Patent application number | Description | Published |
20080279516 | Low bend loss coated optical fiber - An optical fiber includes a core and a cladding, said cladding having a refractive index n | 11-13-2008 |
20090086325 | Method and apparatus for frit sealing with a variable laser beam - A beam shaper is implemented to seal an OLED. The beam shaper comprises a first and second lens and a beam shaper. Changing the relative position of the first, second lens and beam shaper relative to each other enables the beam shaper to generate laser beams with different shapes and intensity profiles. | 04-02-2009 |
20090120134 | Method and apparatus for measuring surface shape profile - An apparatus for measuring a shape profile of a surface of a sheet of material includes a light source for providing a light beam to be directed at the surface of the sheet of material, a linear translation stage coupled to the light source for translating the light source over the surface of the sheet of material such that the light beam, when directed at the surface, is incident on the surface at multiple positions and produces a reflected light beam at each of the multiple positions, a plurality of light receivers located at predetermined positions for selectively intercepting the reflected light beam produced at each of the multiple positions, a data acquisition device configured to receive information related to position difference between the light source and a selected one of the plurality of light receivers intercepting the reflected light beam produced at each of the multiple positions, and a data analysis device configured to correlate the position difference information to a shape profile of the surface of the sheet of material. | 05-14-2009 |
20090274428 | Optical Fiber and a Method of Making - According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n | 11-05-2009 |
20100149553 | Method and Apparatus for Determining Sheet Position During Production and Handling - A method for determining a position of a selected area of a sheet of material relative to a reference plane includes launching a first incident light beam at the selected area of the sheet of material such that the first incident light beam strikes the selected area at a first position and a first angle, thereby producing a first reflected light beam. A second incident light beam is launched at the selected area of the sheet of material such that the second incident light beam strikes the selected area at a second position and a second angle, thereby producing a second reflected light beam. The second position and second angle are different from the first position and first angle, respectively. The first reflected light beam and the second reflected light beam are intercepted at the reference plane. Information related to positions at which the reflected light beams were intercepted and angles at which the incident light beams were launched were received and correlated to the position of the selected area relative to the reference plane. | 06-17-2010 |
20100178504 | Bend Insensitive Optical Fibers with Low Refractive Index Glass Rings - An optical fiber includes a silica-based glass portion having an outer diameter of less than about 120 μm. The glass portion comprises a core, an inner cladding and a low index ring. The core comprises an index of refraction n | 07-15-2010 |
20100195194 | Large Mode Area Optical Fiber - A large-mode-area (LMA) optical fiber ( | 08-05-2010 |
20100221501 | GLASS SHEET WITH PROTECTED EDGE, EDGE PROTECTOR AND METHOD FOR MAKING GLASS SHEET USING SAME - A glass sheet assembly includes a glass sheet having an edge surface and a shaped fiber. The shaped fiber has a first surface bonded to the edge surface of the glass sheet and a convex second surface not bonded to the edge surface for receiving a load. | 09-02-2010 |
20110044359 | Intracavity Conversion Utilizing Narrow Band Reflective SOA - An external cavity laser source is provided comprising an external laser cavity, a tunable distributed Bragg reflector (DBR), a DBR tuning element, an output reflector, a semiconductor optical amplifier (SOA), a frequency-selective optical coupler/reflector, and a wavelength conversion device. The tunable DBR, the DBR tuning element, the SOA, and the output reflector are configured to generate a fundamental laser signal characterized by a fundamental bandwidth that is narrower than the QPM bandwidth of the wavelength conversion device and can be tuned to a fundamental center wavelength within the QPM bandwidth. The frequency-selective optical coupler/reflector is configured for substantially non-reflective two-way transmission of optical signals at the fundamental center wavelength and is further configured for substantially complete reflection of wavelength-converted optical signals generated by the wavelength conversion device. The output reflector is configured for substantially non-reflective transmission of wavelength-converted optical signals generated by the wavelength conversion device and for substantially complete reflection of optical signals at the fundamental center wavelength. Additional embodiments are disclosed and claimed. | 02-24-2011 |
20110072886 | Gas Sensor Based On Photoacoustic Detection - A photoacoustic gas detector and photoacoustic gas detection method are disclosed. The detector includes a laser source, an acoustic resonator, and at least one tuning fork positioned along a longitudinal length of the resonator. The detector is capable of performing fast measurements of the concentration of one or more target gases over a broad temperature range. | 03-31-2011 |
20110128546 | Variable Penetration Depth Biosensor - A surface plasmon resonance sensor system including a high refractive index prism, a sensor chip, a light source having multiple wavelengths over a broad range of wavelengths, optical lenses, a photodetector, a data acquisition unit, and as defined herein. The sensor chip can include, for example, a thin layer of silicon and gold on one face of a transparent substrate and the prism adjacent to the opposite face of the transparent substrate. Such an arrangement provides variable penetration depths up to about 1.5 micrometers with a dynamic range for sensing index of refraction changes in a sample that are several times greater than that of a conventional SPR sensor. The disclosure provides methods for using the surface plasmon resonance sensor system for cell assay or chemical assay related applications. | 06-02-2011 |
20110171746 | Variable Penetration Depth Biosensor Methods - A surface plasmon resonance sensor system including a high refractive index prism, a sensor chip, a light source having multiple wavelengths over a broad range of wavelengths, optical lenses, a photodetector, a data acquisition unit, and as defined herein. The sensor chip can include, for example, a thin layer of silicon and gold on one face of a transparent substrate and the prism adjacent to the opposite face of the transparent substrate. Such an arrangement provides variable penetration depths up to about 1.5 micrometers with a dynamic range for sensing index of refraction changes in a sample that are several times greater than that of a conventional SPR sensor. The disclosure provides methods for using the surface plasmon resonance sensor system for cell assay or chemical assay related applications. | 07-14-2011 |
20110205619 | Wavelength Conversion Device With Microlens And Optical Package Incorporating The Same - An optical package is provided comprising a laser diode and a wavelength conversion device. The laser diode and the wavelength conversion device define an external laser cavity and the wavelength conversion device is tilted relative to the output face of the laser diode to define a tilt angle φ that is less than approximately 85°. The input face of the wavelength conversion device comprises a pair of tapered facets and a microlens. The pair of tapered facets and the microlens are defined on the input face such that they share respective portions of the facial waveguide region on the input face, with the tapered facets occupying peripheral portions of the facial waveguide region on the input face and the microlens occupying an interior portion of the facial waveguide region on the input face. Each of the pair of tapered facets define a facet angle α within the facial waveguide region that is less than the facet angle α and is greater than approximately 45°. Additional embodiments are disclosed and claimed. | 08-25-2011 |
20110265520 | Methods For Determining The Rotational Characteristics Of An Optical Fiber - A method for determining a rotational characteristic of an optical fiber is disclosed. The method includes forming an orientation registration feature in an optical fiber preform and drawing an optical fiber from the preform such that the orientation registration feature formed in the optical fiber preform is imparted to the optical fiber. The optical fiber is then rotated about a longitudinal axis and the direction of rotation is periodically reversed. An orientation signal of the optical fiber is determined based on a position of the orientation registration feature as the optical fiber is rotated. A rotational characteristic of the optical fiber is then determined based on the orientation signal. | 11-03-2011 |