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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7941018 | Block-terminated fiber for laser generation of ultrasonic waves A laser transmission system. ... | 05/10/2011 |
| 7542638 | Optical assemblies for free-space optical propagation between waveguide(s) and/or fiber(s) An optical apparatus comprises segments of a GRIN optical medium mounted on a substrate in at least one groove thereon. The GRIN segments are longitudinally spaced apart from one another on the substrate, and are arranged so that a free-space optical beam received t... | 06/02/2009 |
| 7444047 | Multiplexing optical system A multiplexing optical system includes collimator lenses, a first condensing lens, a second condensing lens and an optical fiber. The collimator lenses collimate divergent laser beams that have been emitted from semiconductor lasers. The first condensing lens conden... | 10/28/2008 |
| 7438480 | Optical module, optical transceiver, and optical joint sleeve An optical module 1 comprises a first optical element F1, a first light receiving subassembly PD1, a second optical element F2, a second light receiving subassembly PD2, a light emitting subassembly LD3 for generating light,... | 10/21/2008 |
| 7440652 | Wavelength division multiplexed coupler A WDM coupler includes a first collimator including a single fiber pigtail, a first GRIN lens and a first glass holding tube; a second collimator including a dual fiber pigtail, a second GRIN lens and a second glass holding tube; an optical filter arranged on an end... | 10/21/2008 |
| 7434946 | Illumination system with integrated heat dissipation device for use in display systems employing spatial light modulators Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the walls of the light integrator of the illumination system. A heat dissipa... | 10/14/2008 |
| 7433558 | Methods for optical isolation in high power fiber-optic systems Methods for optical isolation in high peak power fiber-optic systems prevent damage to a facet within a fiber-optic isolator caused by back-reflected light from, for example, an optical amplifier. Preventing damage to the facet may include expanding a mode area of t... | 10/07/2008 |
| 7421161 | Optical power monitor and its manufacturing method An optical power monitor comprising a pig-tail fiber and a GRIN lens opposed to each other with a spacing and each having an end face (angled face) angled with respect to the axis, being low on reflection loss and able to be easily assembled. The pig-tail fiber and ... | 09/02/2008 |
| 7412132 | Mini fiber optic isolator A fiber optic array is miniaturized in a configuration that includes an input collimator, a first birefringence crystal, a waveplate, a Faraday rotator, a second birefringence crystal and a second collimator. The elements are aligned along a common optical axis. A l... | 08/12/2008 |
| 7409122 | End face structure of optical fiber, optical fiber laser, and laser processing apparatus An end face structure of an optical fiber includes a coreless fiber fused to an emitting end face of the fiber optical fiber and a coating material disposed around at least the coreless fiber, a refractive index of the coating material being higher than a refractive... | 08/05/2008 |
| 7403681 | Wavelength selective optical device and method of tuning wavelength characteristics In a wavelength selective optical device, a lens for transmitting multiplexed optical signals having a plurality of wavelengths is provided to face an end of a first optical fiber such that light output from the end of the first optical fiber is converted into paral... | 07/22/2008 |
| 7403677 | Fiberoptic reconfigurable devices with beam shaping for low-voltage operation An apparatus and method to operate on a light beam by using a lens that collimates the light beam to a collimated beam with at least one cross-sectional dimension less than a critical dimension of 400 μm or less over a working range WR. The apparatus has a bulk ele... | 07/22/2008 |
| 7400799 | Optical device and fabrication method and apparatus for the same An optical device fabrication method capable of fabricating optical devices with high precision and reliability in a simple process and at a low cost. The method of splicing a first optical device and a second optical device to fabricate a third optical device inclu... | 07/15/2008 |
| 7397985 | High-power fused collimator and associated methods A method for making a high-power fused collimator, and a fused collimator made thereby, are provided. A fused collimator is provided that includes an end of a stripped end portion of an optical fiber fused to a proximal face of a silica lens. In an embodiment, a joi... | 07/08/2008 |
| 7394955 | Optical component and method of manufacturing the same The invention relates to an optical component including an optical fiber with a lens constituted by a single-mode optical fiber and a graded index optical fiber and a method of manufacturing the same. The invention provides an optical component in which an optical f... | 07/01/2008 |
| RE40416 | Multilayer optical fiber coupler A multilayer optical fiber coupler for coupling optical radiation between an optical device and an optical fiber, including a first layer that has a fiber socket formed by photolithographic masking and etching to extend through said first layer, and a second layer b... | 07/01/2008 |
| 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 |
| 7387389 | Image display system and method An image display device includes an image processing unit, a light source assembly, an optical modulator assembly, and a projection lens assembly. The image processing unit is configured to receive a video signal and generate image data and control signals. The ligh... | 06/17/2008 |
| 7387448 | Optical component, method for connecting the same, and optical module having the optical component There are provided a substantially cylindrical optical component, a method for connecting the same, and an optical module having the optical component, whereby adequate gripping force can be exerted during positioning or fixing, and the position in the azimuthal ang... | 06/17/2008 |
| 7389009 | Optical fiber sensor and measuring apparatus using same An optical fiber sensor enabling simpler detection of a state of an external environment and a measuring apparatus using the same are provided. At a front end of an optical fiber portion 20a for transmitting the light a hetero core having a different d... | 06/17/2008 |
| 7382541 | Gradient-index rod lens, and rod lens array and image processor using the same A gradient-index rod lens is provided that is excellent in yield. The gradient-index rod lens has a core/clad structure and is obtained by providing a mother glass rod, which includes a core glass mother composition and a clad glass mother composition, with a refrac... | 06/03/2008 |
| 7371017 | Automated laser pressing system Au automated laser pressing system assembles and aligns a laser header subassembly to a lens housing. The automated system generally includes a precise press system and a fast fiber alignment system. The press system precisely presses the housing onto the header, or... | 05/13/2008 |
| 7369721 | Optical imaging system with optical delay lines An electromagnetic signal processing system (10) comprises a plurality of optical fiber arrays (11, 12, 13, 14, 15 and 16) each having a cluster of optical fibers with their one ends (40) oriented to receive electromagnetic radiation from... | 05/06/2008 |
| 7366376 | System and method for optical coherence imaging Apparatus and method are provided for transmitting at least one electro-magnetic radiation is provided. In particular, at least one optical fiber having at least one end extending along a first axis may be provided. Further, a light transmissive optical arrangement ... | 04/29/2008 |
| 7357005 | Fiber optic collimator system, fiber optic collimator array, and manufacturing method of the fiber optic collimator system and fiber optic collimator array system A fiber optic collimator system, a fiber optic collimator array, and a fiber optic collimator array system, which can reduce difficulty in an alignment process, minimize a coupling loss, and prevent the optical characteristics from deteriorating. An optical fiber is... | 04/15/2008 |
| 7356222 | Wavelength selective optical device and method of tuning a wavelength characteristic of the same The invention provides a wavelength selective optical device in which a light emitted from an end surface of a first optical fiber that propagates optical signals with a plurality of multiplexed wavelengths is incident on a first end surface of a first graded index ... | 04/08/2008 |
| 7356223 | Optical filter element and wavelength division multiplexing optical coupler An optical filter element having high isolation and reduction in reflection loss for input light beams. The optical filter element is used with a transparent substrate having a surface that includes a first area and a second area. The optical filter element has a ta... | 04/08/2008 |
| 7347631 | Optical power monitor An optical power monitor having a reduced number of component parts, easy to assemble, capable of facilitating positioning for achieving improved optical coupling, and having a reduced size and a reduced manufacturing cost. A pigtail fiber in which the center axis o... | 03/25/2008 |
| 7346237 | Optical fiber coupling part An optical fiber coupling part capable of reducing coupling loss while maintaining a large operating distance, and having a good module assembling property. AT least one GRIN lens having numerical aperture NA that is larger than numerical aperture NAs of a light-emi... | 03/18/2008 |
| 7346236 | Collimator lens, fiber collimator and optical parts A collimator lens having a low reflectivity and significantly improved durability against high-power light is provided so that optical parts using the collimator lens can be reduced in size and cost lowered. A plurality of optical fibers can be connected to the coll... | 03/18/2008 |
| 7339971 | Optical element and optical module An optical element comprising: a surface-emitting type semiconductor laser having an emission surface; and a photodetector element formed above the emission surface of the surface-emitting type semiconductor laser, wherein the photodetector element includes a semico... | 03/04/2008 |
| 7340138 | Optical fiber devices and methods for interconnecting dissimilar fibers A coupling waveguide is interconnected between a launching fiber and a receiving fiber to reduce coupling loss. The coupling waveguide includes an integrally formed graded index lens having a non-parabolic refractive index profile. The graded index lens receives as ... | 03/04/2008 |
| 7339677 | Microchemical system, and photothermal conversion spectroscopic analysis method A microchemical system according to which measurement can be carried out with high sensitivity. The microchemical system 1 has a two-wavelength multiplexing device in which gradient index rod lenses 501 and 502 are connected together at an end f... | 03/04/2008 |
| 7340130 | Method for assembly of multi-ports optical apparatus The present invention describes a structure and method for a multi-ports WDM device for compensating the filter distortion while reducing insertion loss. The multi-ports WDM device comprises a 4-fiber collimator having a grin lens and a 2-fiber collimator having a l... | 03/04/2008 |
| 7339975 | Apparatus for synthesizing laser beams (Problem to be solved) To provide a laser beam synthesizing apparatus which is small in size and high in output power. (Means for solving the problem) A convergent angle transforming optical system 30 is disposed further upstream of the upstream-most p... | 03/04/2008 |
| 7340131 | Collimator and optical filter device using the same It is a collimator adapted to convert divergent light beams outputted from an optical fiber bundle to parallel light beams through a collimator lens. A large diameter optical fiber is disposed between an optical fiber bundle, which is a bundle of a large number of m... | 03/04/2008 |
| 7336988 | Multi-photon endoscopy An apparatus includes an optical element, a GRIN lens, and a detector. The optical element has a first optical aperture. The GRIN lens has first and second ends. The first end of the GRIN lens is positioned to receive light from the first optical aperture. The detec... | 02/26/2008 |
| 7336868 | Optical component with spectral separation The invention relates to an optical component comprising at least one input monomode fiber (1-4), at least one output monomode fiber (5) and a diffractive element (7) which is disposed between the input fiber or fibers (1-4)... | 02/26/2008 |
| 7336866 | Optical fiber device There is provided an optical fiber device including two optical fibers, rod lenses, and an optical functional element. The two rod lenses have the same refractive index distribution and the front face of each is respectively formed, at the approximate midpoint of a ... | 02/26/2008 |
| 7331682 | Back light module with birefringent crystal assemblies A back light module (100) includes a light guide plate (130), a number of light sources (110) at one side of the light guide plate, and a number of birefringent crystal assemblies (120) respectively located between the light sources and t... | 02/19/2008 |
