Intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection

An intra-cavity frequency doubling and laser technology, which is applied in lasers, phonon exciters, laser parts, etc. to reduce thermal focal length, increase average power and single pulse energy, and achieve the effect of small size

Inactive Publication Date: 2012-08-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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However, so far, there is no report on intracavity frequency-doubling 532nm single longitudinal mode lasers injected by seed light

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  • Intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection
  • Intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection
  • Intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection

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Embodiment Construction

[0028] The patent will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0029] first please refer to figure 1 , figure 1 It is the whole optical system block diagram of the laser of the present invention. It can be seen from the figure that the intracavity frequency doubling 532nm single longitudinal mode laser device for seed light injection of the present invention has a structure including four parts: an extracavity seed optical path 1, a U-shaped driven resonator 2, electrical control processing 3 and intracavity frequency doubling 4 :

[0030] The described extracavity seed optical path part 1 is sequentially composed of seed laser 1-1, isolator 1-2, half-wave plate 1-3, first 1 / 4 wave plate 1-4, coupling lens group 1-5, 1- 6. Composed of the first reflector 1-7 and the second reflector 1-8;

[0031] The U-shaped driven resonator cavity part 2 is...

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Abstract

The invention relates to an intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection. A resonance detection method is used for obtaining 1064nm single-frequency pulse laser for seed injection is obtained and 532nm single-longitudinal-mode pulse laser is obtained through intracavity frequency doubling. A laser resonant cavity is a U-shaped cavity. Two high-peak-power laser diodes (LD) are used for pumping laser crystals from an end surface, a high-precision thermoelectric cooler is used for controlling the temperature of the laser crystals and green light output is obtained through intracavity lithium triborate (LBO) frequency doubling. The intracavity-frequency-doubling 532nm single-longitudinal-mode laser based on seed light injection has the characteristics of high efficiency, high energy, conduction cooling, narrow line width, high frequency stability, compact structure and high working stability.

Description

technical field [0001] The invention relates to an all-solid-state laser, in particular to an intracavity frequency-doubling 532nm single longitudinal mode laser injected with seed light. Background technique [0002] The three-dimensional atmospheric wind field information data can greatly improve the accuracy of numerical weather forecasting in military and civilian areas, especially in the fields of military and civil aviation, ground-to-air, etc., has broad application prospects. Doppler lidar is a very effective means to measure the distribution of atmospheric wind speed field. Compared with traditional wind radar, it has the characteristics of fast, accurate and high resolution. The core and most important part of Doppler lidar is the 532nm single-frequency pulsed laser source. Therefore, the invention of an intracavity frequency-doubling 532nm single longitudinal mode laser with reliable performance and compact structure is of great significance for earth science rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/0941H01S3/08H01S3/109
Inventor 朱小磊王君涛陆婷婷臧华国刘丹
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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