子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Constant polarization optical fiber | JP21751883 | 1983-11-17 | JPS60108807A | 1985-06-14 | HOSOYA HIDEYUKI; AKIYAMA MICHIO |
| PURPOSE:To discriminate easily the principal axis of an optical fiber in accordance with its outward appearance by forming the section into a noncircular shape which has a prescribed relation to the dirction of a plane of polarization to be maintained. CONSTITUTION:The optical fiber is provided with a core 2 in the center and is provided with an elliptic clad 3 around the core 2. By forming the clad into an ellipticity, the lateral pressure applied to the core 2 is changed in accordance with direction to give a difference to propagation speed, and the plane of polarization is maintained. The outside shape of the spun optical fiber cannot be circular completely and is elliptic. A thin coat layer 5 is formed around this optical fiber to obtain a constant polarization optical fiber 6 whose outside shape of the section is elliptic. The fact that the outside shape is elliptic is used to wind the optical fiber 6 around a column 7 so that a normal direction D of the curved surface of the column 7 and a principal axis E of the contstant polarization optical fiber 6 coincide with each other throughout the overall length of the optical fiber. Since the optical fiber can be so wound that the normal direction of the curved surface and the principal axis coincide with each other, degradation of an extinction ratio is lessened. | ||||||
| 182 | Melt-bonding method for glass rod and glass pipe | JP17991480 | 1980-12-19 | JPS57106530A | 1982-07-02 | YANAGAWA HISAHARU; TATEGAMI SHIGERU; YOSHIDA YUKIO |
| PURPOSE:To manufacture a base material giving an optical fiber with no core eccentricity by melt-bonding a glass rod put in a glass pipe and the pipe together by heating in consideration of the thickness deviation of the pipe so that the center of the core part of the rod coincides with the center of the external shape of the pipe. CONSTITUTION:An eccentric glass rod 1C is put in a glass pipe 4B with no eccentricity in the internal and external shapes and brought into contact with the pipe 4B as shown by figureI. At this time, the thickest part 3a of the clad part is brought into contact with the pipe 4B so that the maximum gap 7 is formed at the side of the thinnest part 3b. The pipe 4B is then melted by heating from the outside, and a thickness change of the part corresponding to the part 3b is maximized. As a result, the center of the core part 2 of the rod 1C can be made to almost coincide with the center of the external shape of the pipe 4B. When this glass work is worked into an optical fiber as a base material for the fiber, the resulting optical fiber has no core eccentricity. | ||||||
| 183 | Preparation of optical fiber | JP15909780 | 1980-11-12 | JPS5782135A | 1982-05-22 | ISHIDA YUKINORI; SHIBUYA KEIJI; YOSHIDA KAZUAKI; KUROBA TOSHIAKI |
| PURPOSE:To prepare an inexpensive optical fiber of quality according to the purpose of use, by making the area ratio of a synthetic quartz rod in any cross section of a quartz tube containing plural synthetic quartz rods and molten quartz rods a desired value, and spinning the resultant quartz tube. CONSTITUTION:One synethetic or molten quartz rod 3 or 2 is placed in the center of a quartz tube 1, and the molten and synthetic quartz rods 2 and 3 having almost the same diameter as the quartz rod 3 or 2 are plced on the outer periphery thereof to be in contact with one another. On this case, lines connecting the centers of the respective outer molten and synthetic quartz rods 2 and 3 are preferably arranged to form almost a regular hexagon. The quartz tube 1 in this state is then spun, and a silicone resin is applied to the outside thereof to prepare a silicone-clad optical fiber. The ratio between the number of the rods 2 and the rods 3, i.e. the area ratio of the rod 3 in any cross section of the tube 1 is determined according to the purpose of use of the optical fiber, and the optical transmission characteristics can be optionally set. | ||||||
| 184 | Polarization plane preserving optical fiber | JP11274180 | 1980-08-18 | JPS5737305A | 1982-03-01 | KATSUYAMA TOSHIO; MATSUMURA HIROYOSHI; SUGANUMA YASUO |
| PURPOSE:To obtain an optical fiber which preserves polarization plane and causes less transmission losses by constituting the same of a circular core consisting of silicic acid glass contg. germanium oxide and a jacket formed on the outside circumference thereof via an elliptical clad. CONSTITUTION:In the polarization plane preserving fiber consisting of a circular core 1 having the highest refractive index, elliptical clads 2, 4 which are formed successively concentrically and are lower in refractive index than the core, and a jacket 3 formed on the outside circumference of the clads 2, 4, the core 1 is constituted of silicic acid glass contg. germanium oxide. Said polarization plane preserving fibers refers to a fiber of <=10mm. coupling length L=2pi/DELTAbeta. The circular shape of the core is not a strict one, and is relative with respect to the ellipse of the clads. According to the polarization plane preserving optical fiber obtained in this way, the polarization plane preserving optical fiber of about 1mm. degree of coupling and a low loss of 0.3dB/Km for light of 1.5mum wavelength is obtained. | ||||||
| 185 | Optical fiber waveguide having effective refractive index contour | JP13543276 | 1976-11-12 | JPS5262034A | 1977-05-23 | CHIYAARUZU KUEN KAO |
| 186 | JPS5062450A - | JP10893674 | 1974-09-24 | JPS5062450A | 1975-05-28 | |
| 187 | MULTICORE FIBER AND MANUFACTURING METHOD THEREFOR | EP15838410 | 2015-09-04 | EP3196682A4 | 2018-04-18 | IMAMURA KATSUNORI; GONDA TOMOHIRO; SUGIZAKI RYUICHI; SAKAMOTO TAIJI; MORI TAKAYOSHI; WADA MASAKI; YAMAMOTO TAKASHI; YAMAMOTO FUMIHIKO |
| A multicore fiber includes a plurality of unit multicore fibers including a plurality of core portions and a clad portion which is formed in an outer circumference of the core portions and has a refractive index lower than a maximum refractive index of the core portions, the plurality of the core portions having substantially the same refractive index profile and different group delays at the same wavelength in the same propagation mode, wherein the core portions of the multicore fiber are configured so that the core portions of the plurality of the unit multicore fibers are connected in cascade, a maximum value of differential group delays between the core portions of the multicore fiber is smaller than a reduced value of a maximum value of differential group delays between the core portions of each unit multicore fiber as a value in terms of a length of the multicore fiber. | ||||||
| 188 | Spun Optical Fiber for generating optical vortex modes | EP09794827.7 | 2009-07-09 | EP2324381B1 | 2017-11-08 | ALFANO, Robert, R.; CHEN, Xin; KOH, Joohyun; LI, Ming-jun; NOLAN, Daniel, A.; SZTUL, Henry |
| 189 | DOUBLE CLAD OPTICAL FIBER WITH RARE EARTH METAL DOPED GLASS CORE | EP05722408.1 | 2005-01-11 | EP1708971B1 | 2015-06-10 | KOH, Joohyun; TENNENT, Christine L; WALTON, Donnell T; WANG, Ji; ZENTENO, Luis A |
| 190 | +CYLINDRICAL POLARIZATION BEAMS | EP09794827 | 2009-07-09 | EP2324381A4 | 2013-09-18 | ALFANO ROBERT R; CHEN XIN; KOH JOOHYUN; LI MING-JUN; NOLAN DANIEL A; SZTUL HENRY |
| 191 | FABRICATION OF NANOWIRES | EP06790371 | 2006-10-12 | EP1946163A4 | 2012-10-03 | MONRO TANYA; EBENDORFF-HEIDEPRIEM HEIKE |
| 192 | +CYLINDRICAL POLARIZATION BEAMS | EP09794827.7 | 2009-07-09 | EP2324381A1 | 2011-05-25 | ALFANO, Robert, R.; CHEN, Xin; KOH, Joohyun; LI, Ming-jun; NOLAN, Daniel, A.; SZTUL, Henry |
| Generation of a cylindrically polarized light beam, and in particular, a hybrid-azimuthal-radial polarization beams, called HARP modes, generated from an input linearly polarized Gaussian beam using a spun optical waveguide device is taught. The HARP modes are comprised of hybrid-azimuthal polarization (HAP) and hybrid-radial polarization (HRP) superposition modes. These beams possess a non-zero local angular momentum density that is spatially varying and a zero total angular momentum. | ||||||
| 193 | SEITENEMITTIERENDE STUFENINDEXFASER | EP09710583.7 | 2009-02-03 | EP2243048A1 | 2010-10-27 | RITTER, Simone, Monika; HENZE, Inka; WOLFF, Detlef; ALKEMPER, Jochen; HOPPE, Bernd; SCHULTHEIS, Bernd; CURDT, Axel |
| The invention relates to laterally emitting step index fibers, preforms and methods for the production thereof and to fiber bundles and sheet material comprising laterally emitting step index fibers and to the use thereof. The laterally emitting step index fibers comprise scatter centers (3) between the core (1) and jacket (2) that ensure light decoupling from the fiber. The laterally emitting step index fibers are produced from preforms that comprise inlay rods, in which the scatter centers are embedded and which coat the outside region of the fiber core during fiber drawing. Alternatively, at least one inlay tube can be used. | ||||||
| 194 | FABRICATION OF NANOWIRES | EP06790371.6 | 2006-10-12 | EP1946163A1 | 2008-07-23 | MONRO, Tanya; EBENDORFF-HEIDEPRIEM, Heike |
| A method of forming a nanowire is disclosed. In one embodiment, a primary preform is formed comprising at least one central region and a support structure. The primary preform is then drawn to a cane, which is then inserted into an outer portion, to form a secondary preform. The secondary preform is then drawn until the at least one central portion is a nanowire. The method can produce nanowires of far greater length than existing methods, and can reduce the likelihood of damaging the nanowire when handling. | ||||||
| 195 | OPTICAL FIBER WITH BIREFRINGENCE AND LARGE MODE FIELD DIAMETER | EP05792989 | 2005-08-29 | EP1784666A4 | 2007-09-05 | BERKEY GEORGE E; CHEN XIN; LI MING-JUN; NOLAN DANIEL A; ZENTENO LUIS A; WANG JI; WOOD WILLIAM A |
| According to the present invention the optical fiber includes a core with a first refractive index (n<sub | ||||||
| 196 | A microstructured optical fibre | EP02724437.5 | 2002-04-30 | EP1388018B1 | 2007-08-29 | WADSWORTH, William, John; MANGAN, Brian, Joseph; BIRKS, Timothy, A.; KNIGHT, Jonathan, Cave; RUSSELL, Philip, St., John |
| A holey optical fibre for supporting propagation of light of a wavelength μ, comprises a plurality of cylinders (10) each having a longitudinal axis, the cylinders (10) being separated from each other by regions of a matrix material (20) and having their longitudinal axes substantially parallel to each other. Each cylinder (10) has a diameter, in the plane perpendicular to the longitudinal axis, that is small enough for the composite material of the ensemble of cylinders and matrix material to be substantially optically homogenous in respect of light of wavelength μ. | ||||||
| 197 | METHOD OF FABRICATING A CYLINDRICAL OPTICAL FIBER CONTAINING AN OPTICALLY ACTIVE FILM | EP99946580 | 1999-06-01 | EP1110113A4 | 2005-03-09 | KORNREICH PHILIPP G; FLATTERY JAMES; KELLER DOUGLAS V JR |
| A method of forming a preform which has a glass core surrounded by an outer glass cladding with a coating of a light interactive material disposed between the core and cladding. The method includes providing a glass core having a viscosity which lies within a given preselected temperature range, followed by forming a substantially homogeneous coating of a light interactive material over the surface of the core, with the coating material having a viscosity which is equal to or less than the viscosity of the glass core. A glass cladding is formed over the coated layer, with the cladding glass having a viscosity which overlaps the viscosity of the core glass and a thermal coefficient of expansion compatible with that of the core. The light interactive material is an inorganic material which includes a metal, metal alloy, ferrite, magnetic material and a semiconductor. | ||||||
| 198 | FABRICATION OF MICROSTRUCTURED OPTICAL FIBRE | EP03744411.4 | 2003-03-06 | EP1483216A1 | 2004-12-08 | Frampton, Kenneth Edward; Hewak, Daniel William; Kiang, Kai Ming; Monro, Tanya Mary; Moore, Roger Charles; Richardson, David John; Rutt, Harvey; Tucknott, John Antony |
| Microstructured optical fibre is fabricated using extrusion. The main design of optical fibre has a core suspended in an outer wall by a plurality of struts. A specially designed extruder die is used which comprises a central feed channel, flow diversion channels arranged to divert material radially outwards into a welding chamber formed within the die, a core forming conduit arranged to receive material by direct onward passage from the central feed channel, and a nozzle having an outer part in flow communication with the welding chamber and an inner part in flow communication with the core forming conduit, to respectively define an outer wall and core of the preform. With this design a relatively thick outer wall can be combined with thin struts (to ensure extinction of the optical mode field) and a core of any desired diameter or other thickness dimension in the case of non-circular cores. As well as glass, the extrusion process is suitable for use with polymers. The microstructured optical fibre is considered to have many potential device applications, in particular for non-linear devices, lasers and amplifiers. | ||||||
| 199 | Microstructured optical fibres | EP04010536.3 | 1999-05-21 | EP1460460A2 | 2004-09-22 | Broeng, Jes; Barkou, Stig Eigil; Bjarklev, Anders Overgaard |
The present invention relates to a new class of optical waveguides, in which waveguiding along one or more core regions is obtained through the application of the Photonic Bandgap (PBG) effect. The invention further relates to optimised two-dimensional lattice structures capable of providing complete PBGs which reflect light incident from air or vacuum. Such structures may be used as cladding structures in optical fibres where light is confined and thereby guided in a hollow core region. In addition, the present invention relates to designs for ultra low-loss PBG waveguiding structures, which are easy to manufacture. Finally, the present invention relates to a new fabrication technique which allows easy manufacturing of preforms for photonic crystal fibres with large void filling fractions, as well as a high flexibility in the design of the cladding and core structures. |
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| 200 | A PHOTONIC BAND GAP FIBRE | EP99911645.2 | 1999-03-30 | EP1086393B1 | 2004-06-02 | BROENG, Jes; BARKOU, Stig Eigil; BJARKLEV, Anders Overgaard |
| An optical fibre having a periodicidal cladding structure provididing a photonic band gap structure with superior qualities. The periodical structure being one wherein high index areas are defined and wherein these are separated using a number of methods. One such method is the introduction of additional low index elements, another method is providing elongated elements deformed in relation to a circular cross section. Also described is a cladding structure comprising elongated elements of a material having an index of refraction higher than that of the material adjacent thereto. Using this additional material, prior art structures may obtain much better qualities. | ||||||
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