CN215008905U

CN215008905U - End-pumped laser

Info

Publication number: CN215008905U
Application number: CN202121366572.3U
Authority: CN
Inventors: 胡建珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-03
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses an end pump laser belongs to laser marking's technical field. The utility model discloses an end pump laser includes the light path seat, the direction along laser emission sets gradually the laser pumping module along the interval on the top surface of light path seat, the coupling focusing mirror, the mirror that reflects entirely, laser crystal, the chromium crystal, the output mirror, ruddiness coupling mirror and beam expanding mirror, the light path seat sets up ruddiness chip in the below of ruddiness coupling mirror, ruddiness that ruddiness chip sent and laser are through getting into ruddiness coupling mirror coupling, the side of light path seat sets up the microcomputer and beats mark card system integrated board and laser drive plate, laser drive plate and microcomputer are beaten mark card system integrated board and are connected and are used for controlling laser emission. The utility model discloses a simple structure of end pump laser, the integrated level is high, and is small, and heat dispersion is good, and facilitates the use and maintains.

Description

End-pumped laser

Technical Field

The utility model relates to a laser marking's technical field, in particular to end pump laser.

Background

The existing end pump laser is complex in structure, components are arranged in respective boxes in a split mode, so that the volume of the end pump laser is large, the integration level is low, the production and transportation cost is high, and the installation and debugging consume labor hours. Therefore, there is a need in the market for an end-pumped laser with simple structure, small volume, high integration and convenient use.

SUMMERY OF THE UTILITY MODEL

The utility model provides an end pump laser aims at solving one or more among the above-mentioned technical problem.

The utility model discloses an end pump laser includes the light path seat, the direction along laser emission sets gradually the laser pumping module along the interval on the top surface of light path seat, the coupling focusing mirror, the mirror that reflects entirely, laser crystal, the chromium crystal, the output mirror, ruddiness coupling mirror and beam expanding mirror, the light path seat sets up ruddiness chip in the below of ruddiness coupling mirror, ruddiness that ruddiness chip sent and laser are through getting into ruddiness coupling mirror coupling, the side of light path seat sets up the microcomputer and beats mark card system integrated board and laser drive plate, laser drive plate and microcomputer are beaten mark card system integrated board and are connected and are used for controlling laser emission.

Through adopting above-mentioned technical scheme, the simple structure of laser instrument, the components and parts integration of laser instrument is on the light path seat, and the integrated level is high, and is small, facilitates the use and maintains.

In some embodiments, a semiconductor cooling plate is disposed on the top surface of the optical path seat, and the laser pumping module is located on the semiconductor cooling plate.

Through adopting above-mentioned technical scheme, the heat accessible semiconductor refrigeration piece that the laser pumping module produced in time siphons away, and accurate control is constant temperature, improves the life of laser pumping module.

In some embodiments, a heat dissipation unit is further disposed on the optical path base.

Through adopting above-mentioned technical scheme, improve the thermal diffusivity.

In some embodiments, the heat dissipating unit includes a plurality of heat dissipating fins and a plurality of fans, the fans being located below the heat dissipating fins.

Through adopting above-mentioned technical scheme, the heat that components and parts produced can conduct to the fin and blow away fast through the fan.

In some embodiments, the plurality of heat sinks are arranged parallel to each other and extend along the laser emission direction.

Through adopting above-mentioned technical scheme, the radiating effect is good.

In some embodiments, the heat sink is made of aluminum.

Compared with the prior art, the utility model discloses a simple structure of end pump laser, the integrated level is high, and is small, and heat dispersion is good, and facilitates the use and maintains.

Drawings

Fig. 1 is a schematic diagram of a first structure of an end-pumped laser according to the present invention;

fig. 2 is a second schematic structural diagram of an end-pumped laser according to the present invention;

fig. 3 is a schematic diagram of a third structure of an end-pumped laser according to the present invention.

Reference numbers in the drawings illustrate: the laser marking card system comprises a light path seat 1, a box body 2, a laser pumping module 3, a coupling focusing mirror 4, a total reflection mirror 5, a laser crystal 6, a laser crystal seat 61, a chromium crystal 7, a chromium crystal seat 71, an output mirror 8, a red light coupling mirror 9, a beam expanding mirror 10, a red light chip 11, a microcomputer marking card system integrated board 12, a laser driving board 13, a semiconductor refrigerating piece 14, a heat dissipation unit 15, a heat dissipation fin 151, a fan 152 and a fan shell 153.

Detailed Description

To facilitate understanding of the present invention by those skilled in the art, the present invention will be further described with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Fig. 1 to 3 schematically show an end-pumped laser according to the present invention.

As shown in fig. 1 to 3, the end-pump laser of the present invention includes a light path base 1 and a box body 2 located on the light path base 1, and the box body 2 is provided with a light path cavity. The laser pumping module 3, the coupling focusing mirror 4, the total reflection mirror 5, the laser crystal 6, the chromium crystal 7(Cr crystal), the output mirror 8, the red light coupling mirror 9 and the beam expander 10 are arranged on the top surface of the light path seat 1 at intervals, and the laser pumping module 3, the coupling focusing mirror 4, the total reflection mirror 5, the laser crystal 6, the chromium crystal 7, the output mirror 8, the red light coupling mirror 9 and the beam expander 10 are positioned in the light path cavity. The pump light emitted by the laser pump module 3 sequentially passes through the coupling focusing mirror 4, the total reflection mirror 5 and the laser crystal 6 to form laser, and the laser is emitted outwards after passing through the chromium crystal 7(Cr crystal), the output mirror 8, the red light coupling mirror 9 and the beam expanding mirror 10. The laser crystal 6 and the chromium crystal 7 are respectively mounted on the laser crystal seat 61 and the chromium crystal seat 71 on the top surface of the optical path seat 1. The light path seat 1 is provided with a red light chip 11 below the red light coupling mirror 9. The red light emitted by the red light chip 11 is coupled with the laser entering the red light coupling mirror 9. The side of the optical path seat 1 is provided with a microcomputer marking card system integrated board 12 and a laser drive board 13, and the laser drive board 13 is connected with the microcomputer marking card system integrated board 12. The laser driving board 13 is used to control emission of laser light. The components and parts of the laser are integrated on the optical path base 1, so that the laser is high in integration level, small in size and convenient to use and maintain.

Preferably, a semiconductor cooling plate 14(TEC) is disposed on the top surface of the optical path base 1, and the laser pumping module 3 is located on the semiconductor cooling plate 14. The heat generated by the laser pumping module 3 can be absorbed in time through the semiconductor refrigerating sheet 14, and the constant temperature can be accurately controlled, so that the service life of the laser pumping module 3 is prolonged.

The light path holder 1 is further provided with a heat dissipation unit 15. The heat dissipation unit 15 includes a plurality of heat dissipation fins 151 and a plurality of fans 152, and the fans 152 are mounted on the optical circuit base 1 through fan housings 153 and located below the heat dissipation fins 151. Preferably, the heat sink 151 is made of aluminum. The plurality of heat dissipation fins 151 are disposed parallel to each other and extend along the laser emission direction. The heat generated by the components can be conducted to the heat sink 151 and quickly dissipated by the fan 152, which has a good heat dissipation effect.

The utility model discloses a simple structure of end pump laser, the integrated level is high, and is small, and heat dispersion is good, and facilitates the use and maintains.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. End pump laser, its characterized in that: including the light path seat, set up laser pumping module, coupling focusing mirror, total reflection mirror, laser crystal, chromium crystal, output mirror, ruddiness coupling mirror and beam expanding lens along laser emission's direction interval in proper order on the top surface of light path seat, the light path seat is in the below of ruddiness coupling mirror sets up ruddiness chip, ruddiness that ruddiness chip sent with laser is through getting into ruddiness coupling mirror coupling, the side of light path seat sets up microcomputer marking card system integrated board and laser drive board, the laser drive board with microcomputer marking card system integrated board is connected and is used for control laser emission.

2. The end-pumped-laser as recited in claim 1, wherein: the semiconductor refrigerating sheet is arranged on the top surface of the light path seat, and the laser pumping module is located on the semiconductor refrigerating sheet.

3. The end-pumped-laser as recited in claim 1, wherein: and the light path seat is also provided with a heat dissipation unit.

4. A end-pumped laser as claimed in claim 3 wherein: the heat dissipation unit comprises a plurality of heat dissipation fins and a plurality of fans, and the fans are located below the heat dissipation fins.

5. The end-pumped-laser as recited in claim 4, wherein: the radiating fins are arranged in parallel and extend along the laser emission direction.

6. The end-pumped-laser as recited in claim 4, wherein: the radiating fin is made of aluminum.