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Combined full-solid state frequency-doubled Raman yellow laser

A combined laser technology, applied to lasers, laser components, phonon exciters, etc., can solve the problems that cannot effectively overcome the limitations of laser output power and beam quality

Inactive Publication Date: 2009-11-04
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, all the Raman frequency-doubled yellow lasers are obtained by using the separation structure of the laser gain medium and the Raman gain medium or from Raman. These methods cannot effectively overcome the thermal effect of the laser gain medium and the Raman gain length on the laser. Output Power and Beam Quality Limitations

Method used

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  • Combined full-solid state frequency-doubled Raman yellow laser
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  • Combined full-solid state frequency-doubled Raman yellow laser

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Effect test

Embodiment approach 1

[0014] The all-solid-state combined Raman frequency-doubled yellow laser uses a linear cavity to output continuous yellow laser. A semiconductor laser end pumping system 1, an input cavity mirror 2, a Raman combined crystal 3, an isolation cavity mirror 5, a nonlinear optical crystal 4, and a straight cavity output cavity mirror 6 are placed in sequence on the optical path. This solution consists of an input cavity mirror 2 and a straight cavity output cavity mirror 6 to form a laser cavity for fundamental wave light and Raman light. The pump light of the semiconductor laser end pumping system 1 is incident on the Raman composite crystal 3 by the laser input cavity mirror 2, and is doped with Nd 3+ The laser gain medium absorbs 302, and then emits the fundamental wave light of the corresponding wavelength to oscillate in the laser cavity. The Raman combined crystal 3 as a whole acts as a Raman gain medium to convert the fundamental wave light into Raman laser, and then convert...

Embodiment approach 2

[0016] The all-solid-state combined Raman frequency-doubled yellow laser uses a linear cavity to output Q-switched pulsed yellow laser. The semiconductor laser end pumping system 1, the input cavity mirror 2, the Raman combined crystal 3, the Q-switching device 9, the isolation cavity mirror 5, the nonlinear optical crystal 4, and the straight cavity output cavity mirror 6 are placed in sequence on the optical path. This solution consists of an input cavity mirror 2 and a straight cavity output cavity mirror 6 to form a laser cavity for fundamental wave light and Raman light. The pump light of the semiconductor laser end pumping system 1 is incident on the Raman composite crystal 3 by the laser input cavity mirror 2, and is doped with Nd 3+ The laser gain medium absorbs 302, and then emits the fundamental wave light of the corresponding wavelength, which is modulated by the Q-switching device in the laser cavity to form pulsed light oscillation, and the Raman combined crystal ...

Embodiment approach 3

[0018] The all-solid-state combined Raman frequency-doubled yellow laser uses a folded cavity to output continuous yellow laser. A semiconductor laser end pumping system 1, an input cavity mirror 2, a Raman combined crystal 3, a folded output cavity mirror 7, a nonlinear optical crystal 4, and a total reflection cavity mirror 8 are placed in sequence on the optical path. This scheme consists of an input cavity mirror 2 and a total reflection cavity mirror 8 to form a laser cavity for fundamental wave light and Raman light. The pump light of the semiconductor laser end pumping system 1 is incident on the Raman composite crystal 3 by the laser input cavity mirror 2, and is doped with Nd 3+ The laser gain medium absorbs 302, and then emits the fundamental wave light of the corresponding wavelength to oscillate in the laser cavity. The Raman combined crystal 3 as a whole acts as a Raman gain medium to convert the fundamental wave light into Raman laser, and then converts the funda...

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Abstract

The invention provides a combined full-solid state frequency-doubled Raman yellow laser with compact structure, which mainly adopts a semiconductor laser end-pumped linear cavity or folded cavity structure and can realize continuous or Q-switched yellow laser output. The Raman yellow laser is mainly characterized by placing a Raman combination crystal and a nonlinear crystal in a laser cavity. Owing to adopting the Raman combination crystal, the invention overcomes the defect that the laser gain medium and the Raman gain medium in the current solid Raman laser are separated, thereby effectively reducing the thermal effect of the laser medium and improving the yellow laser beam quality and system stability.

Description

technical field [0001] The invention relates to the field of solid-state lasers, in particular to an all-solid-state combined Raman frequency-doubled yellow laser. technical background [0002] Yellow laser can be used as a sodium beacon light source in military and meteorological fields. In the field of laser medical beauty, it can treat skin hemangiomas, port wine stains, and telangiectasia. In addition, it can also be used in spectroscopy, laser radar, and information storage. Wide range of applications. At present, frequency-doubled neodymium-doped laser Raman laser to produce yellow light is one of the effective means to obtain yellow light by solid-state laser technology. [0003] Raman laser technology expands the range of laser wavelengths that can be reached by conventional solid-state lasers, especially the 1.5 micron band laser that is safe for human eyes and the yellow laser that can be obtained through Raman laser frequency doubling, so Raman lasers have become...

Claims

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Application Information

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IPC IPC(8): H01S3/0941H01S3/30H01S3/109H01S3/16G02F1/355
Inventor 朱海永张戈黄呈辉魏勇黄凌雄段延敏沈鸿元
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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