Full optical fiber optical optical tweezers system

Abstract

The present invention discloses an all-fiber tweezers system, connected at least by a laser, a first optical coupler, a second optical coupler, two fiber connectors, an emission power detecting module, a bias control module, an analog-to-digital converter, a digital-to-analog converter, and a control unit, wherein all optical devices are all-fiber devices, which is easier for coupling and connecting the optical devices and for integrating the system, and at the same time the reliability of the system is improved. Besides, the all-fiber tweezers system does not occupy the light portal of the microscope, thereby being convenient for researchers to allocate and utilize.

Description

【Technical field】 [0001] The invention relates to a control device utilizing optical means, in particular to an optical tweezers system. 【Background technique】 [0002] With the development of science and technology, human beings manipulate the microscopic world more and more frequently, so the demand for such tools is also increasing day by day, and laser tweezers, as one of the widely used tools, can be used to manipulate nanoparticles (Nanoparticles). ), nanowire (Nanowire), nanotube (Nanotube), biological macromolecules and cells, etc., so that humans can better understand the microscopic dynamic process and interaction, and arrange the microscopic research objects according to the needs. In the study of cells and biomolecules, biologists hope to see the interaction between molecules and cells, between cells and between molecules, and between molecules and molecules. These processes can be observed through the optical tweezers system, and even these interactions can be m...

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Problems solved by technology

[0004] The technology related to the microscope-based optical tweezers system has matured, but there are still inherent disadvantages in its structure, mainly as follows: the optical tweezers system uses many optical devices, resulting in relatively difficult coupling and connection between devices. Complicated, precise adjustment and collimation adjustment are more difficult, thereby reducing the reliability of the system, and the operation and maintenance of the system are more troublesome; the optical microscope is used as the main body of the optical tweezers system, which must occupy a light inlet of the optical microscope, which affects the microscope. The provision of light sources and lack of structural flexibility for research areas that require multiple manipulation functions

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