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High-order laguerre-gaussian beam solid laser

A technology of solid-state lasers and Gaussian beams, applied in lasers, laser components, phonon exciters, etc., can solve the problems of limited types of Laguerre-Gaussian laser modes, and achieve strong realizability, high power, and structure simple effect

Inactive Publication Date: 2018-05-11
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the types of Laguerre-Gaussian laser modes generated by this method are very limited, and only LG 0l Lasers with Single Ring Intensity Distribution in (l≥1) Mode

Method used

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  • High-order laguerre-gaussian beam solid laser
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  • High-order laguerre-gaussian beam solid laser

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1: Combining image 3 , a high-order Laguerre-Gaussian beam solid-state laser based on cascaded conical refraction ring light pumping, which consists of a pump source 1, followed by a focusing lens 2 and a ring light conversion unit along the output light direction of the pump source 3. Laser gain medium 4. Laser output coupling mirror 5. The annular light conversion unit 3 is composed of a first biaxial crystal 301 , a second biaxial crystal 302 , and a first imaging lens 311 . Both the first biaxial crystal 301 and the second biaxial crystal 302 are placed on the fixture of the rotatable adjustment frame.

[0030] After the pump laser beam is focused by the focusing lens 2, it passes through the first biaxial crystal 301 cut perpendicular to any optical axis direction, and the pitch and left and right deflection of the first biaxial crystal 301 are adjusted so that the beam is incident along the crystal optical axis direction corresponding to its wavelength. ...

Embodiment 2

[0031] Embodiment two: combine Figure 4 , a high-order Laguerre-Gaussian beam solid-state laser based on cascaded conical refraction ring light pumping, which consists of a pump source 1, followed by a focusing lens 2 and a ring light conversion unit along the output light direction of the pump source 3. Laser gain medium 4. Laser output coupling mirror 5. The ring light conversion unit 3 is composed of a first biaxial crystal 301 and a second biaxial crystal 302 . Both the first biaxial crystal 301 and the second biaxial crystal 302 are placed on the fixture of the rotatable adjustment frame.

[0032] The pump laser beam is focused by the focusing lens 2 and then continuously passes through the first biaxial crystal 301 and the second biaxial crystal 302 cut in a direction perpendicular to any optical axis. Adjusting the pitch and left-right deflection of the first biaxial crystal 301 and the second biaxial crystal 302 makes the light beam incident along the crystal optica...

Embodiment 3

[0033] Example Three: Combining Figure 5 , a high-order Laguerre-Gaussian beam solid-state laser based on cascaded conical refraction ring light pumping, which consists of a pump source 1, followed by a focusing lens 2 and a ring light conversion unit along the output light direction of the pump source 3. Laser gain medium 4. Laser output coupling mirror 5. The ring light conversion unit 3 is composed of a first biaxial crystal 301 , a second biaxial crystal 302 and a third biaxial crystal 303 . The first biaxial crystal 301 , the second biaxial crystal 302 , and the third biaxial crystal 303 are all placed on the fixture of the rotatable adjustment frame.

[0034] The pumping laser beam is focused by the focusing lens 2 and then continuously passes through the first biaxial crystal 301 , the second biaxial crystal 302 , and the third biaxial crystal 303 cut in a direction perpendicular to any optical axis. Adjust the pitch and left-right deflection of the first biaxial cry...

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Abstract

The invention discloses a high-order laguerre-gaussian beam solid laser, which comprises a pumping source, a focusing lens, a circular light conversion unit, a laser gain medium and a laser output coupling mirror, wherein the focusing lens, the circular light conversion unit, the laser gain medium and the laser output coupling mirror are arranged along a light output direction of the pumping source; the circular light conversion unit is formed by combining biaxial crystal and an imaging lens; and the biaxial crystal is put on a clamp of a rotary adjusting bracket. The high-order laguerre-gaussian beam solid laser has the advantages of being simple in device and high in output power, the quality of an output beam is good and an output transverse mode is adjustable.

Description

technical field [0001] The invention belongs to solid-state laser technology, in particular to a high-order Laguerre-Gaussian beam solid-state laser based on cascaded conical refraction ring light pumping. Background technique [0002] In recent years, high-order Laguerre-Gaussian lasers (Laguerre-Gaussian, namely LGpl, p is the number of nodal circles along the radial direction, l is the number of nodal lines along the angular direction, p≥0, l≥1 and p, l are integers, ) show a wide range of application value in basic physics research and practical applications. In basic physics research, it can be used for Bose-Einstein condensate of atoms, optical capture and manipulation, measurement of atomic trajectory, etc.; in practical applications, it has the characteristics of orbital angular momentum and annular intensity distribution and can be used for quantum information coding, Free-space optical communication and super-resolution and other fields; especially in the applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/091H01S3/06H01S3/08
CPCH01S3/091H01S3/0602H01S3/0623H01S3/08
Inventor 李建郎吴勇晓夏克贵孙雪焕
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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