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Multi-lamp single-rod solid laser and using method thereof

A technology of solid-state lasers and lasers, applied in lasers, laser components, phonon exciters, etc., can solve the problems of high operating costs, uneconomical, bulky, etc., and achieve the effect of increasing cutting speed and thickness and prolonging life

Active Publication Date: 2012-06-13
桂林星辰科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing YAG solid-state lasers are used for cutting plates below 5mm, and the speed is relatively slow
[0005] However, CO2 lasers have to be selected for thick plate cutting and high-speed cutting, but CO2 lasers are expensive, bulky, and costly to operate, which is extremely uneconomical.

Method used

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  • Multi-lamp single-rod solid laser and using method thereof
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  • Multi-lamp single-rod solid laser and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 3 and Figure 5 As shown, this example includes a crystal rod 6, a pump lamp 7, a condensing cavity 1, and a reflector 5. The crystal rod 6 is a yttrium aluminum garnet crystal rod, and the pump lamp 7 is a xenon lamp. The rod 6 is installed in the center of the condensing cavity 1, fixed by the crystal rod ports 4 at both ends of the concentrating cavity 1, and 4 identical pump lamps 7 are installed in the concentrating cavity 1, parallel to and surrounding the crystal rod 6. The crystal rods 6 are arranged symmetrically and evenly, and the pump lamp 7 is connected to the laser power supply through the lamp electrode interfaces 3 at the two ends of the concentrating cavity 1. A reflective tile 8 is provided on the inner wall of the condensing cavity 1. Reflectors 5 are installed in front of and behind the condensing cavity 1, a cooling liquid circulation pipe 2-1 is located outside the concentrating cavity 1, and a cooling liquid pipe interf...

Embodiment 2

[0033] The installation of the crystal rod 6, the pump lamp 7, the condensing cavity 1, the cooling liquid circulation pipe 2-1, the reflecting tile 8 and the reflecting mirror 5 in this example is similar to that of the embodiment 1. The crystal rod 6 is a ruby ​​crystal rod , The pump lamp 7 is a krypton lamp. Such as Figure 4 As shown, six identical pump lamps 7 are installed in the condensing cavity 1, parallel to the crystal rod 6, and symmetrically and evenly arranged around the crystal rod 6. The 6 pump lamps 7 are numbered L1 to L6 in the order of the circle, and are divided into 3 groups, namely L1 and L4, L2 and L5, and L3 and L6. Such as Image 6 As shown, two pump lamps 7 in each group are connected in series and connected to one laser power supply, and three laser power supplies are connected to the upper controller.

[0034] Example 1 of using method of multi-lamp single rod solid-state laser

[0035] This example uses the first embodiment of the above-mentioned mu...

Embodiment 3

[0050] This example uses the first embodiment of the above-mentioned multi-lamp single-rod solid-state laser.

[0051] In this example, the upper controller divides 4 identical pump lights into 4 groups, each with 1 pump light, which is labeled L1 to L4 in the order of the circle.

[0052] According to the command pulse of the pump light energy required by the desired laser output laser pulse, the command pulse of the upper controller is as Picture 9 As shown in D, the frequency is F, the single pulse pump power is W, and the pulse width is t.

[0053] Each pump lamp works at a frequency of F / 4, a single pulse pump power of W, and a pulse width of t. The upper controller divides the pulses of D into 4 segments, and the pump lamp L1 is the first pulse of each segment. Work, the drive command from laser power supply 1 is as Picture 9 As shown in D1, the pump light pulse output by L1 is as Picture 9 As shown by Q1; L2 works in the second pulse of each segment, and the drive command o...

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Abstract

The invention discloses a multi-lamp single-rod solid laser and a using method thereof. The laser is provided with N same pump lamps which are symmetrically and uniformly arranged around a crystal rod, wherein N is a positive integer which is not less than 3 and not greater than 20; and a laser power source of the pump lamps is connected with an upper controller. Each pump lamp or a group of pump lamps connected in series is or are connected with a laser power supply. The using method of the multi-lamp single-rod solid laser comprises the following steps that: the upper controller divides the N pump lamps into M groups, wherein M is a positive submultiple of N; if the frequency of the pump energy for outputting pulse laser is F, the single-pulse pump power is W, the pulse width is t and M output laser pulses belong to a section, the lamps work under conditions that the frequency is F / M, the single-pulse pump power is WM / N, the pulse width is t and each group is at the ith pulse of each section, wherein i is the group number; and if the pump power for outputting continuous lasers is W, the lamps work alternately under conditions that the pump power is WM / N and each group lasts for T time intervals and performs M cycles, or the lamps work synchronously at power W / N. According to the invention, the working frequency and power of each lamp are reduced, and the service life of the lamp is multiplied or the pump power is multiplied.

Description

(1) Technical field [0001] The invention relates to the technical field of solid lasers, in particular to a multi-lamp single rod solid laser and a method of use. (2) Background technology [0002] The solid-state laser with yttrium aluminum garnet crystal rod or ruby ​​crystal rod as the working material also includes an optical pump and an optical resonant cavity as an excitation energy source. The optical pump is also called a pump light source, usually a xenon lamp or a krypton lamp driven by a laser power supply. The strong light of the optical pump is irradiated on the crystal rod to realize the inversion of the number of working material particles of the crystal rod and generate laser light. The reflection of the mirrors parallel to each other at both ends of the optical resonant cavity causes the stimulated radiation to proceed continuously and continuously accelerate the photons; finally, the laser is output. [0003] The solid-state laser has high output energy, economi...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/092
Inventor 吕虹彭尔康吴勇强梁伟黎勇改
Owner 桂林星辰科技股份有限公司