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Composite laser crystal and laser provided with same

A composite laser crystal and laser crystal technology, applied in the field of lasers, can solve the problems of low laser reliability and too many optical components, and achieve the effects of being beneficial to high power, increasing stability and reliability, and reducing adjustment difficulty

Inactive Publication Date: 2012-06-06
BEIJING GK LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the above-mentioned laser introduces two reflectors, that is, there are too many optical elements in the laser system, it is easy to cause the reliability of the entire laser to be low

Method used

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  • Composite laser crystal and laser provided with same
  • Composite laser crystal and laser provided with same
  • Composite laser crystal and laser provided with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Please refer to figure 2 As shown, a composite laser crystal 10 includes a laser crystal body 11 , at least one end of the laser crystal body 11 extends outward to form a matrix 12 . The laser crystal body 11 is a doped laser gain medium, and the matrix 12 is an undoped laser gain medium. The main body is connected with the base body in a fit manner. The base 12 includes a first end face 13, a second end face 14 and a third end face 15, wherein the first end face 13 is connected to the laser crystal main body 11, and the second end face 14 is vertically connected to the first end face 13 and connected to the laser crystal The top of the main body 11 is on the same plane, and the third end face 15 is connected to the first and second end faces (13, 14). Set high reflective film. The third end surface 15 of the base body 12 forms an included angle of 45 degrees with the transverse axial line of the laser crystal main body 11 .

[0023] The working process of the lase...

Embodiment 2

[0027] Please refer to image 3 Shown: a composite laser crystal 20, comprising a laser crystal main body 21 with a rectangular cross section, both ends of the main body extend outward to form a matrix (22, 23) with a triangular longitudinal section respectively, the two matrix (22,23) are all provided with first, second and third end faces, wherein the third end faces (24,25) and the axial line of the main body 21 are at an angle of 45 °, the third end faces (24,25) The outer surfaces are all coated with an anti-reflection film, and the inner surfaces of the third end surfaces (24, 25) are all coated with a high-reflection film.

[0028] The working process in the laser equipped with the composite laser crystal is: the laser emits a "seed light" C (weak signal), and the "seed light" C shoots at the inner surface of one of the third end faces 24 at an incident angle of 45° , since the inner surface is coated with a high-reflection film, the incident light completely enters th...

Embodiment 3

[0031] Please refer to Figure 4 As shown, the shape of the composite laser crystal remains consistent with that of Embodiment 3, and the propagation path of the seed light in the composite laser crystal is also consistent with that of Embodiment 3. The difference is that: according to the needs of the final beam power amplification, select Two pump light sources are used.

[0032] In all the above embodiments, the matrix provided by the composite laser crystal is not doped with the matrix of the gain medium; according to the needs of actual operation, the body and the matrix can also be integrally formed; according to the "seed light" emitted by the laser ”The angle of incidence to the third end face of the base body, and correspondingly set the included angle between the third end face of the base body and the transverse axial line of the laser crystal main body as other angles.

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Abstract

The invention discloses a composite laser crystal and a laser provided with the composite laser crystal. The composite laser crystal comprises a laser crystal main body, wherein at least one end of the laser crystal main body extends outwards to form a matrix; the matrix comprises a first end surface, a second end surface and a third end surface; the first end surface is connected with the laser crystal main body; the second end surface is vertically connected with the first end surface and is positioned on the same plane with the top of the laser crystal main body; the third end surface is connected with the first and the second end surfaces; an anti-reflection film is arranged on the outer side surface of the third end surface in a plated manner; and a high-reflection film is arranged on the inner side surface of the third end surface in a plated manner. The composite laser crystal adopting the technical scheme has the advantages that the number of optical elements is decreased, the adjustment difficulty of the laser is reduced, and the stability of a system is improved; and since gain media are doped into the laser crystal, laser crystal deformation caused by uneven distribution of heat produced by two end surfaces of the laser crystal main body in the working process can be relieved.

Description

technical field [0001] The invention relates to the technical field of solid laser, in particular to a composite laser crystal and a laser equipped with the composite laser crystal. Background technique [0002] Types of amplifiers include traveling wave amplifiers, multipass amplifiers, and regenerative amplifiers. The working principle of the regenerative amplifier is: a "seed light" (weak signal) with good beam quality is injected into the laser, which acts as a "seed" to control the generation of laser oscillation, and then provides energy through the pump light to finally obtain a beam quality A laser beam that is good and has a certain energy. In the regenerative amplifier, the working flow chart of the amplification after the seed light passes through the gain medium once is as attached figure 1 As shown, the direction of the light is as follows: first, the laser emits a sub-light, and the sub-light is incident on the first reflector 91 at an incident angle of 45°, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/06H01S3/16
Inventor 樊仲维闫莹牛刚石朝辉黄玉涛
Owner BEIJING GK LASER TECH
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