15 results about "Microstructure fiber" patented technology

A microstructured optical fiber including a core region and a cladding region which surrounds the core region. The cladding region includes a plurality of cladding features within a cladding background material, wherein the cladding region includes an inner cladding region with at least one inner ring of cladding features and an outer cladding region with at least three outer cladding rings of outer cladding features. The inner cladding features have a first characteristic diameter and the outer cladding region includes a plurality of outer cladding features having a characteristic diameter smaller than the first characteristic diameter. The first characteristic diameter is at least about 10% larger than an average diameter of the outer cladding features and the core region has a diameter of at least about 2 μm. A cascade optical fiber with at least one fiber as described, as well as a source of optical supercontinuum generation.

To extend the life of a supercontinuum light source. The present invention relates to an optical fiber comprising a core made of a core material and a cladding made of a cladding material, the optical fiber being a nonlinear microstructured optical fiber, which can be obtained by a method comprising a step of loading the core material and, optionally, the cladding material, and the lifetime of the optical fiber can be extended in high pulse applications.

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.

The application discloses a terahertz microstructure filter with a biosensing function, comprising a fiber base material, a fiber core and a cladding air hole arranged in the fiber base material, a filter sensing area arranged on the fiber base material, a graphene layer coated on the surface of the filter sensing area, and a metal electrode arranged on the outer side of the fiber base material and the graphene layer. The terahertz microstructure filter places the plasmonic material graphene and the sample to be measured on the side-polished and ground plane of the filter sensing area, avoids the complex process of coating film and filling analyte in the internal channel of the microstructure fiber, simplifies the filter unit structure, and adopts the cladding air hole as a circular hole with the same diameter, so that the terahertz microstructure filter has the advantages of simple structure, easy preparation and good mechanical stability compared with the fiber structure with a non-circular hole and simultaneously containing various holes with different diameters. The filter can also be used for sensing detection of liquid or solid biological samples, and has commercial application potential in the field of biosensing.

Disclosed is a coated ceramic fiber including a zirconium interface coating layer deposited on the ceramic fiber, a zirconium dioxide interface coating layer adjacent to the zirconium interface coating layer, and an additional interface coating layer adjacent to the zirconium dioxide interface coating layer, wherein zirconium dioxide interface coating layer forms micro cracks after a crystal structure transformation. The coated ceramic fiber may be included in a composite material having a ceramic matrix.

Disclosed is a coated ceramic fiber including a silicon carbide coating layer adjacent to the ceramic fiber and a silicon dioxide coating layer adjacent to the silicon carbide coating layer, wherein the silicon dioxide coating layer forms micro cracks after a crystal structure transformation. The coated ceramic fiber may be included in a composite material having a ceramic matrix.

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.

A hollow-core photonic crystal fiber (HC-PCF) assembly for converting input radiation into broadband radiation, the hollow-core fiber assembly comprising: a microstructured fiber having a hollow core that extends along a length of the fiber from an input end configured to receive the input radiation to an output end configured to output the broadband radiation, wherein the hollow core of the fiber is configured to contain a medium; and a density control system configured to control a density profile of the medium along at least a portion of the length of the fiber to establish a desired zero-dispersion wavelength profile along at least a portion of the length of the fiber.

According to the SPR refractive index sensor based on the double-C-type microstructure optical fiber and preparation of the SPR refractive index sensor, the sensor is of a cylinder structure, the cross section of the cylinder is of a double-C-type quasi-circular structure, and the SPR refractive index sensor comprises a silicon dioxide substrate, air circular holes, a gold thin film layer and a titanium dioxide thin film layer; the silicon dioxide substrate is of a double-C-shaped quasi-circular structure, the double-C-shaped quasi-circular structure is formed by polishing and grinding a section of C-shaped notch on each of two opposite side surfaces of the silicon dioxide substrate, four air circular holes are formed in the silicon dioxide substrate and are uniformly distributed in the double-C-shaped quasi-circular structure in a square shape, the metal thin film layer is attached to the outer side of the C-shaped notch, and the titanium dioxide thin film layer is attached to the outer side of the metal thin film layer. During preparation, the sensor is formed by drawing, drilling, stacking and assembling, stretching and polishing deposition in sequence, and the prepared sensor has good sensing application performance. The preparation method is simple in process flow, provides an important theoretical basis for the design of the microstructure optical fiber sensor, and has a good application prospect in the fields of biomedical detection, chemistry and chemical engineering analysis and the like.

Disclosed is a coated ceramic fiber including a zirconium interface coating layer deposited on the ceramic fiber, a zirconium dioxide interface coating layer adjacent to the zirconium interface coating layer, and an additional interface coating layer adjacent to the zirconium dioxide interface coating layer, wherein zirconium dioxide interface coating layer forms micro cracks after a crystal structure transformation. The coated ceramic fiber may be included in a composite material having a ceramic matrix.

A polarization-maintaining dispersion-compensation microstructure fiber includes an inner core, an air-hole array in area 1 and an air-hole array in area 2. The air holes in the area 1 and 2 air-hole arrays are arranged in square lattice. The air-hole arrays in areas 1 and 2 are dislocated by half-layer along y-direction. In area 1, 2 air holes in the middle row are omitted to form a solid area as the inner core. 2 outer cores are located in 2 sub-areas of area 2, and each outer core contains 2 air holes. The long (or short) axes of the inner and outer cores are perpendicular, and the center points of the inner core and the two outer cores are located on the x-axis.

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.