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Temperature compensation packaging device for fiber laser

A fiber laser and temperature compensation technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of inability to eliminate the frequency drift of fiber gratings, and achieve the effect of compensating for temperature rise expansion and improving frequency stability.

Inactive Publication Date: 2017-05-17
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology

However, when this packaging technology is applied to package the fiber grating in the fiber laser, it can only eliminate the influence of the ambient temperature, but cannot eliminate the frequency drift caused by the fiber grating itself.

Method used

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  • Temperature compensation packaging device for fiber laser
  • Temperature compensation packaging device for fiber laser
  • Temperature compensation packaging device for fiber laser

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with examples and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0022] see first figure 1 with figure 2 , figure 1 It is a structural block diagram of the fiber laser temperature compensation packaging device of the present invention, figure 2 It is a perspective view of the fiber laser temperature compensation packaging device of the present invention. It can be seen from the figure that the fiber laser temperature compensation packaging device of the present invention comprises a fiber laser 1 , a metal base 2 , a V-shaped groove 3 and a metal cover 4 . The fiber laser 1 is composed of a Bragg grating photoetched on an optical fiber at one end, the metal base 2 is made of a slender aluminum material, and the V-shaped groove 3 is formed on the metal base by machining 2, the fiber laser 1 can be embedded in the V-shaped groove 3 and main...

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Abstract

A temperature compensation packaging device for a fiber laser comprises a fiber laser, a metal base with a V-shaped groove and a metal cover plate; the fiber laser is composed of a Bragg fiber grating with one end photoetched to optical fiber, the fiber laser is embedded in the V-shaped groove and is in thermal contact with the V-shaped groove, and thermal expansion coefficient of the metal base is far higher than that of the metal cover plate. The temperature compensation technique for passive fiber gratings and the traditional packaging technique for fiber lasers are combined herein, the fiber laser is fixed to a metal structure in order to ensure its reliability and provide temperature compensation effect, the properties of the fiber laser are further improved, and the demands for related scientific research fields and engineering applications can be better met.

Description

technical field [0001] The invention relates to a fiber laser, in particular to a temperature compensation packaging device for a fiber laser. The technology can be applied to fields such as fiber optic sensing, laser radar, and high-resolution laser spectroscopy. Background technique [0002] In recent years, fiber laser technology has developed rapidly, the performance of fiber laser has been continuously improved, and its application has become more and more extensive. Due to its advantages of small size, narrow line width, and convenient use, fiber lasers are widely used in fiber optic sensing, lidar, high-resolution laser spectroscopy, and other fields. These application fields have high requirements on the reliability, structural stability and noise characteristics of fiber lasers. The Bragg grating in a general fiber laser is susceptible to environmental disturbances, and the length of the grating will expand with the increase of temperature, which will seriously deg...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/102
CPCH01S3/06704H01S3/1028
Inventor 应康陈迪俊陈高庭杨飞蔡海文魏韦蔡圣闻
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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