6 results about "Microstructure fiber" patented technology

The invention discloses a microstructure fiber and a preparation device and method.The microstructure fiber comprises a first fiber layer, a second fiber layer and a cavity, and the first fiber layer and the second fiber layer are arranged to be of a folded structure; the first fiber layer and the second fiber layer are both of a wrinkle structure periodically distributed in the axial direction of the microstructure fiber. The cavity is located between the first fiber layer and the second fiber layer and continuously extends in the axial direction of the microstructure fiber, so that the effective specific surface area of the microstructure fiber can be increased; compared with an existing solid wrinkled fiber structure, the continuous hollow cavity is formed in the middle, the cavity can keep the penetrability of a core layer runner all the time, and the interior of the microstructure fiber can be freely filled with functional fluid.

A dispersion-compensation microstructure fiber uses pure silica glass as the background material. It includes the core, the first-type defects, the second-type defects and the cladding. The air holes in the fiber cross section are arranged in the equilateral triangle lattice with the same adjacent air-hole to air-hole spacing. The core is formed by omitting 1 air hole. The first-type defects are formed by the 6 air holes locating at the vertices of hexagonal third-layer porous structure surrounding the core and their surrounding background material. The second-type defects are formed by the air holes in the first air-hole layer surrounding each first-type defect and their surrounding background material. The second-type defects act as the porous structure to surround the first-type defects and the fundamental defect modes, and can also combine with the first-type defects to act as the core of the second-order defect modes.

This application discloses a method for detecting CHI3L1 protein based on microfluidic fiber optic sensing, belonging to the field of biomedical detection technology. The method includes: providing a microstructured fiber optic sensing unit with a through-flow microfluidic channel; immobilizing a CHI3L1 protein-specific antibody on the inner surface of the microfluidic channel; injecting the sample to be tested into the channel, causing the CHI3L1 protein to be specifically captured; and achieving quantitative detection of the CHI3L1 protein by detecting the drift of fiber optic transmission spectral characteristic parameters caused by antigen-antibody binding. This invention combines microfluidics with fiber optic sensing, utilizing antibody immobilization on the inner wall of the microfluidic channel to increase the interaction efficiency between the light field and biomolecules, significantly improving detection sensitivity. It has the advantages of rapid detection, low sample consumption, and label-free operation, making it suitable for early non-invasive screening and dynamic monitoring of clinical liver fibrosis.

The application discloses a time division multiplexing system and method based on a microstructure optical fiber EFPI hydrophone, and the system comprises a tunable laser, a continuous light with continuously switched wavelengths is outputted; an acousto-optic modulator, the continuous light is chopped into time division multiplexing pulse light; a time division multiplexing component, comprising a time division multiplexing sensing array based on the microstructure optical fiber EFPI hydrophone, time division multiplexing interference pulse light with sensing information is outputted; and an optical receiving unit, the time division multiplexing interference pulse light is received and demodulated. The microstructure optical fiber EFPI sensor has the advantages of simple and compact structure, high sensitivity, small volume and large-scale manufacturing, and is a new way to realize miniaturization of the optical fiber hydrophone. The application is applied to the field of the optical fiber hydrophone, when the tunable laser emits a series of continuously switched light at a fixed step, the signal light of each wavelength can generate an interference signal through a time division multiplexing array element, and large-scale time division multiplexing of the optical fiber EFPI hydrophone based on the microstructure is realized.

The utility model discloses an acid dissolution device for a microstructure optical fiber bundle, and belongs to the technical field of optical fiber preparation. Comprising a soaking device used for soaking the microstructure optical fiber bundle and a lifting device used for lifting and falling the microstructure optical fiber bundle. The soaking device is arranged below the lifting device and comprises a first soaking device, a second soaking device and a third soaking device which are movably arranged in parallel; the first soaking device, the second soaking device and the third soaking device are respectively filled with an acid soaking solution, a pure water soaking solution and an impregnating compound soaking solution; the lifting device comprises a hanging bracket, a fixed pulley arranged on the hanging bracket, a steel wire rope, a hook and a rope disc, one end of the steel wire rope is wound on the rope disc, and the other end bypasses the fixed pulley to be connected with the hook. The acid dissolution quality and the production efficiency can be improved, and the problem of high rejection rate caused by manual taking is effectively avoided.

The application discloses a laser shaping device based on a microstructure optical fiber output end face, relates to the technical field of laser shaping, and discloses the laser shaping device based on the microstructure optical fiber output end face, which comprises an optical fiber, the optical fiber has an input end face, a transmission section and an output end face in sequence, the input end face is used for being fixedly connected with a laser generator and receiving a laser beam emitted by the laser generator, the transmission section can transmit the laser beam on the input end face to the output end face, the output end face is provided with a plurality of microstructure units, and all the microstructure units can cooperatively control the light intensity distribution and / or the spot shape of the laser beam; the laser shaping device based on the microstructure optical fiber output end face disclosed by the application has the advantages of simple structure, high integration degree and high efficiency and low loss.