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Calibration device and method for digital optical phase-phase inverter

A technology of optical phase inversion and phase inversion, which is applied in the field of adaptive optics, can solve the problems of insufficient versatility, and achieve the effects of strong versatility, compact overall size and simple structure

Inactive Publication Date: 2016-07-06
CHINA JILIANG UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0007] The invention provides a calibration method for a digital optical phase-phase inverter, which simplifies the calibration steps and overcomes the problem of insufficient versatility of the original method

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  • Calibration device and method for digital optical phase-phase inverter
  • Calibration device and method for digital optical phase-phase inverter
  • Calibration device and method for digital optical phase-phase inverter

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Embodiment Construction

[0055] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited thereto.

[0056] Such as figure 1 Shown is the schematic diagram of the structure of the digital optical phase inverter 6 involved in the present invention, including:

[0057] A beam splitting prism 61 , a digital camera 62 (that is, an optical phase inverter digital camera), a spatial light modulator 63 , a first adjustment device 64 and a second adjustment device 65 .

[0058] Wherein, the beam splitting prism 61 can perform 50-50 splitting of the incident light; the first adjusting device 64 is responsible for adjusting the spatial position and inclination of the digital camera 62, and the second adjusting device 65 is responsible for adjusting the spatial position and inclination of the spatial light modulator 63; The pixels of the digital camera 62 and the spatial light modulator 63 are equal in size and ...

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Abstract

The invention discloses an adjustment device for a digital optical phase-phase inverter, which comprises: a light source module for providing collimated light with a short coherence length; an object stage for placing the digital optical phase-phase inverter; A striped digital camera; a reflective imaging optical path module for adjusting the position of the digital camera; a mirror for switching the optical path between the digital camera and the reflective imaging optical path module; wherein, the entire optical path is centered on the stage The points are distributed in an L-shaped right angle. The invention also discloses a method for adjusting the digital optical phase-phase inverter. Since it is equal-magnitude imaging, only one positioning is required to ensure the relative lateral position coincidence and pixel alignment of the optical phase-phase inverter digital camera and the spatial light modulator. One-to-one correspondence, and gradually increase the number of grids in the checkerboard pattern, so that the border is gradually dense, repeated adjustments, increase the lateral positioning accuracy, in order to ensure the final performance of the digital optical phase inverter.

Description

technical field [0001] The invention relates to the field of adaptive optics, in particular to a device and method for adjusting a digital optical phase-phase inverter. Background technique [0002] Light scattering has always been one of the major challenges in the design of optical imaging systems. Due to the light scattering caused by the irregularity of the refractive index, it will increase the background noise of the system and bring additional wave aberration, and then affect the resolution and contrast of optical imaging, which has been seriously affecting astronomical telescopes and microscopes The imaging quality of many optical imaging systems. [0003] In order to solve the above problems, people have developed the concept of so-called adaptive optics since the 1950s, through the artificial correction of the light wavefront connected to the light field, to reduce the impact of scattering and improve the imaging quality. After decades of development, the current...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00
Inventor 李旸晖陈龙芮丛珊史召邑
Owner CHINA JILIANG UNIV
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