprises a laser amplifier main body, the laser amplifier main body comprises a main amplifier body, two ends of the main amplifier body are respectively provided with an input end and an output end, and the laser amplifier main body is also provided with an anti-drop reinforcing mechanism; through the design of an anti-drop reinforcing mechanism, after the end part of an optical fiber penetrates through an external thread rotating head and is clamped in an access end, when the external thread rotating head is screwed into an internal thread fixing cylinder, the inner surface of an arc-shaped surface body extrudes and contacts an arc-shaped push plate and drives the arc-shaped push plate to stably control and move towards the inner side; the arc-shaped push plate stably moves to drive the clamping plate to be clamped and fixed to the end of the optical fiber, the end of the optical fiber can be conveniently reinforced, clamped and installed, the optical fiber is not prone to falling off when being pulled after being installed, and the reinforced fixity of the laser amplifier body during installation and use is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laser amplifier, concretely relates to a high accuracy laser amplifier. BACKGROUND

[0002] In many practical occasions, we need high-quality laser beams, that is, single transverse mode, single longitudinal mode laser beams, but the output power or energy of the laser working in single mode is not too large, because the cavity loss is large, and the mode volume is small, in order to improve the power or energy, laser amplifier needs to be used, and the existing laser amplifier refers to the device using the stimulated radiation of light to amplify the energy (power) of light, which can obtain high laser energy or power while maintaining the quality of laser;

[0003] According to the high-power ultrashort pulse laser amplifier disclosed in the authorized patent application No. 202021349503.7, the existing laser amplifier is directly clamped and installed with the input optical fiber at the access end, and the output optical fiber is clamped and installed at the output end, and the end of the optical fiber is directly clamped and installed by the clamp during installation, so that it is not convenient to reinforce and install after installation, and when the installed optical fiber line is long and exposed to external use and subjected to tension, the end of the optical fiber is easy to separate from the laser amplifier, thereby affecting the reinforcing and fixing of the optical fiber during installation and use of the laser amplifier, therefore, the utility model provides a high-precision laser amplifier. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of high-precision laser amplifier, to solve the problem that the end of optical fiber is directly clamped and installed by clamp in the above background art, so that it is not convenient to reinforce and install after installation, and when the installed optical fiber line is long and exposed to external use and subjected to tension, the end of the optical fiber is easy to separate from the laser amplifier.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-precision laser amplifier, including laser amplifier main body, the laser amplifier main body includes main amplifier body, the both ends of the main amplifier body are respectively provided with access end and output end, the laser amplifier main body is also provided with:

[0006] Anti-disengagement reinforcing mechanism, and the anti-disengagement reinforcing mechanism includes fixed installation component, the inner surface of the fixed installation component is located at the end of main amplifier body and is provided with clamping fixed component, the bottom end of the clamping fixed component is provided with sliding control component;

[0007] Dry dehumidification mechanism, and the dry dehumidification mechanism includes dry dehumidification component arranged on the outer surface of main amplifier body, the upper surface of the dry dehumidification component is provided with inlet and outlet component.

[0008] Preferably, the inside of the main amplifier body is sequentially provided with a power pump source, a pump combiner, a high-reflectivity fiber grating, a transmission fiber, a reflection fiber grating, a focusing lens, an optical element and a solid laser gain block.

[0009] Preferably, the fixed mounting assembly comprises an internally-threaded fixing cylinder fixedly mounted at the end of the main amplifier body at the outer surface of the access end and the output end by screws, and the end of the internally-threaded fixing cylinder is threadedly rotated with an externally-threaded rotating head.

[0010] Preferably, the clamping fixing assembly comprises arc-shaped push plates arranged at the two sides of the inner surface of the internally-threaded fixing cylinder, and the end of each arc-shaped push plate is integrally provided with a clamping plate, and the inner surface edge of the externally-threaded rotating head is integrally formed with an arc-shaped surface body, and the arc-shaped surface body is in extrusion contact with the outer surface of the arc-shaped push plate.

[0011] Preferably, the sliding control assembly comprises a sliding groove opened at the two sides of the access end at the end of the main amplifier body, and the inside of the sliding groove is provided with a sliding block, and the end of the sliding block is fixedly connected with the bottom end of the arc-shaped push plate by screws.

[0012] Preferably, the drying and dehumidifying assembly comprises a cover plate integrally arranged on the outer surface of the main amplifier body, and the inner surface of the cover plate is formed with a storage groove with the outer surface of the main amplifier body, and the top end and the two sides of the inside of the main amplifier body are both provided with air permeable holes, and the air permeable holes are in communication with the inside of the storage groove.

[0013] Preferably, the access assembly comprises a connecting port opened at one end of the upper surface of the cover plate, and the inside of the connecting port is closed with a protective plate, and the two ends of the protective plate are provided with locking bolts, and the two ends of the connecting port are provided with internally-threaded holes on the surface of the cover plate, and the end of the locking bolt is matched with the internal structure of the internally-threaded hole.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] By designing the anti-falling reinforcing mechanism, when the end of the optical fiber is penetrated into the inside of the access end and the externally-threaded rotating head is screwed into the internally-threaded fixing cylinder, the arc-shaped surface body is in extrusion contact with the arc-shaped push plate and drives the arc-shaped push plate to move stably inward, so that the arc-shaped push plate moves stably and drives the clamping plate to clamp and fix the end of the optical fiber, thereby facilitating the reinforcing and clamping installation of the end of the optical fiber, and preventing the optical fiber from falling off when the optical fiber is subjected to tension after installation, and improving the reinforcing fixation of the laser amplifier body during installation and use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the present application is shown in the figure;

[0017] Figure 2It is the side sectional view structural schematic diagram of the utility model;

[0018] Figure 3 It is the arc-shaped push plate, access end and main amplifier body local sectional view structural schematic diagram of the utility model;

[0019] Figure 4 It is the utility model Figure 3 The enlarged structure schematic diagram of A part in the utility model;

[0020] Figure 5 It is the main amplifier body, cover plate and storage groove sectional view structural schematic diagram of the utility model;

[0021] Figure 6 It is the utility model Figure 5 The enlarged structure schematic diagram of B part in the utility model;

[0022] In the drawing: 100, laser amplifier main body;101, main amplifier body;1011, power pump source;1012, pump beam combiner;1013, high reflectivity fiber grating;1014, transmission fiber;1015, reflective fiber grating;1016, focusing lens;1017, optical element;1018, solid laser gain block;102, access end;1021, internal thread fixing cylinder;1022, external thread rotating head;1023, arc-shaped push plate;1024, clamping plate;1025, arc-shaped surface body;1026, sliding block;1027, sliding groove;103, output end;104, cover plate;1041, protection plate;1042, internal thread hole;1043, air hole;1044, storage groove;1045, connecting port;1046, locking bolt. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0024] Please refer to Figures 1 to 6The utility model provides a technical scheme: a kind of high-precision laser amplifier, including laser amplifier main body 100, laser amplifier main body 100 includes main amplifier body 101, the both ends of main amplifier body 101 are provided with access end 102 and output end 103 respectively, the inside of main amplifier body 101 is sequentially provided with power pump source 1011, pump combiner 1012, high reflectivity fiber grating 1013, transmission fiber 1014, reflective fiber grating 1015, focusing lens 1016, optical element 1017 and solid laser gain block 1018, laser amplifier main body 100 installs and uses, output fiber is accessed laser amplifier by access end 102, after that, laser is emitted, laser is transmitted to pump combiner 1012 after entering power pump source 1011, after pump combiner 1012 processes laser, laser is transmitted to high reflectivity fiber grating 1013 again and is transmitted to reflective fiber grating 1015 by transmission fiber 1014 and is handled, after that, laser is transmitted to focusing lens 1016 and is handled by optical element 1017, finally, laser is guided out from the output fiber of access after gain by solid laser gain block 1018, laser amplifier main body 100 is also provided with:

[0025] Anti-disengagement reinforcing mechanism, and the anti-disengagement reinforcing mechanism includes fixed mounting assembly, the inner surface of fixed mounting assembly is located at the end of main amplifier body 101 and is provided with clamping fixing assembly, the bottom of clamping fixing assembly is provided with sliding control assembly, after input fiber and output fiber are respectively clamped and installed in the inner part of access end 102 and output end 103, input fiber and output fiber are reinforced and prevented from disengaging by anti-disengagement reinforcing mechanism.

[0026] In order to facilitate rotation and reinforcement by fixed mounting assembly, in the embodiment, preferably, the fixed mounting assembly includes an inner threaded fixed cylinder 1021 fixedly installed on the outer surface of the access end 102 and the output end 103 at the end of the main amplifier body 101 by screws, and an outer threaded rotating head 1022 is threadedly rotated at the end of the inner threaded fixed cylinder 1021, so that the arc-shaped push plate 1023 can be extruded and reinforced by rotating the outer threaded rotating head 1022 inside the inner threaded fixed cylinder 1021.

[0027] In order to facilitate the fiber carding in the access end 102 and the end of the output end 103 after the reinforcement installation, in the embodiment, preferably, the clamping and fixing assembly includes the arc-shaped push plate 1023 arranged on both sides of the inner threaded fixing cylinder 1021, the end of the arc-shaped push plate 1023 is integrally provided with the clamping plate 1024, the inner surface edge of the outer threaded rotating head 1022 is integrally formed with the arc-shaped surface body 1025, and the arc-shaped surface body 1025 is in extrusion contact with the outer surface of the arc-shaped push plate 1023. When the outer threaded rotating head 1022 is rotated after the fiber carding, the inner surface of the arc-shaped surface body 1025 extrudes and moves the surface of the arc-shaped push plate 1023, which facilitates the movement of the clamping plate 1024 clamped and fixed on the end of the fiber for reinforcement installation.

[0028] In order to facilitate the stable movement of the arc-shaped push plate 1023 through sliding control, in the embodiment, preferably, the sliding control assembly includes the sliding groove 1027 arranged on both sides of the access end 102 and located at the end of the main amplifier body 101, the sliding groove 1027 is provided with the sliding block 1026, and the end of the sliding block 1026 is fixed with the bottom end of the arc-shaped push plate 1023 through a screw. When the arc-shaped push plate 1023 moves, the sliding block 1026 is controlled to slide in the sliding groove 1027, so that the arc-shaped push plate 1023 is stably controlled to move.

[0029] The drying and dehumidifying mechanism includes the drying and dehumidifying assembly arranged on the outer surface of the main amplifier body 101, and the upper surface of the drying and dehumidifying assembly is provided with the inlet and outlet assembly. When the laser amplifier main body 100 is used after installation, the moisture entering the inside of the main amplifier body 101 through the gap is sucked and treated by the drying and dehumidifying mechanism, so that the moisture is conveniently removed and measured through the focusing lens 1016 with high precision.

[0030] In order to facilitate the moisture entering the inside of the main amplifier body 101 to be sucked and treated by the drying and dehumidifying assembly, in the embodiment, preferably, the drying and dehumidifying assembly includes the cover plate 104 integrally arranged on the outer surface of the main amplifier body 101. The inner surface of the cover plate 104 and the outer surface of the main amplifier body 101 form the storage groove 1044, the top end and both sides of the main amplifier body 101 are provided with the air vent 1043, and the air vent 1043 is in communication with the inside of the storage groove 1044. After the drying agent particles are stored in the inside of the storage groove 1044, the moisture entering the inside of the main amplifier body 101 is sucked by the drying agent through the air vent 1043, so that the damage caused by the moisture entering the inside is avoided.

[0031] In order to facilitate the storage of the inside of the storage tank 1044 through the access assembly, the access assembly includes a connecting port 1045 opened at one end of the upper surface of the cover plate 104, and the inside of the storage tank 1044 can be stored with a proper amount of desiccant particles through the connecting port 1045. The inside of the connecting port 1045 is closed with a protective plate 1041, and the two ends of the protective plate 1041 are provided with locking bolts 1046. The two ends of the connecting port 1045 are provided with internally threaded holes 1042 on the surface of the cover plate 104, and the end of the locking bolt 1046 is matched with the internal structure of the internally threaded hole 1042. After storage, the protective plate 1041 is closed in the inside of the connecting port 1045, and the locking bolt 1046 is embedded in the internally threaded hole 1042 to fix the protective plate 1041.

[0032] The working principle and use process of the high-precision laser amplifier: in use, the input optical fiber is clamped and installed at the end of the access end 102, and the output optical fiber is clamped and installed at the end of the output end 103, so that the laser amplifier main body 100 is conveniently installed and used. When in use, the output optical fiber is connected to the laser amplifier through the access end 102, and then the laser is emitted. After the laser enters the power pump source 1011, it is transmitted to the pump combiner 1012. After the pump combiner 1012 processes the laser, the laser is transmitted to the high-reflectivity fiber grating 1013 and then transmitted to the reflective fiber grating 1015 through the transmission fiber 1014 for processing. Then the laser is transmitted to the focusing lens 1016 and processed by the optical element 1017. Finally, the laser is guided out from the connected output optical fiber after being amplified by the solid laser gain block 1018;

[0033] Then when the laser amplifier main body 100 is installed and used, the desiccant particles larger than the diameter of the air hole 1043 are introduced into the inside of the storage tank 1044 through the connecting port 1045, and the inside of the storage tank 1044 is filled with the desiccant particles. The protective plate 1041 is closed on the surface of the connecting port 1045, and the locking bolt 1046 is embedded in the inside of the internally threaded hole 1042 to fix the protective plate 1041 on the surface of the connecting port 1045. When the laser amplifier main body 100 is installed and used, the inside of the main amplifier body 101 can be conveniently and accurately dried and dehumidified.

[0034] Finally, when the laser amplifier body 100 is installed and used, the end of the input optical fiber and the output optical fiber can be inserted into the access end 102 and the output end 103 respectively, the end of the optical fiber is penetrated into the inside of the external thread rotating head 1022, and then the end of the optical fiber is clamped in the inside of the access end 102 or the output end 103. After clamping and installing, the external thread rotating head 1022 is rotated in the inside of the internal thread fixing cylinder 1021, the external thread rotating head 1022 is in contact with the arc-shaped push plate 1023 by extruding the inner surface of the arc-shaped surface body 1025 when rotating in, and the arc-shaped push plate 1023 is driven to move inward, at the same time, the bottom end of the arc-shaped push plate 1023 drives the sliding block 1026 to slide in the inside of the sliding groove 1027 to control, so that the stable movement of the arc-shaped push plate 1023 drives the clamping plate 1024 to clamp and fix the end of the optical fiber, which is convenient for reinforcing and clamping the end of the optical fiber, and the optical fiber is not easy to fall off when the optical fiber is subjected to tension after installation, and the laser amplifier body 100 is still stably installed and used, and the reinforcing and fixing property of the laser amplifier body 100 during installation and use is improved.

[0035] Although the embodiments of the present application have been shown and described in detail (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser amplifier, comprising a laser amplifier body (100), wherein the laser amplifier body (100) includes a main amplifier body (101), and the main amplifier body (101) has an input terminal (102) and an output terminal (103) respectively disposed at its two ends, characterized in that: The laser amplifier body (100) is also provided with: The anti-detachment reinforcement mechanism includes a fixed installation component, wherein a clamping and fixing component is provided on the inner surface of the fixed installation component at the end of the main amplifier body (101), and a sliding control component is provided at the bottom end of the clamping and fixing component; The drying and dehumidifying mechanism includes a drying and dehumidifying component disposed on the outer surface of the main amplifier body (101), and the upper surface of the drying and dehumidifying component is provided with an inlet and outlet component.

2. The high-precision laser amplifier according to claim 1, characterized in that: The main amplifier body (101) is equipped with, in sequence, a power pump source (1011), a pump combiner (1012), a high reflectivity fiber grating (1013), a transmission fiber (1014), a reflection fiber grating (1015), a focusing lens (1016), an optical element (1017), and a solid-state laser gain block (1018).

3. A high-precision laser amplifier according to claim 1, characterized in that: The fixed mounting assembly includes an internally threaded fixing cylinder (1021) fixedly mounted on the outer surface of the input end (102) and the output end (103) of the main amplifier body (101) by screws, and the end of the internally threaded fixing cylinder (1021) is threaded with an externally threaded rotating head (1022).

4. A high-precision laser amplifier according to claim 3, characterized in that: The clamping and fixing assembly includes arc-shaped push plates (1023) disposed on both sides of the inner surface of the internal threaded fixing cylinder (1021). The ends of the arc-shaped push plates (1023) are integrally provided with clamping plates (1024). The inner surface edge of the external threaded rotating head (1022) is integrally formed with an arc-shaped surface (1025), and the arc-shaped surface (1025) is in extrusion contact with the outer surface of the arc-shaped push plates (1023).

5. A high-precision laser amplifier according to claim 4, characterized in that: The sliding control component includes a slide groove (1027) on both sides of the access end (102) located at the end of the main amplifier body (101). A slider (1026) is provided inside the slide groove (1027), and the end of the slider (1026) is fixed to the bottom of the arc-shaped push plate (1023) by screws.

6. A high-precision laser amplifier according to claim 1, characterized in that: The drying and dehumidifying assembly includes a cover plate (104) integrally disposed on the outer surface of the main amplifier body (101). The inner surface of the cover plate (104) and the outer surface of the main amplifier body (101) form a storage groove (1044). Ventilation holes (1043) are provided at the top and both sides of the interior of the main amplifier body (101), and the ventilation holes (1043) are connected to the interior of the storage groove (1044).

7. A high-precision laser amplifier according to claim 6, characterized in that: The inlet / outlet assembly includes a connection port (1045) opened at one end of the upper surface of the cover plate (104). A protective plate (1041) is closed inside the connection port (1045). Locking bolts (1046) are provided at both ends of the protective plate (1041). Internal threaded holes (1042) are opened at both ends of the connection port (1045) on the surface of the cover plate (104), and the ends of the locking bolts (1046) match the internal structure of the internal threaded holes (1042).

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