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| Number | Title | Issue Date |
| 7316513 | Optical-fiber mechanical splicing technique A portable optical-fiber cutter is used to slice a first optical-fiber at an advantageous angle to control reflections and at a suitable length to mate with a similar second optical-fiber that was pre-sliced at a complementary angle in the factory and configured as ... | 01/08/2008 |
| 7255498 | Low profile system for joining optical fiber waveguides A compact, low profile splicing system for joining optical fibers produces durable, low transmission loss fusion splices. The system employs active optical techniques such as profile alignment or local injection and detection to achieve optimized alignment of the fi... | 08/14/2007 |
| 7207726 | Optical connector using an optical fiber having a special fiber portion as a part thereof In an optical connector including an optical connector plug holding a first optical fiber and an optical connector plug holding a second optical fiber, the optical connector plugs cooperates with each other to obtain a connected state in which exposed longitudinal e... | 04/24/2007 |
| 7206065 | Methods and apparatus for automation of the testing and measurement of optical fiber A system and methods for automating the testing of optical fiber are described. According to one aspect of the present invention, an automated conveyor system moves spools of optical fiber contained on pallets from testing station to testing station. According to an... | 04/17/2007 |
| 7153044 | Optical waveguide splicer for linking optical fibers in a material fit The invention concerns an optical fiber splicing device (LWL-SPG) for substance-determined connection of optical fibers (F1, F2) by means of an electric corona discharge (GEG). A corona discharge guide (LBF11/12, LBF2, LBF3) is arr... | 12/26/2006 |
| 7114860 | Method and device for coupling a light emitting source to an optical waveguide In a method for coupling an optical waveguide to a light emitting diode (LED) within a resin case, an input end of the optical waveguide is mounted proximal to a surface formed in the resin case parallel to a light-emitting face of the LED. The optical waveguide and... | 10/03/2006 |
| 7090414 | Automatic apparatus for cleaving optical fiber waveguides An apparatus and method for cleaving an optical fiber waveguide comprises a support base, a fixed fiber support including a fixed fiber base and a self-aligning fiber holder, a fiber pull tension assembly including a tension assembly base and a rotatable pull clamp,... | 08/15/2006 |
| 7070342 | Low profile system for joining optical fiber waveguides A compact, low profile splicing system for joining optical fibers produces durable, low transmission loss fusion splices. The system employs active optical techniques such as profile alignment or local injection and detection to achieve optimized alignment of the fi... | 07/04/2006 |
| 7053995 | Methods and apparatus for automation of the testing and measurement of optical fiber A system and methods for automating the testing of optical fiber are described. According to one aspect of the present invention, an automated conveyor system moves spools of optical fiber contained on pallets from testing station to testing station. According to an... | 05/30/2006 |
| 7004640 | Low profile local injection and detection system for optical fiber waveguides A local injection and detection system assesses the attenuation of light propagating from a first optical fiber to a second optical fiber associated therewith. The system comprises a light injector, a light detector, a driver to energize a light source in the inject... | 02/28/2006 |
| 6993938 | Systems and devices for fusing and fracturing fiber optic cables Systems, devices and methods for compiling and fracturing optical fibers are disclosed. In one aspect, a device is disclosed for coupling and for fracturing optical fibers, comprising a housing for receiving a first end of a first optical fiber and a second end of a... | 02/07/2006 |
| 6963678 | Electro-optical transducer with multi-reflector beam-expanding and collimating input/output device A system of reflectors is used to form beam-expanding and collimating electro-optic transducer devices, including radiation sources and/or detectors. Preferably, the reflector system is of the Cassegrainian or Ritchey-Chretien type. Radiation such as light signals c... | 11/08/2005 |
| 6921216 | Method of fusion splicing thermally dissimilar glass fibers 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 t... | 07/26/2005 |
| 6918269 | Optical fiber aligning method A method and device for aligning and connecting an optical fiber (or device) with another optical device, are disclosed. The method rotates the optical fiber about three axes that intersect at the end surface of the fiber core so that rotation of the fiber does not ... | 07/19/2005 |
| 6866429 | Method of angle fusion splicing silica fiber with low-temperature non-silica fiber A low-cost approach is provided for forming a low splice loss, low back reflection loss and mechanically robust angle-fusion splice between a standard silica fiber and a low-temperature non-silica glass fiber. This is accomplished by angle cleaving the silica fiber,... | 03/15/2005 |
| 6827508 | Optical fiber fusion system An automated fusion system includes a draw assembly for holding optical fibers and for applying a tension to the fibers. The fibers are held substantially parallel to each other in the draw assembly. The system also includes a removal station that etches or strips b... | 12/07/2004 |
| 6814124 | Optical fiber splicing apparatus Apparatus for splicing optical ribbon fibers or ribbonized fibers has a splicing part for splicing the optical fibers to each other and a heating part or oven for heating a protective shrinkable sleeve for applying it around spliced portions of the fibers. A transpo... | 11/09/2004 |
| 6766662 | Method of manufacturing glass parts for connecting optical fibers, and glass parts for connecting optical fibers manufactured using the methods There are provided a method of manufacturing a glass part for connecting optical fibers, which allows insertion of optical fibers into the internal hole of the glass part smoothly, and glass parts for connecting optical fibers manufactured using the method. Predeter... | 07/27/2004 |
| 6735986 | Apparatus for preventing redeposition of silica during flame severing A method for fusing an optical fiber preform comprises fusing the preform while blowing an oxidative gas against the preform to be fused from upper and lower directions of a fusing burner unit. An apparatus for carrying out the method includes a plurality of nozzles... | 05/18/2004 |
| 6729163 | Apparatus for over-cladding large diameter optical fiber pre-form using the same Disclosed is a high efficiency burner and an apparatus for over-cladding an optical fiber pre-form using the same. The high efficiency burner heating an optical fiber pre-form includes burner covers, burner bodies arranged between the burner covers, and fuel dischar... | 05/04/2004 |
| 6705771 | Method of fusion splicing silica fiber with low-temperature multi-component glass fiber A low-cost approach provides a low loss and mechanically robust fusion splice between a standard silica fiber and a low-temperature multi-component glass fiber. An asymmetric heating configuration creates a temperature gradient between the silica and multi-component... | 03/16/2004 |
| 6644870 | Optical fiber transmission line The present invention relates to an optical fiber transmission line having a structure offering superior connection loss characteristics at the fusion-spliced position between optical fibers. This optical fiber transmission line has at least first and sec... | 11/11/2003 |
| 6622376 | Cylindrical fiber holder A cylindrically shaped rotator is provided that can hold either a fiber or a fiber holder along its central axis. A drive roller running parallel to the central axis of the rotator drives the rotator. The diameter of the portion of the drive roller that o... | 09/23/2003 |
| 6612754 | Method and apparatus for splicing optical fibers A fiber splicing apparatus of the present invention includes a support (120a, 120b) for supporting the two optical fibers (112a,112b) such that the ends (114a, 114b) thereof are aligned and in physical contact, and a laser (130) emitting a laser beam (142... | 09/02/2003 |
| 6543256 | Optical fiber coupler making apparatus made from zirconia and method In an optical fiber coupler making apparatus which makes an optical fiber coupler by thermally fusing a plurality of optical fibers together by use of a heater and then elongating thus thermally fused part, the heater comprises a heating element which is ... | 04/08/2003 |
| 6516635 | Apparatus and method for making a joint-free Mach-Zehnder interferometer Method and system for constructing and testing integrity of a combination of first and second spaced apart optical fiber couplers that each receive and hold two fibers. A segment of each fiber in a separation region between the couplers is heated, twisted... | 02/11/2003 |
| 6499319 | Temperature control by means of a CCD-camera in welding fiber ribbon cables In welding optical fiber ribbons by means of an electric arc formed between electrodes the region heated by the electric arc is mapped on CCD-elements in a camera. In the obtained picture the light intensity of those portions of the picture is determined ... | 12/31/2002 |
| 6425270 | Rod in tube method of forming a fiber preform, with maintaining a gas supply until after an end is stretched A method for producing an optical fiber preform comprising inserting a core glass rod for use in the optical fiber preform into the quartz glass tube for the optical fiber preform and then welding them in a heating furnace to melt weld them together into ... | 07/30/2002 |
| 6405566 | Method and device for over-cladding an optical fiber primary preform A method and device for providing an optical fiber secondary preform by collapsing an over-cladding tube on an optical fiber primary preform is disclosed in the present invention. The device for over cladding the optical fiber primary preform includes a h... | 06/18/2002 |
| 6341242 | System for controlling a process for interconnection of optical fibers including fuzzy logic control and optimization architecture Control of an interconnection process for optical fibers involves evaluating the status of all modules used in the process and moving an optical fiber through the process in accordance with the status of the modules. Such control allows more than one fibe... | 01/22/2002 |
| 6279353 | Electric furnace extension method and extension apparatus for optical fiber glass preform An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A ... | 08/28/2001 |
| 6237370 | Apparatus for automated production, and/or packaging and/or testing of fiber optic devices including optical fiber system components and optical fibers A system for automated production of a fiber optic device includes a chamber regulating an environment and/or atmosphere within for the automated production of the fiber optic device. The system also includes a sealable input port, communicating with the ... | 05/29/2001 |
| 6203214 | Alignment system for splicing of polarization-maintaining single mode optical fiber Asymmetric stress in the tip of a polarization-maintaining optical fiber is measured using the photoelastic effect to determine the fiber polarization axes of two fibers appointed to be joined. The fibers are rotated to align their respective polarization... | 03/20/2001 |
| 6151919 | Welding device for optical PM-fibers A compact fiber rotator has a guiding and support device (2) which comprises suction channels (17) formed in the angle of two blocks (3, 5), and a rotation device (32) which is attachable to the guide device (2) and comprises a house (33), a rotating toot... | 11/28/2000 |
| 6122936 | Apparatus for integrating steps of a process for interconnecting optical fibers An apparatus for integrating steps of a process for interconnecting optical fibers. The apparatus contains a planar surface having a plurality of openings. A plurality of optical fiber processing modules are suspended within the plurality of openings, wit... | 09/26/2000 |
| 6092394 | Apparatus for automatically coupling two optical fibers in a tube An automated method and apparatus for making optical fiber couplers is disclosed. The apparatus includes various processing stations under the control of a programmable controller. A fiber feeding system receives a set of optical fibers from a reel and gu... | 07/25/2000 |
| 6003341 | Device for making fiber couplers automatically A system for automated production of a fiber optic device includes a chamber regulating an environment and/or atmosphere within for the automated production of the fiber optic device. The system also includes a sealable input port, communicating with the ... | 12/21/1999 |
| 5970749 | Arrangement for automated fabrication of fiber optic devices Fiber optic devices are manufactured in an automated environment using a combination of clamps to secure the optical fibers and movable gripping devices that transport the optical fiber during the fabrication process while maintaining control of the ends ... | 10/26/1999 |
| 5951735 | Method and apparatus for connecting two optical fibers by arc welding To compensate for disturbing influences during arc welding of at least two optical waveguide fiber ends, an impedance of the discharge path of the arc is measured and at least one of the welding parameters is varied based on the measured impedance.... | 09/14/1999 |
| 5935288 | Method for producing fused fiber bundles A method for making a fused fiber bundle by providing a bundle of optical fibers, heating the fibers by a flame extending axially along the bundle, and translating the flame axially along the fibers. Tension may be applied to the heated bundle to reduce t... | 08/10/1999 |
