Matches 301 - 350 out of 568 < 1 2 3 4 5 6 7 8 9 10 11 12 >
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5491708 Integrated optic laser  
A laser waveguide medium is provided comprising: a laser glass substrate wherein the substrate is a glass comprising (on an oxide composition basis): TBL ______________________________________...
5486947 Optical fiber for optical amplifier  
Fluoride glass-based optical fiber for an optical amplifier which contains rare earth metal ions in the core glass has a relative refractive index difference Δn between the core and the cladding...
5485480 Fiber optic lasers and amplifiers  
A fiber optical source of stimulated optical radiation comprises an optical fiber which includes a core doped with laser material having optical gain in two wavelength regions, the fiber...
5483614 Optical waveguide moldings made from silicon nitride and a method of detecting optical wavelengths using same  
A transparent molded article for optical applications made from silicon nitride and a coating thereon of oxidic silicon nitride formed by chemical reaction of the silicon nitride with oxygen. The...
5473713 Optical amplifier having a doped fluoride glass optical fibre and process for producing this amplifier  
An optical amplifier having a doped fluoride glass optical fiber and a process for producing such an amplifier. To produce the doped fluoride glass fiber amplifier which is operable to amplify a...
5459803 Quartz-based optical fiber with a lens and its manufacturing method  
A quartz-based optical fiber with a lens, wherein a lens shaped in a curved surface is directly formed on an end surface, and its manufacturing method are provided, the quartz-based optical fiber...
5438639 Ion-beam deposited, gain enhanced ring resonators  
An optical waveguide is created using the process of ion beam deposition resulting in a waveguide with low propagation loss, mode discrimination, and gain characteristics. The waveguide is made up...
5436992 Lithium niobate optical TE-TM mode splitter  
We disclose a new optical TE-TM mode splitter on lithium niobate. The splitter is fabricated by using an asymmetric Y-junction structure which is composed of a straight waveguide, and two branch...
5432806 Four level multiply doped rare earth laser system  
A system for producing an optical gain, the system including a host having a light conducting path doped with thulium, holmium, and at least one rare earth selected from the group consisting of...
5430824 Optical fibre, waveguide, and optical active device  
An optically active device comprising an optical fiber, a light source and an optical device is disclosed. The optical fiber comprises a core made of an optical functioning glass doped with Pr 3 +...
5422975 Optical filter doped with rare earth elements and used with optical fibers  
An object of this invention is to provide an optical filter which has higher mass-producibility and economy. This feature can be realized by doped a rare earth element into the region made of a...
5418866 Surface acoustic wave devices for controlling high frequency signals using modified crystalline materials  
Devices for controlling high frequency signals such as optic or electric signals are disclosed which utilize guided and/or reflected surface acoustic waves. The devices preferably use crystalline...
5416884 Semiconductor waveguide structure of a II-VI group compound  
A semiconductor waveguide structure of the II-VI group compound semiconductor made of the II group element and the VI group element. The waveguide structure includes a waveguide layer and clad...
5416865 Optical waveguide gain-shaped amplifier including wavelength multiplexing coupler  
A wavelength multiplexing tapered fused fibre coupler is used to splice a second length of optical amplifier fibre between first and third lengths in such a way that pump power bypasses it. The...
5412672 Wave-guiding structure with lasing properties  
Optical wave-guides, e.g. fibres, for use as photonic amplifiers have a path region partly or, preferably, wholly composed as a silica/germania glass with 0.1 to 5000 ppm mole of Er 3 + as a lasing...
RE34901 Optical waveguide with polymer core and polymer cladding  
An optical waveguide having a core/sheath structure whose sheath comprises a terpolymer based on vinylidene fluoride, tetrafluoroethylene and hexafluorpropylene, is suitable for transmission paths...
5394500 Fiber probe device having multiple diameters  
A fiber probe device includes a fiber segment that has at least three sections. An uppermost section has the largest diameter; an intermediate section has an intermediate diameter, and a lowest...
5380386 Molded metallized plastic microwave components and processes for manufacture  
A method of fabricating a microwave waveguide component wherein a plurality of joinable thermoplastic members are first formed. The members, when joined, comprise a microwave waveguide component...
5381503 Mode field diameter conversion fiber  
There is disclosed an optical waveguide comprising a core portion made of a light propagating material and a cladding portion, a first dopant and a second dopant being induced into said core...
5377294 Optical functioning glass and apparatus using the same  
An optical functioning glass for enabling optical amplification at 1.3-μm wavelength band or increasing efficiency of the amplification is disclosed. The optical functioning glass contains Nd 3 +...
5377293 Optical fiber having multi-component core glass or a plastic core, and a coating layer  
An optical fiber includes an optical fiber element having a core layer and a cladding layer formed on the core layer, and a coating layer having a refractive index lower than at least the...
5369722 Optical inorganic waveguide with a substantially planar organic substrate  
An optical waveguide is disclosed with a substantially planar substrate and a waveguide layer applied to the substrate. The invention resides in that the substrate consists of a synthetic resin or...
5366937 Optical fiber composed of glass doped with laser-active ions of an element from the rare earths  
Optical fiber composed of a glass doped with at least laser-active ions of an element from the rare earths. An optical fiber of glass, preferably a HMF glass, doped with Tm 3 + is operated at 1.48...
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...
5353365 Multi-waveguide cylindrical optical conductor for telecommunications cable and method of making same  
A multi-waveguide cylindrical optical conductor for telecommunications cable, the conductor comprising a plurality of optical fibers, each of which is a unit cylindrical fiber constituted by a core...
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...
5337375 Depolarizer using unpumped, doped optical fiber and method using same  
Previous efforts to measure polarization dependent loss of optical components have been limited in uncertainty to more than 0.01 dB. This is because the power meter used in a test set contains...
5337401 Optical functioning glass and method of manufacturing same, optical fiber, waveguide device, and laser device  
An optically active device comprising an optical fiber, a light source and a coupler is disclosed. The optical fiber has a core made of a silicate glass containing Rb and/or Cs oxide. The core is...
5335302 Light waveguide lead having a filling compound and method for manufacture of the lead  
A light waveguide lead has at least one light waveguide accommodated within a protective sheath and this light waveguide is embedded in a pasty filling compound characterized by small balls being...
5335306 Ultraviolet resistant silica glass fiber  
A silica glass optical fiber superior in resistance to ultraviolet rays, which fiber comprises a doped silica glass cladding layer formed on a silica glass core, said silica glass core having an OH...
5321708 Optical fiber amplifier doped with dysprosium ion for the 1.3 μm wavelength band  
A core of a fluorozirconate optical fiber is doped with rare earth ions, namely trivalent Dy ions. The Dy ion makes an absorption transition with excitation light generated by an 800 nm...
5321707 Remote pumping for active optical devices  
Optical amplifiers and other active optical components along a signal distribution path are remotely pumped by a common pump laser. The pump energy can be transmitted over the signal path or over a...
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...
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...
5315685 Component for the transmission of high-energy light, and the application of the component  
A component for the transmission of light of high energy density with a wavelength between 250 nm and 400 nm is made of synthetic, high-purity fused vitreous silica having a hydroxyl ion content in...
5313547 Halide glass medium containing trivalent uranium ions and process for producing said medium  
Said medium is a halide glass (2, 8, 12, 20) containing uranium ions at least partly in the form U 3 + and having, at least at one point of a region of the near infrared between 2.2 and 3.4...
5309452 Praseodymium laser system  
A system for producing an optical gain. The system includes an optical fiber having a core and a cladding, the core being doped with Pr 3 + ; and a source producing light to energize the Pr 3 + to...
5309543 Method of making infrared crystalline fiber and product  
The present invention is directed to silver halide fibers. In one embodiment, the fiber has been doped with AgI or a metal compound of the formula MY wherein M is selected from Li, Na, K, Rb, Cr,...
5305414 Low loss glass and optical fibers therefrom  
Optical fibers and glass composition comprising a mixture of barium oxide, gallium oxide, germanium oxide, and a modifying agent selected from lanthium oxide, indium oxide, and mixtures thereof;...
5301252 Mode field conversion fiber component  
The present invention provides a mode field conversion fiber component formed by fusion-connecting connection end surfaces of two optical components having different mode fields. The mode fields of...
5295218 Frequency conversion in inorganic thin film waveguides by quasi-phase-matching  
A frequency converter/mixer has a crystalline substrate which supports an inorganic, crystalline, nonlinear optical thin film having a higher index of refraction than the substrate, to form an...
5295220 Process for the production of a thin film optical waveguide of TiO.sub.2  
A process is disclosed for the production of an optical thin film waveguide of TiO 2 with an attenuation of <5 dB/cm on a planar inorganic substrate wherein the thin film waveguide is produced...
5291576 Single mode optical waveguide  
A waveguide becomes a single mode waveguide under the condition as described below. If the LiNbO 3 waveguide includes an Na content in a range of 0.1 to 14.3 mol % and an Mg content in a range of...
5291575 Manufacturing method for waveguide-type optical components  
A method for manufacturing waveguide-type optical components featuring a lower propagation loss at low cost in which a lower clad section (2) made of silica glass is formed on a substrate (1), and...
5285517 High energy beam sensitive glasses  
The invention relates to a high energy beam-sensitive glass (HEBS glass) exhibiting insensitivity and/or inertness to actinic radiation. Silver ion exchange in acidic aqueous solution results in a...
5285518 Fluoride glasses and methods for making optical fibers from the glasses  
An optical fiber having a core with a composition consisting essentially of 48 to 60 mole percent ZrF 4 , 15 to 25 mole percent BaF 2 , 1 to 5 mole percent LaF 3 , 1 to 5 mole percent AlF 3 , 15 to...
5274734 Article comprising a rare earth or transition metal doped optical fiber  
We have discovered that silica-based optical fibers that are doped with Ge, Al and a rare earth (e.g., Er) can be very susceptible to hydrogen-induced attenuation change. For instance, such fiber...
5271083 Molded optical waveguide with contacts utilizing leadframes and method of making same  
A molded optical waveguide having electrical conductors molded therein for contacting an optical device mounted at one end of the waveguide and providing external electrical access to the optical...
5271082 Method of fabricating integrated optical guides of glass  
Refractive index change in a glass substrate, necessary to obtain a guiding region, is obtained by bombarding the substrate surface with an electron beam. An electric field induced by negative...
5261022 Optical waveguide of silica glass film on ceramic substrate  
An optical waveguide is disclosed which comprises a substrate of A12O3 and a silica glass film of SiO2 applied thereon. The glass film has between 35-90 mol % SiO2. The device may be used in...
Matches 301 - 350 out of 568 < 1 2 3 4 5 6 7 8 9 10 11 12 >