Throughput type fiber optical tweezers based on coaxial dual-waveguide structure and preparation method

A technology of optical fiber optical tweezers and micro-structured optical fiber, which is applied in the coupling of optical waveguides, multi-layer core/clad optical fibers, clad optical fibers, etc., to achieve the effects of improving practicability, flexible capture, and adjustable

Inactive Publication Date: 2010-12-08
HARBIN ENG UNIV
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Problems solved by technology

Since then, the optical tweezers based on circular multi-core optical fiber has been disclosed, the publication number is CN101236275; and the multi-optical tweezers integrated in a single optical fiber, the publication number is CN

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  • Throughput type fiber optical tweezers based on coaxial dual-waveguide structure and preparation method
  • Throughput type fiber optical tweezers based on coaxial dual-waveguide structure and preparation method
  • Throughput type fiber optical tweezers based on coaxial dual-waveguide structure and preparation method

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Embodiment Construction

[0023] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0024] figure 1 It is a schematic diagram of the system structure of the throughput fiber optic tweezers based on the coaxial dual waveguide microstructured fiber. In the figure, 1 is a coaxial dual waveguide fiber, 101 is a ring core, 102 is an axial core, the two are distributed concentrically, 2 and 3 are system light sources with two wavelengths, 4 is a wavelength division multiplexing device, and 5 is an ordinary Standard single-mode single-core optical fiber, 7 is the connection position of the single-core optical fiber and the coaxial dual-waveguide optical fiber fusion tapered coupling, 103 is the fiber end finely ground for the capture of tiny particles.

[0025] figure 2 It is a schematic diagram of the cross-sectional structure of the coaxial dual-waveguide fiber. In the figure, 1 is a coaxial dual-waveguide fiber, 101 is a ring core, 102 is an axia...

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Abstract

The invention provides throughput type fiber optical tweezers based on a coaxial dual-waveguide structure and a preparation method. The throughput type fiber optical tweezers mainly comprise a coaxial double-waveguide microstructure fiber [1], an LD light source with the output wavelength of lambda 1, an LD light source [3] with the output wavelength of lambda 2, a wavelength division multiplexing device [4] and a standard single-mode fiber [5]),wherein the output ends of the light source [2] and the light source [3] are connected with the two input ends of the wavelength division multiplexing device [4]; the output end of the wavelength division multiplexing device [4] is coupled with the coaxial double-waveguide fiber [1]; and the other end of the coaxial double-waveguide fiber [1] is finely ground to obtain the cone structure. The invention controls the particles by utilizing the coaxial double-waveguide fiber, changes the luminous power of the light source by adjustment, and can realize throughput, transmission and resorption of stable trapped particles; and meanwhile, the invention can trap the particles in a more flexible and accurate way, has adjustability, and greatly enhances the practicality of the fiber optical tweezers.

Description

technical field [0001] The invention relates to an optical fiber optical tweezers. The invention also relates to a preparation method of optical fiber optical tweezers. Background technique [0002] Optical tweezers are tools for trapping and manipulating tiny particles using the gradient force and scattering force of light intensity distribution. In 1986, Askin proposed a three-dimensional optical potential well based on a single-beam laser in the article "Observation of a single-beam gradient force optical trap for dielectric particles", which is used to realize the three-dimensional space control of particles, because this beam can achieve spatial The clamping of tiny particles, hence the name "optical tweezers", this article was published in Opt.Lett.11, 288-290. Since then, the optical tweezers technology has developed rapidly and has become an important research technology, and has promoted the rapid development of several interdisciplinary fields. For example, it h...

Claims

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Application Information

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IPC IPC(8): G02B6/26G02B6/036G02B6/25G21K1/00
Inventor 苑立波张羽杨军
Owner HARBIN ENG UNIV
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