Liquid optical phase modulator with configurable adjusting range and precision

A technology of adjustment range and phase modulator, applied in the field of optical phase modulation, can solve the problems of small phase modulation range, low precision, complex structure, etc., and achieve the effect of configurable adjustment range and precision

Active Publication Date: 2022-07-29
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the shortcomings of the traditional phase modulator above, the present invention provides a liquid optical phase modulator with simple operation, low energy consumption, configurable adjustment range and precision. High and low energy consumption, which solves the problems of complex structure, high cost, low phase modulation range and low precision in the prior art

Method used

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  • Liquid optical phase modulator with configurable adjusting range and precision
  • Liquid optical phase modulator with configurable adjusting range and precision
  • Liquid optical phase modulator with configurable adjusting range and precision

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Experimental program
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Embodiment 1

[0054] like Figure 4-5 As shown, the present invention is a liquid optical phase modulator with configurable adjustment range and precision. The liquid optical phase modulator includes a solid inner core cavity 1, a transparent upper cover sheet 2 and a transparent lower cover sheet 3. The The transparent upper cover sheet 2 and the transparent lower cover sheet 3 are arranged in parallel, and the upper and lower transparent cover sheets are made of transparent acrylic glass sheets. The body can be a glass core cavity made of quartz sand, limestone, feldspar, soda ash, boric acid and other glass raw materials through high temperature. The splicing of the upper and lower circular cones is defined as the splicing interface. The side wall of the circular table is made separately with the splicing interface as the boundary. After the upper part is fabricated, the inner wall of the solid core cavity is coated with a Teflon hydrophobic layer 12 , and the included angle between th...

Embodiment 2

[0056] like Figure 6-7 As shown, the present invention is a liquid optical phase modulator with configurable adjustment range and precision. The liquid optical phase modulator includes a solid inner core cavity 1, a transparent upper cover sheet 2 and a transparent lower cover sheet 3. The The transparent upper cover sheet 2 and the transparent lower cover sheet 3 are arranged in parallel, and the solid inner core cavity is formed by splicing two prism side walls up and down by splicing isosceles trapezoid surfaces, such as Image 6 As shown, the solid inner core cavity is made of PLA material through 3D printing. First, the drawings are made with drawing software such as CAD, and then the finished product is printed with a 3D printer. The angle α between the isosceles trapezoid side wall and the top surface of the side wall of the upper prism formed by splicing isosceles trapezoid surfaces 1 Equal to the contact angle θ of liquid 1 - liquid 2 - frustum side wall 1 1 , to e...

Embodiment 3

[0058] like Figure 8-9 As shown, the present invention is a liquid optical phase modulator with configurable adjustment range and precision. The liquid optical phase modulator includes a solid inner core cavity 1, a transparent upper cover sheet 2 and a transparent lower cover sheet 3. The The transparent upper cover sheet 2 and the transparent lower cover sheet 3 are arranged in parallel, and the solid inner core cavity 1 is formed by splicing up and down the side walls of the prism which are spliced ​​by the side walls of a circular truncated table and an isosceles trapezoid surface, such as Figure 8 As shown, the solid inner core cavity 1 is made of the upper and lower parts by 3D printing PLA material, and the two parts are tightly adhered together by Kesemi 540AB glue. The inner wall of the solid inner core cavity 1 is coated with a polyolefin hydrophobic layer to improve the contact angle by hydrophobic modification. The angle α between the side wall of the truncated ...

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Abstract

The invention relates to a liquid optical phase modulator with configurable adjusting range and precision, which comprises a solid inner core cavity, a transparent upper cover plate and a transparent lower cover plate, the solid inner core cavity is sealed by the transparent upper cover plate and the transparent lower cover plate which are parallel to each other to form a phase adjusting liquid cavity, and three liquids are stored in the phase adjusting liquid cavity as phase adjusting liquids. Liquid injection holes are formed in the inner cavity surface of the solid inner core cavity corresponding to each phase adjusting liquid, the liquid injection holes are connected with an external force adjusting device, and the height ratio of the liquid in the solid inner core cavity in the light passing direction is changed through the external force adjusting device, so that the optical path of a light beam penetrating through the liquid is changed, and optical phase adjustment is achieved; the adjustment range and the adjustment precision can be configured by configuring the refractive index difference of the liquid in the cavity of the solid inner core. The horizontal liquid level is constructed by utilizing the property that the contact angle is not changed, a thin film does not need to be additionally arranged, the structure is simple, precision is high, and application prospects in the fields of optical synthetic aperture imaging and optical information processing are achieved.

Description

technical field [0001] The invention relates to an optical phase modulation method, belonging to the technical field of optical imaging and optical information processing devices, in particular to a liquid optical phase modulator with wide adjustment range and freely configurable adjustment precision. Background technique [0002] Optical phase modulation technology has a very wide range of applications in the fields of optical communication, optical signal processing, optical device integration, microwave signal processing and optical imaging. At present, the mainstream technologies of optical phase modulation include phase modulation technology based on waveguide optical modulation and phase modulation technology based on mechanical modulation. The phase modulation technology based on waveguide optical modulation uses the electro-optic effect of the medium to change the mode in the waveguide, so that the phase of the output light changes to achieve the purpose of phase mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/06
CPCG02B26/06
Inventor 陈陶陈琪瑞郑培涛梁忠诚丁天心孙靖怡陈悦孔梅梅
Owner NANJING UNIV OF POSTS & TELECOMM
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