Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7865054 | Apparatus and method for handling an optical signal An apparatus for handling an optical signal includes: an optical transmitting unit transmitting the optical signal from an input locus to an output locus. The optical transmitting unit includes a plurality of optical transmitting sections. Each respective optical tr... | 01/04/2011 |
| 7813613 | Optical connections and methods of forming optical connections In one embodiment, method of forming fibers is provided. The method includes modifying a first exposed edge of at least one core of a first fiber. The first fiber has a first end, a second end, and a length between the first end and the second end. The second end ha... | 10/12/2010 |
| 7805047 | Optical transmission system An optical transmission system (1) alters quantity of incident light by reflecting an optical signal by a micro mirror (11) to enter an optical fiber (13) and by controlling an angle of the micro mirror (11), so that attenuation of the op... | 09/28/2010 |
| 7773851 | Attenuated optical splitter module A compact optical splitter module is disclosed. One type of compact optical splitter module is a planar attenuated splitter module that includes a branching waveguide network having j≧1 50:50 splitters that form up to n≦2j output waveguides having ass... | 08/10/2010 |
| 7689092 | Integrated tunable optical equalizer Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes first and second 1×N couplers integrated on a substrate and configured to receive an optical symbol having an intended time slot, N being at least three. The apparatus, ... | 03/30/2010 |
| 7609934 | Integrated tunable optical equalizer Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes first and second 1×N couplers integrated on a substrate and configured to receive an optical symbol having an intended time slot, N being at least three. The appa... | 10/27/2009 |
| 7580609 | Fiber intensity reducing devices and related systems A fiber intensity reducer comprises a guided system fiber including a core and an outer cladding layer, an unguided fiber intensity reducing (FIR) section including a first fiber “end cap fiber” having a first end and a second end attached at its first end to th... | 08/25/2009 |
| 7574096 | Optical attenuator A tilting mirror MEMS variable optical attenuator attenuates light over a band of wavelengths with minimum wavelength dependent loss. The attenuator includes a lens that has a wedged input face and is made from a material that has high dispersion. The lens design ca... | 08/11/2009 |
| 7567745 | Optical attenuator and method of manufacture In the manufacture of an optical attenuator having a desired value of the optical loss end regions of two optical fibers are placed with an offset in the traverse direction in relation to each other and having their end surface at each other. Thereafter the region a... | 07/28/2009 |
| 7551828 | Optical transmission device for controlling optical level of transmission signal in optical transmission system An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls ... | 06/23/2009 |
| 7529459 | Electrical reset of optical functions for tunable fiber optical devices Control of attenuators used to regulate optical signals is disclosed. An assembly including an IR source and an IR sensor is provided to sense blockage of optical signals transmitted between two collimators via a fixed common light blocker that is driven by a motor.... | 05/05/2009 |
| 7522808 | Variable optical attenuator A variable optical attenuator with photoelectric detector, comprising a collimator, a variable optical attenuator chip, wherein the variable optical attenuator further comprises a photoelectric detector; and the photoelectric detector receives and detects partial li... | 04/21/2009 |
| 7499624 | Ophthalmic Endoilluminator with Variable-Wedge Rotating-Disk Beam Attenuator An ophthalmic endoilluminator includes a light source, a variable-wedge rotating-disk attenuator, a condensing lens, and an optical fiber. The variable-wedge rotating-disk attenuator attenuates the light produced by the light source. The variable-wedge rotating-disk... | 03/03/2009 |
| 7477827 | Variable Optical Attenuator A variable optical attenuator is disclosed, which attenuates a beam of light while preserving its polarization substantially independent of wavelength. The beam of light is attenuated by a filter patterned with a grating of blocking stripes with serrated edges, whic... | 01/13/2009 |
| 7474830 | System and method for determining fiber characteristics A system is provided for characterizing optical fibers carrying signal traffic. The system includes a transmitter, a variable optical attenuator (VOA), a receiver, and a computing device. The transmitter propagates an optical test signal along a channel of a fiber p... | 01/06/2009 |
| 7454118 | Expanded beam optical attenuator An attenuator for optical signals includes a base. A first ferrule has a first optic fiber passing through a central bore therein and attached to a first lens at an end of the first ferrule. The first ferrule is fixed in position relative to the base. A second ferru... | 11/18/2008 |
| 7450812 | Compensated variable optical attenuator An electrically variable optical attenuator and associated methods are disclosed. In one aspect, the attenuator includes at least one sensor that provides a sensor output with respect to a variable that affects attenuation. Methods of characterizing the attenuator i... | 11/11/2008 |
| 7444060 | Liquid ejecting apparatus A liquid ejecting apparatus which includes a plurality of transport belts, upstream and downstream liquid ejecting units that include a plurality of liquid ejecting heads which are arranged at predetermined intervals in a direction orthogonal to the direction that t... | 10/28/2008 |
| 7444057 | Variable-wedge rotating-disk beam attenuator for ophthalmic endoilluminator A variable-wedge rotating-disk attenuator for use in an ophthalmic endoilluminator is disclosed. The attenuator includes a wedge attached to an axle. The size of the wedge can be adjusted over a variable angle as measured through an arc of the wedge. The axle to whi... | 10/28/2008 |
| 7440643 | Variable light controlling device and variable light controlling method A variable light controlling device comprising a substrate, an optical waveguide disposed on the substrate, a first heater and a second heater to change the optical waveguide's temperature is fabricated. And a total amount of the power supplied to the first and the ... | 10/21/2008 |
| 7433556 | Optical rotary joint A device for transmitting optical signals comprises two collimator units, supported to be rotatable relative to each other about a rotation axis and one derotating optical element. A first beam splitter receives input signals and splits them into at least two signal... | 10/07/2008 |
| 7406244 | Method of using an ultrathin optical element The present invention provides an ultra-thin high-precision glass optic and method of manufacturing the same. The optic has an axial thickness that is less than 1,000 microns. A pattern and/or coating is disposed on a surface of the optic to provide attenuation of l... | 07/29/2008 |
| 7403684 | Optical fuse and component for fabricating optical fuse Disclosed are an optical fuse and a device for fabricating such an optical fuse. The optical fuse comprises a medium constituting a structure in which a light-emitting end of a first optical waveguide is coupled to a light-incident end of a second optical waveguide ... | 07/22/2008 |
| 7403672 | Integrated linear polarizer A method for creating an integrated linear polarizer is provided. An electro-optical component is fabricated and may include a bottom electrode, a bottom cladding layer, side cladding features, an electro-optic polymer layer, a top cladding layer, and a top electrod... | 07/22/2008 |
| 7397983 | Light applicator and method for producing a diffuser A light applicator (27) for medical applications is proposed whose diffusor (1) comprises diffusion regions (7, 8, 9) with paraboloidal boundary surfaces (11, 12) This configuration of the diffusor (1) permits a particularly good h... | 07/08/2008 |
| 7394994 | Optical receiver circuit An optical receiver circuit comprising an optical converter circuit (38), comprising a photodiode and converting optical power into electrical power, a sensor circuit for deriving a control voltage VCONTR as a characteristic value of the electrical power outp... | 07/01/2008 |
| 7391954 | Attenuated optical splitter module A compact optical splitter module is disclosed. One type of compact optical splitter module is a planar attenuated splitter module that includes a branching waveguide network having j≧1 50:50 splitters that form up to n≦2j output waveguides having ass... | 06/24/2008 |
| 7389032 | Method and apparatus for adjusting loss caused by optical fiber curvature, and optical transmission system using the same The present invention achieves highly reliable optical-fiber loss adjustment at low cost, with easy work. An optical fiber is inserted from an optical fiber insertion opening into a space between an internal wall and a plurality of optical-fiber support members and,... | 06/17/2008 |
| 7389033 | Planar lightwave circuit type variable optical attenuator A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical coupler sections equal to or greater than 3.5×10−4, th... | 06/17/2008 |
| 7382946 | Electro-optical module comprising flexible connection cable and method of making the same An electro-optical module comprising flexible connection cable and aligning capabilities is disclosed. Electro-optical devices may be soldered on a transparent substrate such as glass or a substrate comprising an optical waveguide wherein electrically conductive tra... | 06/03/2008 |
| 7376327 | Optical device and method for the spectrally-designed attenuation of a multi-wavelength light signal A device and method for the spectrally-designed and controlled attenuation of a light signal, including an attenuation structure which may be placed in the proximity of a waveguide's core and which comprises a base material system containing non-uniformities having ... | 05/20/2008 |
| 7373073 | Photonic colloidal crystal columns and their inverse structures for chromatography The present invention provides a straightforward and robust synthetic process for producing a chromatographic column with eluent-sensitive light diffracting properties based on an inherent photonic band structure and a chromatographic device using the chromatographi... | 05/13/2008 |
| 7373030 | Planar optical circuit The invention relates to a planar optical circuit having a waveguide structure and at least one monolithic or hybrid integrated optical component. A mechanism for influencing the propagation of scattered light in the planar optical circuit in a targeted manner is em... | 05/13/2008 |
| 7368700 | Optical switch apparatus and optical switching system In an optical switch apparatus which continuously carries out the route switching on frame signal light inputted from various routes while eliminating differences in output power value, a first delaying unit, which is interposed between a first branching unit and an... | 05/06/2008 |
| 7366385 | Tunable fiber amplifier and laser The present invention has a core and at least one cladding, where, by changing the temperature of the cladding, the material dispersion characteristic of the cladding is changed and a refractive index is varied to make fundamental-mode cutoff tunable as well; and th... | 04/29/2008 |
| 7362930 | Reduction of MEMS mirror edge diffraction in a wavelength selective switch using servo-based rotation about multiple non-orthogonal axes Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by using rotation of the micromirror about both the ... | 04/22/2008 |
| 7362932 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides An optical device comprises a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical waveguide. The waveguides so formed may be stra... | 04/22/2008 |
| 7359608 | Constructing well structures for hybrid optical waveguides A well may be formed for access to an optical waveguide core by a process that results in an L-shaped well. The L-shaped well may then be filled with a polymer. By controlling the size of each portion of well, the occurrence of bubbles within the well and cuts to th... | 04/15/2008 |
| 7359607 | Waveguide for thermo optic device A waveguide and resonator are formed on a lower cladding of a thermo optic device, each having a formation height that is substantially equal. Thereafter, the formation height of the waveguide is attenuated. In this manner, the aspect ratio as between the waveguide ... | 04/15/2008 |
| 7359602 | Optical transmission line constituting method, optical transmission line and optical fiber The present invention relates to a method of forming a transmission line capable of measuring more precise connection losses at low cost, and so on. At least of first and second optical fibers to be connected as components of the optical transmission line is selecte... | 04/15/2008 |
