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Frequency-doubled solid-state laser in injection locking cavity

A solid-state laser and intracavity frequency doubling technology, which is applied in the field of lasers, can solve the problems of low frequency doubling efficiency and achieve the effects of improving efficiency, reducing difficulty, and reducing costs

Active Publication Date: 2016-03-30
SHANGHAI PRECILASERS TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are generally two ways of frequency doubling, intracavity frequency doubling and extracavity frequency doubling. Both methods have their own advantages and disadvantages. The stability of the extracavity frequency doubling technology is better, but the frequency doubling efficiency is low, and the intracavity frequency doubling is the opposite.

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  • Frequency-doubled solid-state laser in injection locking cavity

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Embodiment Construction

[0014] In order to have a further understanding of the structure of the present invention and the effect achieved, the preferred embodiments are now described in detail as follows in conjunction with the accompanying drawings:

[0015] like figure 1 As shown, it can be seen from the figure that the injection-locked intracavity frequency-multiplied solid-state laser of the present invention includes a pumping source 1, a convex lens 2, an annular cavity 3, a seed laser 4, a phase-modulated optical heterodyne frequency stabilization system 5, and a beam-splitting prism 6. The annular cavity 3 includes a pump light input coupling mirror 30, a laser crystal 31, a first concave mirror 32, an optical isolator 33, a plane reflector 34, a seed light input coupling mirror 35, an output coupling mirror 36, a frequency doubling crystal 37, second concave mirror 38;

[0016] The direction of the seed light output along the seed laser 4 is the seed light input coupling mirror 35, the pump...

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Abstract

The invention discloses a frequency-doubled solid-state laser in an injection locking cavity. The frequency-doubled solid-state laser comprises a pumping source, a convex lens, an annular cavity, a seed laser, a phase modulation optical heterodyne frequency stabilizing system and a beam splitter prism. The frequency-doubled solid-state laser has the characteristics of simple structure and low cost, and can generate a frequency-doubled laser output with high power, a small line width and an adjustable frequency.

Description

technical field [0001] The invention relates to a laser, in particular to an injection-locked intracavity frequency doubling solid-state laser. Background technique [0002] In order to generate single-mode beams in general solid-state lasers, optical elements such as birefringent plates and etalons must be inserted into the cavity for mode selection. Inserting optics adds noise, increases losses, increases threshold, and reduces slope efficiency. However, injection locking technology can overcome these shortcomings. Injection locking technology injects a weak seed laser into a high-power laser to produce a narrow linewidth, single-mode, high-power laser output. Since no additional frequency selection components need to be added, the output performance of the laser system is improved. Injection-locked lasers have been used in applications such as lidar, interferometer, and laser measurement. At present, most injection-locked lasers are pulsed lasers, and there are few las...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/109H01S3/098
CPCH01S3/109H01S3/1106
Inventor 李文杰徐震孙剑芳赵儒臣付小虎
Owner SHANGHAI PRECILASERS TECH CO LTD
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