序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 비대칭 코어를 구비한 광섬유 및 이의 제조방법 KR1020127009406 2010-10-22 KR1020120054650A 2012-05-30 가폰트시프발렌틴; 미야스니코프댄; 제이체프일리아; 세르기예프블라디미르; 비얏킨미하일
An optical active fiber is configured with an asymmetrically-shaped core having at least one long axis and a shortest axis which extends transversely to the long axis. The outmost cladding of the active fiber is configured with a marking indicating the orientation of the short axis. The marking allows for bending the fiber so that the shortest axis extends along and lies in the plane of the bend thereby minimizing distortion of a mode which is guided by the asymmetrically-shaped core as light propagates along the bend.
22 OPTICAL FIBER WITH BIREFRINGENCE AND LARGE MODE FIELD DIAMETER PCT/US2005030941 2005-08-29 WO2006026653A3 2006-04-20 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
23 PREFORM, METHOD OF ITS PRODUCTION, AND USE THEREOF IN PRODUCTION OF MICROSTRUCTURED OPTICAL FIBRES PCT/DK0300182 2003-03-18 WO03078338A8 2004-03-25 JAKOBSEN CHRISTIAN; VIENNE GUILLAUME; HANSEN THEIS PETER
24 Multicore fiber and method of manufacturing the same US14703003 2015-05-04 US09733424B2 2017-08-15 Itaru Ishida; Shoichiro Matsuo
A multicore fiber according to an embodiment of the present invention includes a plurality of cores and a cladding that encloses the plurality of the cores. The external form of the cladding in a cross section is formed of an arc portion that is formed in an arc shape relative to the center axis of the cladding and a non-arc portion that is pinched between two ends of the arc portion and not formed in an arc shape relative to the center axis of the cladding. The non-arc portion is formed with a pair of projections projecting from two ends of the arc portion on the opposite side of the center axis relative to a straight line connecting the both ends of the arc portion and one or more of recesses pinched between the pair of the projections.
25 METHOD OF THERMALLY DRAWING STRUCTURED SHEETS US15426448 2017-02-07 US20170144915A1 2017-05-25 Esmaeil Banaei
A method of drawing a material into sheet form includes forming a preform comprising at least one material as a large aspect ratio block wherein a first transverse dimension of the preform is much greater than a second transverse dimension substantially perpendicular to the first transverse dimension. A furnace having substantially linearly opposed heating elements one spaced from the other is provided and the heating elements are energized to apply heat to the preform to create a negative thermal gradient from an exterior surface along the first transverse dimension of the preform inward toward a central plane of the preform. The preform is drawn in such a manner that the material substantially maintains its first transverse dimension and deforms across its second transverse dimension.
26 Method of thermally drawing structured sheets US14187969 2014-02-24 US09597829B2 2017-03-21 Esmaeil Banaei
A method of drawing a material into sheet form includes forming a preform comprising at least one material as a large aspect ratio block wherein a first transverse dimension of the preform is much greater than a second transverse dimension substantially perpendicular to the first transverse dimension. A furnace having substantially linearly opposed heating elements one spaced from the other is provided and the heating elements are energized to apply heat to the preform to create a negative thermal gradient from an exterior surface along the first transverse dimension of the preform inward toward a central plane of the preform. The preform is drawn in such a manner that the material substantially maintains its first transverse dimension and deforms across its second transverse dimension.
27 Tapered core fiber manufacturing methods US13494768 2012-06-12 US09484706B1 2016-11-01 Joona Koponen; Laeticia Petit; Petteri Väinänen
Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.
28 A High-Efficiency Parallel-Beam Laser Optical Fibre Drawing Method and Optical Fibre US14909441 2014-08-21 US20160181758A1 2016-06-23 Cheng DU; Wei CHEN; Shiyu LI; Yili KE; Qi MO; Tao ZHANG; Wenyong LUO; Kun DU; Rong DAN
Provided are a high-efficiency parallel-beam laser optical fiber drawing method and optical fiber, the method including the steps of: S1: providing base planes on the side surfaces of both a gain optical fiber preform and a pump optical fiber preform, inwardly processing the base plane of the gain optical fiber preform to make a plurality of ribs protrude, and inwardly providing a plurality of grooves on the base plane of the pump optical fiber preform; S2: embedding the ribs into the grooves, tapering and fixing one end of the combination of the ribs and the grooves to form a parallel-beam laser optical fiber preform; S3: drawing the parallel-beam laser optical fiber preform into parallel-beam laser optical fibers. The process has high repeatability, and the obtained parallel-beam laser achieves peelability of pump optical fibers in a set area, thus facilitating multi-point pump light injection of parallel-beam laser optical fibers.
29 MULTICORE FIBER AND METHOD OF MANUFACTURING THE SAME US14703003 2015-05-04 US20150323736A1 2015-11-12 Itaru Ishida; Shoichiro Matsuo
A multicore fiber according to an embodiment of the present invention includes a plurality of cores and a cladding that encloses the plurality of the cores. The external form of the cladding in a cross section is formed of an arc portion that is formed in an arc shape relative to the center axis of the cladding and a non-arc portion that is pinched between two ends of the arc portion and not formed in an arc shape relative to the center axis of the cladding. The non-arc portion is formed with a pair of projections projecting from two ends of the arc portion on the opposite side of the center axis relative to a straight line connecting the both ends of the arc portion and one or more of recesses pinched between the pair of the projections.
30 Side-emitting step index fiber US12867735 2009-02-03 US08582943B2 2013-11-12 Jochen Alkemper; Bernd Hoppe; Bernd Schultheis; Simone Monika Ritter; Inka Henze; Detlef Wolff; Axel Curdt
Between core and cladding, the side-emitting step index fibers have scattering centers that ensure the coupling out of light from the fiber. The side-emitting step index fibers are produced by preforms that contain inlay rods, in which the scattering centers are embedded and which are applied to the outer region of the fiber core during fiber drawing. Alternatively, at least one inlay tube can be used.
31 ULTRA SMALL CORE FIBER WITH DISPERSION TAILORING US13448003 2012-04-16 US20120314995A1 2012-12-13 Liang Dong; Brian Thomas; Libin Fu
Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially surrounded by a region comprising first features. The USCF further includes a second region at least partially surrounding the first region. The second region includes second features. In an embodiment, the first features are smaller than the second features, and the second features have a filling fraction greater than about 90 percent. The first features and/or the second features may include air holes. Embodiments of the USCF may provide dispersion tailoring. Embodiments of the USCF may be used with nonlinear optical devices configured to provide, for example, a frequency comb or a supercontinuum.
32 METHOD OF MANUFACTURING PHOTONIC BAND GAP FIBER BASE MATERIAL AND METHOD OF MANUFACTURING PHOTONIC BAND GAP FIBER US13338834 2011-12-28 US20120151968A1 2012-06-21 Katsuhiro Takenaga
A method of manufacturing a photonic band gap fiber base material includes: a forming step of continuously forming a columnar core glass body 10 and a clad glass body 20 which coats the core glass body to obtain an intermediate base material 110; a hole making step of making holes 30 in the clad glass body 20; an insertion step of inserting in the holes 30 a plurality of bilayer glass rods 40 in which an outer layer 42 which has the same refractive index as the clad glass body coats high refractive index portions 41 having a higher refractive index than a refractive index of the clad glass body 20; and a heating step of heating the intermediate base material 110 and integrating the intermediate base material 110 and the bilayer glass rods 40.
33 +cylindrical polarization beams US12498591 2009-07-07 US08111957B2 2012-02-07 Robert R Alfano; Xin Chen; Joohyun Koh; Ming-Jun Li; Daniel Aloysius Nolan; Henry Sztul
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.
34 FABRICATION OF NANOWIRES US12914134 2010-10-28 US20110045298A1 2011-02-24 Tanya MONRO; Heike EBENDORFF-HEIDEPRIEM
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.
35 +Cylindrical Polarization Beams US12498591 2009-07-07 US20100142890A1 2010-06-10 Robert R. Alfano; Xin Chen; Joohyun Koh; Ming-Jun Li; Daniel Aloysius Nolan; Henry Sztul
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.
36 FABRICATION OF NANOWIRES US12089986 2006-10-12 US20090028488A1 2009-01-29 Tanya Monro; Heike Ebendorff-Heidepriem
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.
37 Nonlinear optical fibre method of its production and use thereof US10507723 2003-03-14 US07266275B2 2007-09-04 Kim Per Hansen; Jacob Riis Folkenberg
An optical fiber having a longitudinal direction and a cross-section perpendicular thereto, said fiber in a cross-section comprising: (a) a core region (11) having a refractive index profile with a highest refractive index nc, and (b) a cladding region comprising cladding features (10) having a center-to-center spacing, Λ, and a diameter, d, of around 0.4Λ or larger, wherein nc, Λ and d are adapted such that the fiber exhibits zero dispersion wavelength of a fundamental mode in the wavelength range from 1530 nm to 1640 nm; a method of producing such a fiber; and use of such an optical fiber in e.g. an optical communication system, in an optical fiber laser, in an optical fiber amplifier, in an optical fiber Raman amplifier, in a dispersion compensator, in a dispersion and/or dispersion slope compensator.
38 Optical fiber with birefringence and large mode field diameter US10930889 2004-08-30 US07158705B2 2007-01-02 George E Berkey; Xin Chen; Ming-Jun Li; Daniel A Nolan; Ji Wang; William A Wood; Luis A Zenteno
According to the present invention the optical fiber includes a core with a first refractive index (n1) and the innermost core region with the refractive index n0, a cladding surrounding the core, the cladding having a third refractive index (n3), wherein n1>n3 and n0n2. It is preferable that at least one of the core, innermost core region and/or moat has a non-circular shape.
39 Optical fiber with birefringence and large mode field diameter US10930889 2004-08-30 US20060045446A1 2006-03-02 George Berkey; Xin Chen; Ming-Jun Li; Daniel Nolan; Ji Wang; William Wood; Luis Zenteno
According to the present invention the optical fiber includes a core with a first refractive index (n1) and the innermost core region with the refractive index n0, a cladding surrounding the core, the cladding having a third refractive index (n3), wherein n1>n3 and n0n2. It is preferable that at least one of the core, innermost core region and/or moat has a non-circular shape.
40 Method of fabricating a cylindrical optical fiber containing a light interactive film US11034156 2005-01-12 US20060042323A1 2006-03-02 Philipp Kornreich; Douglas Keller; James Flattery
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.
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