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| Number | Title | Issue Date |
| 5361320 | Liquid crystal fiber waveguide This invention provides a fiber waveguide with a liquid crystal core. The liquid crystals are aligned in layers with molecular directors approximately parallel to each other. An electric field can be applied to the liquid crystal core to provide linear an... | 11/01/1994 |
| 5355428 | Optical wavelength conversion module An optical wavelength conversion module having a laser light source, a lens system for managing the laser beam, and a conversion element. The laser light source generates a beam of laser light of a substantially circular cross-section having an aspect rat... | 10/11/1994 |
| 5345545 | Optical fiber device An optical fiber device comprising an optical fiber comprising a core made of an organic crystal and a cladding made of glass, the device generating second harmonics of a laser light that has been launched into the core, the device further comprising a bu... | 09/06/1994 |
| 5340715 | Multiple surface evanescent wave sensor with a reference An evanescent wave sensor and method for use in analyzing one or more media, the sensor including a waveguide having first and second wave propagating surfaces. The waveguide propagates an input signal along the waveguide between the first and second surf... | 08/23/1994 |
| 5335303 | Quasi-phased matched optical waveguide frequency conversion element having a ferroelectric liquid crystalline material exhibiting a periodic structure An optical frequency conversion element has a wave-guiding layer which consists of a .chi..sup.(2) -active ferroelectric liquid crystal. The monomeric or polymeric liquid crystal material has a periodic structure which permits the so-called quasi phase ma... | 08/02/1994 |
| 5321791 | Organic material for non-linear optics An organic material for non-linear optics, in which the structure of the molecule includes an electron donor group and an electron attractor group connected by means of an electron-transmitting group, the material being characterized by the fact that it s... | 06/14/1994 |
| 5317657 | Extrusion of polymer waveguides onto surfaces A waveguide structure is directly extruded onto a surface from a nozzle placed a predetermined distance above the surface and which is moved relative to the surface, preferably by means of a translation table. The predetermined distance is preferably main... | 05/31/1994 |
| 5317082 | Photodefinable optical waveguides Polyimide optical waveguide structures comprising a core within a cladding wherein at least one of the core and the cladding is a polyimide containing 6FDA, BTDA, an aromatic diamine having bulky methyl groups ortho to the amine, and a co-diamine wherein ... | 05/31/1994 |
| 5308986 | High efficiency, high resolution, real-time radiographic imaging system A new scintillating optical fiber is used in an array as a scintillator plate for imaging with high energy radiation, particles and the like. The scintillating optical fiber has an inner plastic core fiber which is transparent to visible radiation and has... | 05/03/1994 |
| 5301254 | Transparent thermoplastic molding compound and use thereof A transparent thermoplastic molding compound consisting of 40 to 90% by weight of units derived from tetrafluoroethylene, and 60 to 10% by weight of units derived from compounds of formula I or II: CF2 .dbd.CF--O--(CF2 --CF(CF3... | 04/05/1994 |
| 5292620 | Optical waveguide devices, elements for making the devices and methods of making the devices and elements A substantially dry method for making an optical waveguide device with at least one buried channel waveguide in a laminated and hardened matrix. The method begins with exposing to light a region of a substantially dry photohardenable film adhered to a sup... | 03/08/1994 |
| 5291567 | Electro-optic waveguide deflector using a nonlinear optic film or liquid-crystal overlay cell for use in an optical pickup head An electro-optic waveguide deflector appropriate for use in an optical pickup head uses any film exhibiting high second order susceptibility such as nonlinear optic organic Langmuir-Blodgett films or nonlinear optic organic poled polymer films, or a liqui... | 03/01/1994 |
| 5291574 | Method for manufacturing strip optical waveguides In a method of manufacturing a planar optical waveguide based entirely on polymer materials an active polymer is deposited onto a semiconductor substrate between two layers of buffer polymers chosen so that the difference in refractive index on each side ... | 03/01/1994 |
| 5280548 | Emission based fiber optic sensors for pH and carbon dioxide analysis The present invention is directed to a fiber optic sensor for analyzing pH which comprises (a) a fluorescence-based fiber optic sensor; and (b) a fluorescent dye-polymeric matrix in contact with the sensor, wherein the fluorescent dye is seminaphthorhodaf... | 01/18/1994 |
| 5265184 | Molded waveguide and method for making same A method for manufacturing a molded waveguide (50) is provided. A first cladding layer (20) is provided. Channels (21) are formed in the first cladding layer (20). A second cladding layer (40) is subsequently provided. The channels (21) in the first cladd... | 11/23/1993 |
| 5253323 | Method of manufacturing a graded optical transmission medium made of synthetic resin A method of manufacturing a multimode optical transmission medium from a synthetic resin having the distribution of refractive index varying continuously in a fixed direction. In the method, the polymerization is caused to proceed utilizing the effect of ... | 10/12/1993 |
| 5247602 | Blue transparent second harmonic generator An optical article is disclosed comprised of a support including a portion adjacent one major surface which is transparent to the electromagnetic radiation sought to be propagated, an organic layer unit capable of converting a portion of polarized electro... | 09/21/1993 |
| 5235660 | Graded polymer optical fibers and process for the manufacture thereof A process for the manufacture of a multi-layer polymer optical fiber having a graded optical refractive index profile. This fiber is comprised of an inner core layer, one or more intermediate layers and an outer clad layer, each layer being extruded from ... | 08/10/1993 |
| 5229208 | Resin molded body for optical parts The present invention provides a resin molded body for optical parts, and comprises a solid solution of a polycarbonate and a polyester carbonate. In the resin molded body of the present invention, when the amount incorporated of the polyester carbonate is inc... | 07/20/1993 |
| 5224185 | Optical switch An optical switch with improved stability which has a flat waveguide including at least two optical waveguides which are made of a glass containing silica and arranged closely each other, at least a core part of each of the optical waveguides consisting o... | 06/29/1993 |
| 5208892 | Triazine optical waveguides An optical waveguide (11) is composed substantially entirely of triazine.... | 05/04/1993 |
| 5206926 | Plastic optical fiber cords A flame retardant plastic optical fiber cord comprising a plastic optical fiber comprising a core and a cladding, and a jacket layer provided on the optical fiber, wherein the jacket layer has an oxygen index of not less than 25 as measured by the method ... | 04/27/1993 |
| 5206922 | Nonlinear optical switch utilising organic conjugated material and four wave mixing techniques A nonlinear all-optical switching device including a waveguide of an organic conjugated material which forms a nonlinear optical medium. The nonlinear material has an index of refraction which is a function of the local intensity of light. Light beams pas... | 04/27/1993 |
| 5204930 | Optical fibers, and a process for their production Optical fibres, and a process for their production, are described which comprise tubular plastic cladding and a core of a polymer whose refractive index is at least 1% greater than that of the cladding material. The core is obtained from a polymerisable m... | 04/20/1993 |
| 5198925 | -fluoroacrylic acid esters and polymers thereof Esters of -fluoroacrylic acid are accessible by hydrolysis of an -hydroxymethyl--fluoromalonic acid ester, decarboxylation and dehydration of the hydrolysis product and subsequent esterification of the resulting -fluoroacrylic ... | 03/30/1993 |
| 5194984 | Stilbazolium salt and optically non-linear devices incorporating same 4'-Dimethylamino-4-methylstilbazolium methanesulfonate is prepared by the reaction of methyl methanesulfonate with 4-picoline followed by condensation with p-dimethylaminobenzaldehyde. Its hydrated form has second harmonic generation optical properties, b... | 03/16/1993 |
| 5187769 | Transparent thermoplastic molding composition, process for its preparation and its use Transparent thermoplastic molding composition of a polymer containing a) 10 to 95% by weight of units which are derived from a compound of the formula (I) R21 C.dbd.CF--COO--C(CF3)2 R2 (I) b) 90 to 5% by we... | 02/16/1993 |
| 5182783 | Process for manufacturing a monomode optical waveguide made of a polymer and endowed with electrooptic properties, and such an optical waveguide The invention relates to a process for manufacturing a monomode cylindrical optical waveguide made of a polymer and endowed with electrooptic properties. According to the invention, the manufacturing process comprises the following steps: producing a cyli... | 01/26/1993 |
| 5175790 | Transparent thermoplastic molding compound made of 2,3-difluoroacrylic acid esters Transparent thermoplastic molding compound made of 2,3-difluoroacrylic acid esters. A thermoplastic molding compound consisting of units of 2,3-difluoroacrylic acid esters or their deuterated derivatives, or containing units of these esters, is distinguis... | 12/29/1992 |
| 5170461 | Polymeric electrooptic waveguide devices using a polymeric substrate This invention provides superior electrooptic devices containing an organic polymeric waveguiding medium, and a process of fabricating such devices. The fabrication process utilizes a substantially stress-free organic polymeric substrate on top of which t... | 12/08/1992 |
| 5167000 | Optical wavelength converter A nonlinear optical device is provided which uses nonlinear optical materials that transmit a fundamental wave and generated higher harmonics, and have optical absorption maximums based on an electronic transition between wavelengths of the fundamental wa... | 11/24/1992 |
| 5157746 | Optical waveguide array including two-dimensional lens and its manufacturing method An optical waveguide array includes a two-dimensionally refractive index profile lens for focusing light beams in a scanning direction. The two-dimensionally refractive index profile lens is bonded to or integrally formed with the optical waveguide array.... | 10/20/1992 |
| 5155793 | Optical component for applications in integrated optics Disclosed is an optical component for applications in integrated optics, including a substrate that supports a stack of three polymer layers: a lower layer deposited on the substrate, a central layer and an upper layer, the lower and upper layers having o... | 10/13/1992 |
| 5155796 | Plastic optical fibers A novel all-plastic optical fiber comprising core and clad components which is tough, flexible, and which has a low transmission loss, wherein the core component is composed of a homopolymer or copolymer of a monomer selected from one or more monomers rep... | 10/13/1992 |
| 5151965 | Device for doubling the frequency of a light wave Device for doubling the frequency of a light wave, comprising a non-linear optical medium of an oriented synthetic resin composition for guiding a fundamental light wave, while forming a second harmonic wave, which medium is composed of a waveguide having... | 09/29/1992 |
| 5150446 | Conversion efficiency second harmonic generator An optical article is disclosed comprised of a support including a portion adjacent one major surface which is transparent to the electromagnetic radiation sought to be propagated, an organic layer unit capable of converting a portion of polarized electro... | 09/22/1992 |
| 5146535 | Light-transmitting fiber A light-transmitting plastic fiber comprising, as a core component, a methacrylimide group-containing polymer prepared by polymerizing methyl methacrylate in the absence of a chain transfer agent and then imidizing the methyl methacrylate polymer thus pre... | 09/08/1992 |
| 5143577 | Smooth-wall polymeric channel and rib waveguides exhibiting low optical loss This invention provides process embodiments for fabricating polymeric channel or rib optical waveguides. An invention optical waveguide has a channel or rib structure which has a polymer thin film smooth-wall lining on its surfaces to minimize optical los... | 09/01/1992 |
| 5133037 | Polymeric optical modulator and waveguiding media A waveguiding media of polymeric materials is disclosed and claimed. In a preferred embodiment both core and cladding include X.sup.(2) materials poled to a non-centrosymmetric structure. Materials are selected so that the index difference between core an... | 07/21/1992 |
| 5129029 | Apparatus and method of producing fiber wavelength-conversion element A method of coating the ends of a fiber wavelength-conversion element with a macromolecular film. This serves to protect the crystal core and change in quality without changing the state of the core end surface.... | 07/07/1992 |
