Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8170385 | Light coupler and manufacturing method thereof The present invention provides a light coupler and a manufacturing method thereof. The light coupler of the invention includes a plurality of light input terminals, a plurality of light output terminals, a plurality of half mirrors, and an optical wave guide connect... | 05/01/2012 |
| 7986862 | Optical transmission substrate, method for fabricating the same, and optoelectronic hybrid substrate An optical transmission substrate includes an optical transmission body provided in a through hole which has excellent and uniform propagation characteristics. The optical transmission substrate includes: a substrate 1 formed by laminating a plurality of diel... | 07/26/2011 |
| 7957618 | Integrated photonic circuit An integrated photonic circuit includes waveguides (12-19) and other photonic components. The photonic circuit has a first part (1) and a second part (2), the first part and the second part being connected to a mirror in the form of a hal... | 06/07/2011 |
| 7949217 | Selectively enhancing angular beam deflection According to one embodiment, an apparatus for deflecting light beams comprises an input deflector and one or more Bragg gratings. The input deflector receives light beams from input channels, and deflects each light beam to an initial deflection angle. A Bragg grati... | 05/24/2011 |
| 7945131 | System having optical amplifier incorporated into stacked optical devices An optical system includes optical devices that each has functional sides between lateral sides. The functional sides include a top side and a bottom side. A first one of the devices has an optical amplifier, a first waveguide, and a first port. A second one of the ... | 05/17/2011 |
| 7941019 | Monolithic pump block for optical amplifiers and associated method A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and o... | 05/10/2011 |
| 7916987 | Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device The present invention is to provide a beam homogenizer, a laser irradiation apparatus, and a method for manufacturing a semiconductor device, which can suppress the loss of a laser beam and form a beam spot having homogeneous energy distribution constantly on an irr... | 03/29/2011 |
| 7853104 | Bidirectional optical module and optical time domain reflectometer A bidirectional optical module according to the present invention emits light to an optical fiber and allows returning light from the optical fiber to enter and includes a plurality of light emitting elements that emit light to enter the optical fiber, a light recei... | 12/14/2010 |
| 7796851 | Manufacturing method of optical waveguide, optical waveguide and optical reception/transmission apparatus A manufacturing method of an optical waveguide, the optical waveguide including a first clad layer; a core layer formed on the first clad layer and configured to propagate light; a second clad layer formed on the first clad layer so as to cover the core layer; and a... | 09/14/2010 |
| 7747115 | Optical waveguide device and light outputting module An optical waveguide device includes: a waveguide core that guides light; a mirror surface that deflects light coming from the waveguide core by 90°; a main waveguide core that guides light deflected at the mirror surface; a waveguide core for monitoring that branc... | 06/29/2010 |
| 7672554 | Space expanders in optical devices New designs of optical devices, particularly for multiplexing or demultiplexing as well as adding or dropping are disclosed. According to one aspect of the designs, one or more beam redirecting parts (e.g., prisms or mirrors) are used in an optical device to redirec... | 03/02/2010 |
| 7668422 | Arrangement for multiplexing and/or demultiplexing optical signals having a plurality of wavelengths An arrangement for multiplexing and/or demultiplexing optical signals having a plurality of wavelengths, including a multiplex body having two parallel surfaces between which light is reflected back and forth and in this case is coupled in or out in a wavelength-dep... | 02/23/2010 |
| 7603009 | Double-ended distributed temperature sensing systems The present invention comprises a system for deploying double-ended distributed temperature sensing (DTS) systems which utilizes less space than prior art systems. In one embodiment, the present invention comprises a cable having at least two independent optical fib... | 10/13/2009 |
| 7577328 | Optical reflector, optical system and optical multiplexer/demultiplexer device An optical reflector, an optical multiplexer/demultiplexer device and an optical system which can allow more flexible arrangement of an optical filter thereof, and enhance performance of wavelength division multiplexing communication thereof are provided. An ... | 08/18/2009 |
| 7444048 | Tilted combiners/decombiners and photonic integrated circuit (PIC) employing the same A monolithic optical transmitter photonic integrated circuit (TxPIC) comprises a plurality of integrated modulated sources which, when all operated at constant current, display a power output that varies as a function of array position similar to a quadratic-shaped ... | 10/28/2008 |
| 7444046 | Diode laser array coupling optic and system A single piece optic for coupling the output of a diode laser array into an optical fiber array is provided. The coupling optic has a planar back surface which, during use with a diode laser array, is positioned substantially parallel to the front face of the laser ... | 10/28/2008 |
| 7437037 | Optical module having gain member and partial reflection section waveguides formed on a substrate The present invention is directed to an optical module, which stabilizes an oscillation characteristic of a laser by means of a simple configuration. To this end, a gain member, a partial reflection section connected to the gain member, and an optical device section... | 10/14/2008 |
| 7433557 | Tunable optical add/drop multiplexer The tunable add/drop multiplexer including a tiltable mirror, a fixed thin film filter, and first and second retro-reflector elements for redirecting express channels back out an input/output port and for redirecting drop channels back out an add/drop port, respecti... | 10/07/2008 |
| 7428355 | Wavelength selective and level adjusting optical device An optical device enabling reducing device scale is constituted by M circulators (11a, 11b), (M being a natural number), a waveguide-type diffraction grating (12) including M first input/output waveguides (121a, 12... | 09/23/2008 |
| 7421157 | Optical demultiplexing device An optical device includes an optical fiber mount with an optical fiber disposed thereon, and an optical demultiplexer having a slit defined in the optical fiber across an optical axis thereof, and an optical demultiplexing member inserted in the slit for demultiple... | 09/02/2008 |
| 7418165 | Flexible optical waveguides for backplane optical interconnections A flexible optical connector suitable for use in an optical backplane for interconnecting optical circuit boards, and methods of making the optical connector, are disclosed. The flexible optical connector comprises a plurality of waveguides on two or more levels pro... | 08/26/2008 |
| 7406229 | Optical module Provided is an optical module including a light source for generating an optical signal, a waveguide for waveguiding the optical signal, a photodetector for detecting the optical signal, a first reflecting mirror on the light source for reflecting the optical signal... | 07/29/2008 |
| 7403679 | Thermally tunable optical dispersion compensation devices Thermally tunable optical dispersion compensation (ODC) devices are disclosed. In one aspect, an ODC device may include multiple Gires-Tournois (G-T) etalons. The etalons may be optically coupled together. The etalons may compensate for optical dispersion by collect... | 07/22/2008 |
| 7394986 | Flat top optical filtering component The invention relates to wavelength-selective optical filters for allowing light of a narrow optical spectral band, centered around a wavelength (λc) to pass through them, while reflecting the wavelengths lying outside this band. According to the inventi... | 07/01/2008 |
| 7374346 | Fiber stub with optical element, optical receptacle and optical module In a semiconductor laser module with an optical isolator where the form of a metal holder for holding a fiber stub varies, optical-isolator parts are miniaturized and unified, simplifying product management, reducing delivery time and cost. A fiber stub with an opti... | 05/20/2008 |
| 7376299 | Optical bi-directional rotary hinge The specification and drawings present a new method and apparatus for a rotary hinge for transmitting an optical signal (e.g., comprising data) bi-directionally or uni-directionally from one part to another in an electronic device, wherein these parts can rotate rel... | 05/20/2008 |
| 7376308 | Optical off-chip interconnects in multichannel planar waveguide devices The multichannel waveguide device includes an array of waveguides located in a plane. Each waveguide channel has a redirecting element for redirecting a guided wave out of said plane, or vice versa. The redirecting elements are staggered in the direction of the wave... | 05/20/2008 |
| 7376311 | Method and apparatus for wavelength-selective switches and modulators An apparatus and method are provided for manipulating light beams propagated through an optical apparatus that includes a planar lightwave circuit (PLC) and free-space optics unit. A multi-wave optical signal coupled to the PLC is propagated through a first and seco... | 05/20/2008 |
| 7373050 | Optical communication module and connector A half region of an end face of an optical fiber is cut at an angle of 45° to form a reflecting surface. A light-emitting element is arranged so as to face the end face of the optical fiber. A photoreceptor element is arranged beside the optical fiber with the elem... | 05/13/2008 |
| 7373049 | Optical deflection array An optical deflection matrix including at least two optical deflection modules each for providing, from an incoming beam having a given direction of propagation, an output beam having a direction of propagation taken in a set of potential directions. The modules eac... | 05/13/2008 |
| 7373051 | Optical device A first optical device has an optical fiber mount with an optical fiber disposed thereon, and an optical demultiplexer for demultiplexing a portion of an optical signal beam transmitted through the optical fiber, as a demultiplexed optical signal beam, and guiding t... | 05/13/2008 |
| 7373044 | Optical link module, optical interconnection method, information processor including the optical link module, signal transfer method, prism and method of manufacturing the prism An optical link module of the present invention for connecting light beams by deflection and including light-emitting devices arranged in a planar manner; an optical fiber bundle that is an optical waveguide for receiving the light beams from the light-emitting devi... | 05/13/2008 |
| 7373046 | Optical add/drop multiplexers A spectrally selective optical coupler is disclosed, comprising a first and a second waveguide; an external resonator defined by at least a first and a second mirror; and a respective deflecting portion in each of said waveguides for coupling light between the waveg... | 05/13/2008 |
| 7369328 | Optical path change type optical coupling element A resin molding body has two faces (front face 15 and lower face 19) perpendicular to each other, and also has a total reflecting face 23 approximately having an angle of 45° with respect to these two faces. Plural collimating lenses 16 ... | 05/06/2008 |
| 7366371 | Compact optical multiplexer and demultiplexer Spatially-efficient optical multiplexers and optical demultiplexers include elements interrelating along orthogonal axes. A transmission block of extreme thinness has highly reflective coatings on opposed parallel surfaces. Lasers of multiplexer are on one side of t... | 04/29/2008 |
| 7365925 | Method of aligning optical elements A method of aligning an optomechanical assembly and an optomechanical assembly are described. ... | 04/29/2008 |
| 7366380 | PLC for connecting optical fibers to optical or optoelectronic devices Planar lightwave circuit (PLC) connects optical fibers to the top of an optical or optoelectronic device or optical or optoelectronic integrated circuit. Light propagating through optical fibers is directed to optical waveguides disposed on optical devices. The opti... | 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 |
| 7359599 | Optical near-field generator and near-field optical recording and reproduction apparatus Decrease in optical near-field intensity is prevented when an light propagating medium made of a high refractive index material, such as a waveguide or a lens, is combined with a scatterer for producing optical near-field. Near the optical near-field generating elem... | 04/15/2008 |
| 7352967 | Data transmission system A data transmission system includes subscriber units and a central office unit which are interconnected via optical fibers. The central office unit multiplexes a video signal with signals other than the video signal to deliver them to the multiple subscriber units. ... | 04/01/2008 |
