Adjustable high-power laser attenuator

A laser attenuation and power technology, applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of not being continuously adjustable, being bleached, and not suitable for high-power applications, and achieving simple structure, easy manufacture, and high attenuation The effect of continuous regulation

Inactive Publication Date: 2011-05-11
FUZHOU PHOTOP QPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they have the following shortcomings: the attenuation of laser power by using absorbing neutral glass as the attenuator will be bleached at higher power, and cannot be continuously adjusted; the attenuation of laser power by ordinary dielectric films, although the power attenuation Can be continuously adjusted and can also withstand irradiation at a certain power, but not suitable for higher power applications

Method used

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  • Adjustable high-power laser attenuator
  • Adjustable high-power laser attenuator
  • Adjustable high-power laser attenuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 , 2 As shown, an adjustable high-power laser attenuator includes a base 1, an upper part of the base 1 is an inclined surface 11; also includes a holder 2, an optical etalon 3; the holder 2 is glued and fixed on On the inclined surface 11, a groove 21 is provided on the upper part of the holder 2. The groove 21 is adapted to the shape of the optical etalon 3 and is suitable for embedding the optical etalon 3; It is an electro-optical material, which is embedded in the groove 21 on the upper part of the holder 2.

[0019] When the incident light of the high-power laser is incident on the electro-optical material, the refractive index of the electro-optical material to the incident light changes under the action of an external electrical signal, thereby changing the transmittance of the electro-optical material to the incident light, and achieving light attenuation the goal of. In addition, the attenuation of the high-power laser by the electro-optical mate...

Embodiment 2

[0021] Such as figure 1 , 2 As shown, an adjustable high-power laser attenuator includes a base 1, the upper part of the base 1 is an inclined surface 11; also includes a holder 2, an optical etalon 3; the holder 2 is fixed on the On the inclined surface 11, a groove 21 is provided on the upper part of the holder 2. The groove 21 is adapted to the shape of the optical etalon 3 and is suitable for embedding the optical etalon 3; It can be a thermo-optical material, which is embedded in the groove 21 on the upper part of the holder 2.

[0022] When the incident light of the high-power laser is incident on the thermo-optical material, under the action of the external heating source, the thermo-optical material changes its refractive index to the incident light, thereby changing the transmittance of the thermo-optical material to the incident light to achieve The purpose of light attenuation. In addition, the attenuation of the high-power laser by the thermo-optical material can be ...

Embodiment 3

[0024] Such as figure 1 , 2 As shown, an adjustable high-power laser attenuator includes a base 1, an upper part of the base 1 is an inclined surface 11; also includes a holder 2, an optical etalon 3; the holder 2 is glued and fixed on On the inclined surface 11, a groove 21 is provided on the upper part of the holder 2. The groove 21 is adapted to the shape of the optical etalon 3 and is suitable for embedding the optical etalon 3; It is an electrostrictive material, which is embedded in the groove 21 on the upper part of the holder 2.

[0025] When the incident light of the high-power laser is incident on the electrostrictive material, the shape of the electrostrictive material undergoes expansion and contraction under the action of the external electric field, which causes the incident angle of the incident light to change, thereby changing the electrostrictive material. The transmittance of the elastic material to incident light achieves the purpose of light attenuation. In ...

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Abstract

The invention relates to an adjustable high-power laser attenuator which comprises a base, a clamper and an optical etalon, wherein the upper part of the base is an inclined surface; the clamper is adhesively or mechanically fixed on the inclined surface, the upper part of the clamper is provided with a groove, and the groove is matched with the shape of the optical etalon, so that the optical etalon can be embedded in the groove; and the optical etalon can be made of an electrooptic material, a thermooptic material or an electrostriction material. Compared with the prior art, the invention has the following advantages: since the optical etalon is made of the electrooptic material, thermooptic material or electrostriction material, the optical etalon can change the refractive index of incident light or the shape of the optical etalon is stretched so as to change the incident angle of incident light under the action of external electric signals or an external heat source, thereby changing the transmittance of the incident light through the optical etalon so as to achieve the purpose of optical attenuation. The adjustable high-power laser attenuator has a simple structure, is easy to manufacture and can be used for continuously adjusting the attenuation degree of the high-power laser.

Description

Technical field [0001] The patent of the invention belongs to the field of laser application technology equipment, and specifically relates to an adjustable high-power laser attenuator. Background technique [0002] Optical attenuator is an important fiber optic passive device that has emerged with the development of optical communication technology. It is a commonly used device in optics, especially laser modulation and application technology. Its function is to attenuate the light intensity to a certain degree. , Can be used for optical communication lines, system evaluation, research and adjustment, calibration, etc. In the prior art, the laser attenuators used generally include dielectric films, gratings, optical wedges, and absorption attenuators. However, they have the following shortcomings: the use of absorbing neutral glass as the attenuation sheet to attenuate the laser power will be bleached at higher power and cannot be continuously adjusted; the use of ordinary diel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/01
Inventor 吴砺任策
Owner FUZHOU PHOTOP QPTICS CO LTD
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