396 results about "Fusion splicing" patented technology

Fiber optic connectors having an optical fiber stub that is fusion-spliced for optical connection and related tools for the fiber optic connectors are disclosed. Specifically, the connector assembly for fusion-splicing includes a fiber optic connector having an optic fiber stub and a boot attachable to the fiber optic connector. The boot is configured to transfer the majority of the axial force from the fiber optic cable to the fiber optic connector. Specifically, a splice housing for housing the fusion splice is configured for attachment to an end of the boot for transferring forces from the fiber optic cable to the boot. Consequently, the boot preferably has an extensibility of less than about 2 millimeters under an axial load of about fifteen pounds to inhibit excess forces from acting on the optical fiber stub.

The present invention relates to an optical module having a structure for reducing adverse contingencies such as increased number of fusion splicing points, drops in output, and higher costs associated with a greater number of optical components. The optical module comprises an amplification optical fiber, a transmission optical fiber, and a fusion splicing structure that fusion-splices the amplification optical fiber to the transmission optical fiber, in a state where a cover layer is removed at the tip portions, including the end faces, of these optical fibers. The fusion splicing structure includes a pumping light removing resin that covers directly the tip portions of the amplification optical fiber and the transmission optical fiber from which the cover layer is removed. The pumping light removing resin has a higher refractive index than a first cladding of the amplification optical fiber. The above configuration allows transmitted pumping light, for which the confinement effect by the first cladding of the amplification optical fiber is cancelled, to escape more efficiently out of the fusion splicing portion.

The invention discloses a panoramic imaging method based on a camera array and mainly aims to solve the problems that in the prior art, a splicing scene is small, and a "ghost shadow" exists. According to the scheme, (1) array cameras are used to acquire multiple images, two images are read, SIFT features of the two images are extracted respectively, feature matching search is performed, matching points of the two images are obtained and screened, an optimal transformation matrix is calculated, the images are transformed according to the optimal transformation matrix, and an improved optimal stitching line algorithm and a weighted average fusion algorithm are adopted to perform fusion splicing on the images; and (2) the step (1) is repeated till splicing of the upper image and the lower image is completed, the splicing image is used as a to-be-spliced image, splicing is continued after the to-be-spliced image is rotated counterclockwise by 90 degrees, and the result is rotated clockwise by 90 degrees to obtain a final splicing panoramic image. Through the method, the "ghost shadow" phenomenon is remarkably eliminated, and the obtained panoramic image is large in view field, high in resolution, more approximate to a real panorama and capable of being used for splicing of larger scene images in the horizontal direction and the vertical direction.

An apparatus for fusion splicing optical fibers includes an airtight enclosure, a vacuum pump for evacuating the enclosure, first and second electrodes positioned within the enclosure, and a power source separate from an external to the enclosure for applying a voltage to the first electrode for generating an arc between the electrodes that is used to splice the first and second optical fiber portions together. Also, a method of fusion splicing optical fibers includes receiving first and second fiber portions within an airtight enclosure, evacuating the airtight enclosure, and applying a voltage to a first electrode within the enclosure from a source located separate from and external to the enclosure to cause the generation of an arc between the first electrode and a second electrode within the enclosure that is used to splice the first and second optical fiber portions together.

The present invention is a splicing structure of optical fibers for fusing a double clad fiber and a single clad fiber, the splicing structure is provided with a block covering a fusion splicing point of the double clad fiber and the single clad fiber, and which is made of a highly thermal conductive material.

To provide a fusion-spliced optical connector capable of easily performing a fusion-splicing operation at an actual site in a short time, without need to perform additional special operations. An optical connector component is configured to attach a short-length optical fiber to a ferrule including a capillary and a flange. The capillary comprises a minute through hole and a coated-portion storage hole formed in the capillary, the minute through hole to be stored therein the bare optical fiber portion of the short-length optical fiber and the coated-portion storage hole to be stored therein a part of a coated optical fiber portion of the short-length optical fiber continuous to the bare optical fiber portion. The flange includes a coated-portion penetrating hole formed in the flange to be penetrated therein a very short portion continuous to the part of the coated optical fiber portion stored in the coated-portion storage hole. The short-length optical fiber extends rearward from the coated-portion penetrating hole of the flange by a length of a required extra-length splice portion when the bare optical fiber portion is fixedly stored in the minute through hole of the capillary and the part of the coated optical fiber portion continuous to the bare optical fiber portion is fixedly stored in the coated-portion storage hole of the capillary.

The invention discloses a heat-sealing technique for an airbed hole drawstring, comprising the following steps: (A) a plurality of hole drawstrings are positioned between the upper piece and the lower piece of a bed body in a certain position and in a certain arrangement mode; (B) lower heat transmission moulds are positioned at the bottom surface of the lower piece of the bed body and corresponding to hole drawstrings; upper heat transmission moulds are positioned at the superface of the upper piece of the bed body and corresponding to the hole drawstrings; the upper heat transmission moulds and the lower transmission moulds are clamped so that the upper piece and the lower piece of the bed body are tightly against each other; (C) a power supply is started to heat the upper heat transmission moulds and the lower heat transmission moulds; the upper heat transmission moulds heat-seal the upper piece and the hole drawstrings on the superface and the lower heat transmission moulds heat-seal the lower piece and the hole drawstring from the bottom surface; (D) the upper heat transmission moulds and the lower heat transmission moulds are separated and the bed body is taken out. The invention heat-seals the bed body and the hole drawstrings outside the bed body, thereby having the advantages of clear weld mark decorative patterns on the finished products, steady heat-sealing quality and fixed hole drawstring intervals. Meanwhile, the invention discloses heat-sealing equipment for the airbed hole drawstrings with high production efficiency.

The purpose of the present invention is to provide a method and device which can discriminate all kinds of the optical fibers and carry out the melting-connection using the connection conditions suitable to the various optical fibers. The present invention is the melting-connection device which melt-connects through the discharge by pressing near the end portion of the optical fiber, and it is provided with: the image observation mechanism (1) which observes the end portion of the optical fiber; the image treatment department (2), which measures the parameter data of the illumination distribution waveform of the optical fiber cross section based on the image taken; the fuzzy-calculation-department (4) which identifies the optical fiber categories through the correlations obtained by fuzzy-calculating the fuzzy-calculation data by registering the measured parameter data in the registration department (3) in advance; the cross-reference department (6) which cross-references the identified optical fiber category to the optical fiber category melting-conditions registered in the melting-connection-condition-registration-department (5) prepared in advance; the display device (7) which displays the results of the cross-references; the melting-connection mechanism (9); and the control department (8).

A heat-treatment apparatus according to the present invention comprises a sheet-like heating body, which is bent like a letter “U”, and a heat equalizing plate constituted by a metal plate bonded to a heat generating part of the sheet-like heating body. The heat equalizing plate is bonded to the inner surface of the sheet-like heating body bent like a letter “U”. Alternatively, a fluorocarbon resin is coated on the surface of the heat equalizing plate.

A method and apparatus capable of fusion splicing optical fibers to have a low loss or a prescribed loss. The method includes (a) detecting fiber positions and core positions of optical fibers to be spliced at an abutting position and a fiber offset that is caused when said optical fibers are in core alignment (b) determining the self-alignment ratio corresponding to the preferred melted condition value based on a predetermined expression for a relationship between melted condition value and self-alignment ratio, (c1) determining an intentional offset that achieves a prescribed splicing loss based on the fiber offset and the self-alignment ratio, (d1) aligning the core positions by offsetting the intentional offset value, and (e1) heating and fusing the optical fibers.

A reinforcing member of optical fiber fusion-splicing portion and a reinforcing method thereof are provided, in which plural coated optical fibers can be collectively reinforced in the high density, and a heating mechanism for collective reinforcement can be configured at a low cost.A reinforcing member 12 which reinforces collectively fusion-splicing portions 12a of plural coated optical fibers 11 includes a heat-shrinkable tube 13, a rod-shaped tensile strength member 14 arranged so that a part of its surface comes into contact with an inner surface of the heat-shrinkable tube, and plural tube-shaped heat-fusible adhesive members 15 arranged in the heat-shrinkable tube and into which the fusion-splicing portions of the single-core coated optical fibers are individually inserted. All of the plural tube-shaped heat-fusible adhesive members 15 are arranged in one of space portions formed between the tensile strength body 14 and the heat-shrinkable tube.

Thermally dissimilar glass fibers are fusion spliced by pretreating the cleaved end surface of the high-temperature fiber to provide a smooth surface for making good contact with the low-temperature fiber. The fibers are heated to a temperature that is high enough to soften the low-temperature fiber but not the high-temperature fiber and brought in contact to form the fusion joint.

A splice protector is provided having a trough configuration body form a chamber therein with first and second openings at opposing ends of the body, and first and second end caps coupled to the first and second openings of the body of the splice protector, the first and second separable end caps each including at least one channel for passing through an optical fiber. At least one optical core having been coupled using fusion splicing, passes through the channels of the first and second end caps and the chamber, wherein the splice is located within the chamber, and a flexible filler is filled within the chamber to secure the spliced fibers therein.