Matches 151 - 200 out of 568 < 1 2 3 4 5 6 7 8 9 10 11 12 >
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6788450 Electrophoretic device, driving method of electrophoretic device, and electronic apparatus  
There is provided an electrophoretic device which comprises an electrophoretic layer containing dispersion medium and electrophoretic particles dispersed in the dispersion medium, controls the...
6768856 High germanium content waveguide materials  
Germanium-silicon oxide, germanium-silicon oxynitride and silica-germania-titania materials and oxynitride materials suitable for fabricating optical waveguides for liquid crystal based...
6768849 Systems and methods for fabricating varying waveguide optical fiber device  
Systems and methods are described for fabricating a varying-waveguide optical fiber. In one described method, a preform is fabricated having a core and at least one cladding region. The cladding...
6757474 Emission silicate waveguide compositions for enhanced L-band and S-band emission  
A co-doped silicate optical waveguide having a core including silica, and oxides of aluminum, germanium, erbium and thulium. The composition concentrations are: Er from 15 ppm to 3000 ppm; Al from...
6757469 Temperature insensitive optical waveguide device  
The present invention relates in general to optical waveguide devices, which preferably are planar, e.g., optical arrayed waveguide gratings (AWGs), multiplexers/demultiplexers, optical add/drop...
6757473 Optical fiber and planar waveguide for achieving a substantially uniform optical attenuation  
The present invention relates to an optical fiber and a planar waveguide for achieving a uniform optical attenuation, which comprises a core co-doped with a first metal ions having an optical...
6751387 Microporous glass waveguides doped with selected materials  
The present invention concerns waveguides made from porous glass which have been doped with certain selected materials which exhibit optical properties. In the context of the invention, the...
6744947 High power, low noise, fluorescent device and methods related thereto  
Featured is a high power, broadband superfluorescent source with very low relative intensity noise (RIN) including a seed source, a modulator operably coupled to the seed source and a polarization...
6724972 Silicate waveguide compositions for extended L-band and S-band amplification  
An optical waveguide including a core having silica, Al, a non-fluorescent rare-earth ion, Ge, Er, and Tm. The non-fluorescent rare-earth ion may be La. Exemplary compositions concentrations are Er...
6723435 Optical fiber preforms  
Optical fiber preforms can comprise a glass preform structure with an inner cavity. A powder can be placed within the inner cavity having an average primary particle size of less than about one...
6721485 Echelon diffraction grating and optical waveguide element  
An echelon diffraction grating which has excellent heat resistance and can be produced at a low cost and an optical waveguide which has high heat resistance, small absorption of a communication...
6704468 Optoelectronic device and a method of manufacture thereof  
The present invention provides an optoelectronic device, a method of manufacture therefore, or an optical communications system including the optoelectronic device. The optoelectronic device may...
6697559 Optical fiber and method of making the same  
An optical fiber is composed of silica glass and comprises a center core region doped with F element, a ring core region doped with GeO 2 , and an inner cladding region doped with F element;...
6694080 Apparatus and method for thermally tuning an optical amplifier  
An apparatus and method for thermally tuning an optical amplifier comprises an optical waveguide doped with a fluorescent material, a thermal device for either heating or cooling the optical...
6690869 Multicomponent glass, glass fiber, twister and taper  
Cd-free multicomponent glass to be used in particular as core glass ( 2 ) in glass fibers for optical twisters and tapers, the glass being of the lanthanide flint type and comprising the following...
6674949 Active photonic crystal waveguide device and method  
An active photonic crystal device for controlling an optical signal is disclosed. The device includes a planar photonic crystal with a defect waveguide bounded on the top and bottom by an upper...
6667257 Heavy metal modified silica glass fibers doped with thulium, holmium, and thulium-sensitized-holmium high quantum efficiencies  
A modified silica glass composition for providing a reduction in the multiphonon quenching for a rare-earth dopant comprising: SiO 2 in a host material; a rare-earth dopant; a first SiO 2 ...
6656584 Glass fiber  
A glass fiber comprising core glass and clad glass, wherein the core glass consists essentially of from 25 to 70 mol % of Bi 2 O 3 , from 5 to 74.89 mol % of B 2 O 3 +SiO 2 , from 0.1 to 30 mol %...
6654535 Polyimide optical waveguide  
An optical waveguide is produced by forming on a substrate a waveguide layer and/or a clad layer containing, as their main ingredient, polyimide with a fluorine substitution rate of 30% or higher...
6647192 Optical fiber  
A long period grating ( 8 ) by which an excitation light propagated through the 2nd core ( 4 ) of a double-core type optical fiber composed of the 2nd core ( 4 ) formed on the outer circumference...
6647190 Optical fiber having improved hydrogen resistance  
The present invention relates to an optical fiber having improved hydrogen-resistance properties. The optical fiber includes a high concentration germanium layer and a low concentration germanium...
6643442 Optical waveguides and devices including same  
Optical waveguides having a waveguide channel of photosensitive silica glass with a modified refractive index optically written therein, wherein the photosensitive glass comprises oxides of...
RE38298 Double-core active fiber optical amplifier having a wide-band signal wavelength  
The invention relates to an optical amplifier, in particular for optical fiber telecommunication lines ( 1 ), operating with a transmission signal in a predetermined wavelength range, which...
6636684 Dispersive optical fiber using binary component silica  
A dispersive optical fiber having variable core-cladding refractive index differences depending on wavelength is provided. The dispersive optical fiber includes a core made of silica doped with a...
6628883 Silica glass composition with lasing properties, an optical waveguide and a method of amplifying optical signals  
A thulium doped silica based glass capable of supporting lasing activity including Tm 3+ as a lasing species disposed in a host composition, including oxides of germanium, silicon and tantalum....
6626011 Method of manufacturing a monomode fluoride optical fiber, and an optical amplifier using such a fiber  
The invention provides a monomode optical fiber and a monomode preform ( 2 ) having a mother preform ( 22 ) housed in an outer sleeve tube ( 20 ). It is characterized in that it also includes an...
6621971 Waveguide structure  
A glass planar waveguide structure, typically on a glass wafer or chip, has a core region, a contiguous narrow cladding region encompassing the core region, and an outer region practically...
6618537 Optical waveguide structures and methods of fabrication  
Methods of fabricating solid state optical waveguide structures comprising a doped silicon dioxide core layer sandwiched between lower and upper doped silicon dioxide cladding layers on a silicon...
6611650 Silica optical fiber  
A silica optical fiber is provided, which contains a pure-silica core and a cladding layer formed on the pure-silica core, wherein the pure-silica core contains a C element and has a content of...
6603914 Dispersion compensating fiber with reduced splice loss and methods for making same  
A dispersion compensating fiber is described having a core and cladding as well as methods for making such fiber. The cladding has a first cladding region surrounding the core, a second cladding...
6599957 Photosensitive material suitable for making waveguides and method of making waveguides utilizing this photosensitive optical material  
A UV light-curable composition comprises: (a) a first component, said first component being UV light-polymerizable polymer having a first index of refraction; and (b) a second component, the second...
6597849 Optical fiber and optical component including the same  
The present invention relates to an optical fiber having a sufficient strength, in which not only a core region but also a cladding region contains GeO 2 , and an optical component including the...
6594431 Optical waveguide  
An optical waveguide provided on a substrate, which comprises a core for transmitting light and a clad formed around the core, wherein the clad is made of a fluorinated alicyclic...
6587633 Active optical fibre doped with rare earth elements  
An active optical fiber ( 20 ) having: a silica glass cladding ( 4 ), and a glass core ( 2 ), doped with a rare earth, comprising a quantity of SiO 2 of at least 50% in weight, and a quantity of...
6584266 Chromophores for polymeric thin films and optical waveguides and devices comprising the same  
The present invention is directed to chromophores having novel electron withdrawing groups and novel bivalent cyclic bridges and to optical waveguides and optical devices having polymeric thin...
6584261 Optical gating apparatus and methods  
An apparatus for gating an optical signal comprising: an input stage arranged to receive and combine first and second optical control signals (ON, OFF) of first and second wavelengths, and an...
6580853 Optical high speed communications for a computed tomography x-ray machine  
An optical transmission line is provided that includes optical deflectors disposed within the transmission line. The deflectors are adapted to deflect an optical data signal such that a portion of...
6580864 Birefringence free optical waveguide structures  
An optical waveguide structure comprising an annealed phosphorous doped silicon dioxide core surrounded by silicon dioxide cladding layers on a silicon substrate. The refractive index of the core...
6576163 Durable fiber optic diffuser tip and method of making same  
A method of manufacturing a medical instrument for diffusing light from an optical fiber is provided. The medical instrument includes an optical fiber having a proximal portion including a cladding...
6560392 Optical amplifying glass fiber  
An optical amplifying glass fiber comprising a core glass and a clad glass, wherein a relation of: 0.0005≦( n 1 −n 2 )/n 1 ≦0.1 where n 1 and n 2 are refractive indices of the core glass...
6556757 Optical fiber with absorbing overclad glass layer  
The disclosed invention includes an amplifier fiber and methods of making the amplifier fiber. One embodiment of the inventive fiber includes a glass core and a glass cladding layer surrounding the...
6542682 Active photonic crystal waveguide device  
Active photonic crystal devices for controlling an optical signal is disclosed. The devices include a planar photonic crystal with a defect waveguide. In one embodiment of the invention, the...
6529676 Waveguide incorporating tunable scattering material  
A unique waveguide structure is provided in which the waveguide contains individual scattering elements that are capable of being tuned to provide local refractive index variations, e.g., on a...
6519380 Athermalized integrated optical waveguide devices  
The present invention provides an athermalized organic-containing overclad integrated planar optical waveguide circuit device in which thermal induced shifting of channel wavelengths is minimized....
6512879 Glass composition and optical device made therefrom  
Phosphate free, Er/Yb co-doped borosilicate glass compositions and optical devices made from said compositions are disclosed; said compositions comprising, for 100 parts by weight of: 60 to 70...
6512873 Optical body having modifiable light guiding properties  
In an optical fiber or other light guiding body is utilized that the diffusion properties of fluorine, which reduces the refractive index, are strongly changed, if also a doping with phosphorous is...
6510276 Highly doped fiber lasers and amplifiers  
An improved highly doped waveguide is provided which comprises a waveguide having a dopant disposed therein, the dopant having a concentration of between 100 and 500,000 ppm, and wherein the...
6507688 Light guide with a liquid core  
The invention relates to liquid light guides, consisting of a tubular sheath, an inner coating of the sheath and a light-conducting liquid inside the sheath. Novel perfluorinated homo- or...
6480663 Optical fiber for optical amplifier  
An optical fiber for an optical amplifier, which contains dysprosium ion (Dy 3+ ) with an improved light amplification efficiency at the 1.31 μm band. The optical fiber includes a...
6470130 Waveguide structures  
A waveguide for optical transmission having a mechanically active core material comprised of a silicon-rich silicon nitride in a mechanically active region. In the mechanically active region, the...
Matches 151 - 200 out of 568 < 1 2 3 4 5 6 7 8 9 10 11 12 >