A Two-Dimensional Tunable Beam Direction Control Method Based on Fluid Optical Waveguide

An optical waveguide and fluid technology, which is applied in the field of tunable beam direction control, can solve the problems of low integration, large size, poor control flexibility, etc., and achieve real-time adjustment of angle and focal length, and the effect of adjustable angle and focal length

Active Publication Date: 2018-07-06
ZHEJIANG UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies of existing microlenses that require an external precision mechanical structure to achieve lens beam direction tuning, complex structure, large size, difficult fabrication, poor control flexibility, and low integration, the present invention provides a high-integration, simple-structure , two-dimensional tunable beam direction control method based on fluid optical waveguide, which is convenient to manufacture and low in cost

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  • A Two-Dimensional Tunable Beam Direction Control Method Based on Fluid Optical Waveguide
  • A Two-Dimensional Tunable Beam Direction Control Method Based on Fluid Optical Waveguide
  • A Two-Dimensional Tunable Beam Direction Control Method Based on Fluid Optical Waveguide

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] refer to Figure 1 to Figure 5 , a two-dimensional tunable beam direction control method based on a fluid optical waveguide, the beam direction control method uses a fluid microlens, the fluid microlens includes a fluid optical waveguide 1, an incident laser 2 and a beam receiving surface 3, the fluid The optical waveguide 1 is provided with a channel for carrying microfluids, and the channel includes a core fluid inlet 4, four cladding fluid inlets 5, a fluid microcavity 6, and two upper and lower fluid outlets 7. Two cladding fluid inlets are arranged symmetrically with the central axis of the microcavity, and the upper and lower two cladding fluid inlets and the upper and lower two fluid outlets are all symmetrically arranged with the central axis of the microcavity. The core fluid inlet 4, the four cladding fluids The inlets 5 are all communicated with the ...

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Abstract

Provided is a two-dimensional tunable light beam direction regulation method based on fluid optical waveguide. A used fluid micro lens comprises a fluid optical waveguide, an incident laser, and a light beam receiving surface. The fluid optical waveguide is provided with a flow pass used to hold microfluid. A core layer fluid inlet, and four cladding fluid inlets on the up, down, left, and right sides are communicated with the inlet of a fluid micro-cavity. The outlet side of the fluid micro-cavity is connected with two fluid outlets. The fluid outlets are communicated with an effluent fluid reservoir. The two-dimensional tunable light beam direction regulation method comprises: through adjusting flow velocity ratio of two cladding fluids of the left cladding fluid and the right cladding fluid, realizing left-right offset of center refractive index, through adjusting flow velocity ratio of two cladding fluids of the upper cladding fluid and the lower cladding fluid, realizing up-down offset of the center refractive index, through adjusting flow velocity ratio of the left cladding fluid and the right cladding fluid and the flow velocity ratio of the upper cladding fluid and the lower cladding fluid, realizing offset of the center refractive index in any direction on an output plane. The method can be tuned dynamically, and is high in integration level, simple in structure, convenient in manufacturing, and low in cost.

Description

technical field [0001] The invention relates to the technical field of beam shaping, in particular to a method for controlling the direction of a tunable beam. Background technique [0002] The beam shaping technology includes focusing, collimation, deflection, beam splitting, coupling, etc. of the beam. Usually, adjusting the refractive index distribution of the optical medium can easily realize the focusing, collimation, deflection, beam splitting, etc. of the incident beam. control. The rapid development of microfluidic optical technology in recent years has provided us with a new method of beam shaping. The principle is to control the microscopic scale of light by controlling the fluid flow (Mao X, Lin SS, Lapsley MI, Shi J, Juluri BK , Tunableliquid gradient refractive index (L-GRIN) lens with two degrees of freedom, Lab.Chip.,9(2009):2050-2058, Tunable liquid gradient refractive index lens with two degrees of freedom adjustment capability, Lab on a Chip , 9(2009):205...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02F1/295G02B6/10
CPCG02B6/10G02F1/295
Inventor乐孜纯孙运利
OwnerZHEJIANG UNIV OF TECH