CN215732666U

CN215732666U - High-power high-beam-quality 1064nm/1063nm dual-wavelength laser

Info

Publication number: CN215732666U
Application number: CN202122147870.XU
Authority: CN
Inventors: 贾养春; 刘国宏
Original assignee: Nanjing Baifu Laser Technology Co ltd
Current assignee: Nanjing Baifu Laser Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-01
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a high-power high-beam-quality 1064nm/1063nm dual-wavelength laser, which comprises a total reflection mirror and a protective shell, wherein an Nd: YAG crystal and Nd: YLF crystal, and Nd: the bottom end of YAG crystal is provided with 808nmBar strips, the Nd: the bottom end of the YLF crystal was provided with 797nmBar strips. The utility model is provided with an Nd: YAG crystal and Nd: YLF crystal, Nd by high power pumping: positive thermal lens effect of YAG and Nd under high power pumping: negative thermal lens effect of YLF, Nd pumped with 808nm pump source simultaneously in one cavity: YAG side pump module and 792 pump source pumped Nd: and the YLF side pump modules and the two pump modules respectively generate a positive thermal lens effect and a negative thermal lens effect under high-power pumping, and simultaneously can control the focal length of the thermal lens by respectively controlling the pumping power, so that the heat dissipation lens effect is mutually reduced, and high-power and high-beam-quality laser output is achieved.

Description

High-power high-beam-quality 1064nm/1063nm dual-wavelength laser

Technical Field

The utility model relates to the technical field of dual-wavelength lasers, in particular to a high-power and high-beam-quality 1064nm/1063nm dual-wavelength laser.

Background

A conventional 1064nm side pump laser is mainly composed of an all-reflecting mirror, a pump source and a laser crystal Nd: the side pump module and the output mirror composed of YAG3 can generally realize high-power 1064nm output, but the cavity length is longer, and the high-power pumping has serious thermal effect, so that the quality of light beams is poorer when the high-power pumping is carried out, and the output power is easy to be saturated.

Therefore, we propose a high-power high-beam-quality 1064nm/1063nm dual-wavelength laser to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-power and high-beam-quality 1064nm/1063nm dual-wavelength laser.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high beam quality 1064nm/1063nm dual wavelength laser of high-power, includes total reflection mirror and protecting crust, the inside of protecting crust is provided with Nd: YAG crystal and Nd: YLF crystal, and Nd: the bottom end of YAG crystal is provided with 808nmBar strips, the Nd: the bottom end of the YLF crystal was provided with 797nmBar strips.

Preferably, the left side surface at the protecting crust is installed to the full reflection mirror, the right side fixed surface of protecting crust is connected with the limiting plate, and the limiting plate is provided with two sets ofly, two sets of connect through the movable plate between the limiting plate, and the both sides surface symmetry cover of movable plate is equipped with the C shape stationary blade, the outside of C shape stationary blade is inside to be inserted and is equipped with the inserted bar, and the surface cover of inserted bar is equipped with the spring, the symmetrical fixed mounting about the surface of movable plate has first output mirror and second output mirror.

Preferably, the inner side surface of the limiting plate is provided with a sliding groove corresponding to the C-shaped fixing piece, the C-shaped fixing piece is inserted into the sliding groove, and the C-shaped fixing piece is in sliding connection with the limiting plate.

Preferably, the two side surfaces of the limiting plate are symmetrically provided with hole grooves corresponding to the insertion rods, the insertion rods are inserted in the hole grooves, and the insertion rods are in sliding connection with the limiting plate.

Preferably, the outer side surface of the C-shaped fixing piece is provided with a limiting groove corresponding to the inserted bar, and the inserted bar is connected with the C-shaped fixing piece in a clamping manner.

Preferably, the C-shaped fixing pieces are provided with four groups, two groups of the C-shaped fixing pieces are symmetrically and fixedly sleeved on the left side surface of the moving plate, and the other two groups of the C-shaped fixing pieces are symmetrically and fixedly sleeved on the right side surface of the moving plate.

Compared with the prior art, the utility model has the beneficial effects that:

the device is provided with an Nd: YAG crystal and Nd: YLF crystal, Nd by high power pumping: positive thermal lens effect of YAG and Nd under high power pumping: negative thermal lens effect of YLF, Nd pumped with 808nm pump source simultaneously in one cavity: YAG side pump module and 792 pump source pumped Nd: and the YLF side pump modules and the two pump modules respectively generate a positive thermal lens effect and a negative thermal lens effect under high-power pumping, and simultaneously can control the focal length of the thermal lens by respectively controlling the pumping power, so that the heat dissipation lens effect is mutually reduced, and high-power and high-beam-quality laser output is achieved.

The device is provided with a first output mirror and a second output mirror, the position of the first output mirror and the position of the second output mirror are controlled to control the output of a laser system to be 1064nm or 1053nm, and the output with two wavelengths is controlled to be switched by using different output mirrors.

Drawings

FIG. 1 is a schematic perspective view of a high power and high beam quality 1064nm/1063nm dual-wavelength laser according to the present invention;

FIG. 2 is a schematic three-dimensional blasting diagram of the limiting plate structure shown in FIG. 1;

FIG. 3 is a schematic diagram of a laser routing structure of a laser;

fig. 4 is a schematic diagram of a conventional 1064nm side pump laser.

In the figure: 1. a total reflection mirror; 2. 808nmBar strips; 3. nd: YAG crystal; 4. 797nmBar strips; 5. nd: YLF crystal; 6. a first output mirror; 7. a second output mirror; 8. a limiting plate; 9. a protective shell; 10. a C-shaped fixing piece; 11. inserting a rod; 12. a spring; 13. and (5) moving the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a high-power high beam quality 1064nm/1063nm dual-wavelength laser includes a total reflection mirror 1 and a protective shell 9, the interior of the protective shell 9 is provided with an Nd: YAG crystal 3 and Nd: YLF crystal 5, and Nd: the bottom end of the YAG crystal 3 is provided with 808nmBar 2, Nd: the bottom end of the YLF crystal 5 is provided with 797nmBar strips 4.

Further, refer to fig. 1 and fig. 3 and learn, total reflection mirror 1 is installed on the left surface of protecting crust 9, the right side fixed surface of protecting crust 9 is connected with limiting plate 8, and limiting plate 8 is provided with two sets ofly, connect through movable plate 13 between two sets of limiting plates 8, and the both sides surface symmetry cover of movable plate 13 is equipped with C shape stationary blade 10, the outside inside of C shape stationary blade 10 is inserted and is equipped with inserted bar 11, and the surface cover of inserted bar 11 is equipped with spring 12, the movable plate 13 the symmetry fixed mounting about the surface has first output mirror 6 and second output mirror 7, through using first output mirror 6 and second output mirror 7 to control and switch two kinds of wavelength outputs.

Further, as can be known by referring to fig. 2, a sliding groove corresponding to the C-shaped fixing piece 10 is formed in the inner side surface of the limiting plate 8, the C-shaped fixing piece 10 is inserted into the sliding groove, the C-shaped fixing piece 10 is connected with the limiting plate 8 in a sliding manner, so that the moving plate 13 is moved conveniently, and the positions of the first output mirror 6 and the second output mirror 7 are adjusted.

Further, as can be known by referring to fig. 2, the two side surfaces of the limiting plate 8 are symmetrically provided with hole grooves corresponding to the insertion rods 11, the insertion rods 11 are inserted in the hole grooves, and the insertion rods 11 are slidably connected with the limiting plate 8, so that the movable plate 13 can slide up and down in the limiting plate 8.

Further, as can be known from fig. 2, the outer side surface of the C-shaped fixing piece 10 is provided with a limiting groove corresponding to the inserting rod 11, and the inserting rod 11 is connected with the C-shaped fixing piece 10 in a clamping manner, so that the moving plate 13 is conveniently fixed and prevented from shaking during use.

Further, as can be seen from fig. 1 and 2, the C-shaped fixing pieces 10 are provided in four groups, two groups of the C-shaped fixing pieces 10 are symmetrically fixed on the left side surface of the moving plate 13, and the other two groups of the C-shaped fixing pieces 10 are symmetrically fixed on the right side surface of the moving plate 13, so that the sliding track of the moving plate 13 can be defined by the C-shaped fixing pieces 10.

The working principle is as follows: when the laser fixing device is used and the output of a laser system needs to be adjusted, according to the attached drawings 1 and 2, a related technician manually pulls the moving plate 13, the moving plate 13 moves in the limiting plate 8, in the moving process, the C-shaped fixing pieces 10 are driven to abut against the inserting rods 11, the inserting rods 11 slide towards the outer side of the limiting plate 8, the springs 12 are stressed to be in an expansion state, the inserting rods 11 are far away from the inner parts of the C-shaped fixing pieces 10, when the moving plate 13 is adjusted to a proper position, the inserting rods 11 correspond to the limiting grooves of the other group of C-shaped fixing pieces 10, the external force of the springs 12 is contacted, the inserting rods 11 are inserted into the limiting grooves through the elastic force of the springs, and the fixing operation is completed.

In the present invention, the installation manner, the connection manner, or the setting manner of all the components described above are all common mechanical manners, and the specific structures, models, and coefficient indexes of all the components are their own technologies, which can be implemented as long as the beneficial effects thereof can be achieved, and thus, the details are not repeated.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

In the present invention, unless otherwise specified, the terms "upper, lower, left, right, front, back, inner, outer, vertical and horizontal" and the like included in the terms only represent the orientation of the terms in the conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms, and meanwhile, the terms "first", "second" and "third" and the like do not represent specific numbers and sequences, but are merely used for name differentiation, and the terms "include", "include" and any other variations are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a high beam quality 1064nm/1063nm dual wavelength laser of high-power, includes total reflection mirror (1) and protecting crust (9), its characterized in that, the inside of protecting crust (9) is provided with Nd: YAG crystal (3) with Nd: YLF crystal (5), and Nd: the bottom end of the YAG crystal (3) is provided with 808nmBar strips (2), the Nd: the bottom end of the YLF crystal (5) is provided with 797nmBar strips (4).

2. The high-power high-beam-quality 1064nm/1063nm dual-wavelength laser device according to claim 1, wherein said total reflector (1) is installed on the left surface of the protecting shell (9), the right surface of the protecting shell (9) is fixedly connected with the limiting plate (8), and the limiting plate (8) is provided with two sets of, connecting through the moving plate (13) between the limiting plate (8), and the both sides surface symmetrical sleeve of the moving plate (13) is equipped with the C-shaped fixing plate (10), the outside of the C-shaped fixing plate (10) is internally inserted with the inserting rod (11), and the surface sleeve of the inserting rod (11) is equipped with the spring (12), the surface of the moving plate (13) is symmetrically and fixedly installed with the first output mirror (6) and the second output mirror (7) from top to bottom.

3. The high-power high-beam-quality 1064nm/1063nm dual-wavelength laser device according to claim 2, wherein the inner surface of the limiting plate (8) is provided with a sliding slot corresponding to the C-shaped fixing piece (10), the C-shaped fixing piece (10) is inserted into the sliding slot, and the C-shaped fixing piece (10) is slidably connected with the limiting plate (8).

4. The high-power high-beam-quality 1064nm/1063nm dual-wavelength laser device according to claim 2, wherein the limiting plate (8) has holes and grooves symmetrically formed on its two side surfaces, the holes and grooves corresponding to the insertion rods (11), the insertion rods (11) are inserted into the holes and grooves, and the insertion rods (11) are slidably connected to the limiting plate (8).

5. The high-power high-beam-quality 1064nm/1063nm dual-wavelength laser device as claimed in claim 3, wherein said C-shaped fixing plate (10) has a limiting groove on its outer surface corresponding to the inserting rod (11), said inserting rod (11) and C-shaped fixing plate (10) are snap-fit connected.

6. The high power and high beam quality dual wavelength 1064nm/1063nm laser as claimed in claim 5, wherein said C-shaped fixing plates (10) are provided in four sets, two sets of said C-shaped fixing plates (10) are symmetrically fixed on the left side surface of said moving plate (13), and the other two sets of said C-shaped fixing plates (10) are symmetrically fixed on the right side surface of said moving plate (13).