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Single longitudinal mode and full solid-state bluish violet light laser

A laser and single longitudinal mode technology, applied in the direction of lasers, laser parts, phonon exciters, etc., can solve the problems of affecting output power, power fluctuation, and large space range of mode selection, so as to achieve narrow linewidth output and improve Output efficiency, effect of reducing insertion loss

Inactive Publication Date: 2006-12-27
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the ordinary Ti:sapphire laser with single longitudinal mode output adopts a straight cavity structure, and the range of mode selection space is large, which undoubtedly increases the difficulty of mode selection, and there are insertion losses of devices such as birefringent filters and F-P etalons. , affecting the output power
Moreover, the single longitudinal mode output obtained by the above device is not stable, because the birefringent crystal wave plate is very sensitive to temperature changes, so strict temperature control measures must be applied, otherwise it will cause large power fluctuations or even jumps. mode; moreover, this device can only obtain a wavelength light source

Method used

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  • Single longitudinal mode and full solid-state bluish violet light laser
  • Single longitudinal mode and full solid-state bluish violet light laser
  • Single longitudinal mode and full solid-state bluish violet light laser

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Embodiment Construction

[0018] see first image 3 , image 3 The optical path structure diagram of the best embodiment of the single longitudinal mode all-solid-state blue-violet laser of the present invention, as can be seen from the figure, the single longitudinal-mode all-solid-state blue-violet laser of the present invention includes a single longitudinal mode extracavity frequency-multiplied Nd:YAG laser 1, in which In the laser output direction of 1, a plane mirror 2, a λ / 2 quartz wave plate 3, a focusing lens 4, and a λ / 2 quartz wave plate 3 (λ= 532 nanometers), which plays the role of rotating the polarization state of the light; the focusing lens 4 makes the energy density of the pumping light reach the threshold requirement; the titanium sapphire laser 7 is characterized in that the laser output of the titanium sapphire laser 7 is divided into two paths, one path The first shading plate K1 enters the sum frequency crystal 8 for output; the other channel passes through the frequency doublin...

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Abstract

It is a single-longitudinal model solid purplish blue laser composed of single-longitudinal model exocoel frequency multiplier Nd:YAG laser, plane lens, lambda / 2 quartz wavepad, focus lens, titanium diamond laser. It is characterized by the following: the titanium diamond laser adopts three-lens right angle ring chamber structure composed of high reverse back cavity lens, forty-five degree incidence reflection lens, titanium diamond crystal and output cavity lens. The titanium diamond laser output is divided into two paths, wherein, one goes in through first blind plate and out through frequency crystal, the other one goes in through frequency multiplier crystal and second blind plate and out through frequency crystal.

Description

technical field [0001] The invention belongs to a semiconductor laser pumped all-solid-state laser, in particular to a single longitudinal mode all-solid-state blue-violet laser. Background technique [0002] The all-solid-state laser pumped by laser diode (LD) has high conversion efficiency, compact structure and long life, and has a wide range of applications in many fields. The use of lidar to dynamically monitor changes in urban air pollution is one of its applications. [0003] Laser measurement of air pollution requires wavelength-tunable narrow-linewidth single-longitudinal-mode laser sources. There are many ways to obtain a single longitudinal mode laser output, and the more commonly used ones are tuning mode selection through birefringence filters (Lyot ​​filters), and F-P etalons to narrow the linewidth. The birefringent filter is usually composed of two parts, one is the birefringent crystal wave plate, and the frequency doubling crystal (such as KTP) generally p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/082H01S3/16H01S3/108H01S3/00
Inventor 陈卫标毕进子余婷崔俊文
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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