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A device for optical system dispersion compensation and its manufacturing method

A dispersion compensation and optical system technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem of small dispersion of prisms, and achieve the effect of easy arrangement, simple structure and high dispersion value

Active Publication Date: 2021-03-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a device and method for dispersion compensation of an optical system to solve the technical problem that the amount of dispersion provided by the prism in the prior art is small

Method used

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  • A device for optical system dispersion compensation and its manufacturing method
  • A device for optical system dispersion compensation and its manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0033] figure 1 The optical path route of the double prism structure and light is shown, including two identical first isosceles prisms 10 and second isosceles prisms 34, on the bottom surface of the first isosceles prisms 10 and the second isosceles prisms 34 The bottom surface is respectively provided with a first grating 12, a second grating 35, and the interface surfaces of the first isosceles prism 10, the second isosceles prism 34 and the first grating 12, the second grating 35 are the first interface surface 14, the second interface surface respectively. The interface 21, the first isosceles prism 10 and the second isosceles prism 34 are flexibly connected at the position of the apex 33, the first isosceles prism 10, the first grating 12, the second isosceles prism 34 and the second grating 35 form the second a double prism 40;

[0034] The left sides of the first isosceles prism 10 and the second isosceles prism 34 are respectively the first incident surface 11 and th...

Embodiment 2

[0045] A method for dispersion compensation of an optical system, comprising the steps of:

[0046] a. According to the requirements of dispersion control, determine the required group velocity dispersion, third-order dispersion value and corresponding dispersion ratio TOD / GVD;

[0047] b. Select gratings and prisms that can meet the above-mentioned group velocity dispersion, third-order dispersion value and corresponding dispersion ratio TOD / GVD requirements;

[0048] c. Optimize the design of grating constants and prism materials according to the types of components available in the market;

[0049] d. Glue or fix the grating on the bottom of the prism, adjust the angle between the vertices of the prism pair, and design the double prism pair to meet the set dispersion ratio.

[0050] In the ultra-short and ultra-intense optical system, according to the material dispersion to be compensated, the dispersion of the stretcher or compressor, etc., firstly, in step a, the specifi...

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Abstract

The invention discloses a device for dispersion compensation of an optical system and its production method. The device comprises two same dual-beam bars; each of the dual-beam bar comprises an inletprism with an inlet surface and an optical grate interface, an outlet prism with an outlet surface and an optical grate interface, and two reflecting grates arranged at the bottom face of the prism; the outlet surface of the prism is not in parallel to the reflecting grates; when light is transmitted in the dual-beam grate, negative group velocity dispersion and negative three-order color dispersion are provided, and high-magnitude color dispersion value is provided.

Description

technical field [0001] The invention relates to the technical field of dispersion compensation of optical pulses, in particular to a device for dispersion compensation of an optical system and a manufacturing method thereof. Background technique [0002] Many industries and scientific research fields require the use of ultra-short and ultra-intense pulses, and the pulse width is even as low as a few femtoseconds. In commonly used ultrashort and ultraintense pulse generation technologies, such as chirped pulse amplification (CPA) and optical parametric chirped pulse amplification (OPCPA), the system usually consists of a stretcher, an amplifying medium, and a compressor. The stretcher stretches the optical pulse in the time domain, reduces the peak energy, and avoids laser damage. Usually, the stretching factor can be as high as 10 4 ; Then the amplifier amplifies the stretched pulse, and finally uses the compressor to compress the amplified light pulse in the time domain. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02B27/00
CPCG02B27/0012G02F1/35
Inventor 苏娟李菊芬刘忠华魏涛
Owner SOUTHWEST PETROLEUM UNIV
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