| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Stabilized optical fiber continuum frequency combs using post-processed highly nonlinear fibers | US11417093 | 2006-05-03 | US20060251424A1 | 2006-11-09 | Jeffrey Nicholson; Paul Westbrook |
| An arrangement for generating beat notes with a relatively high signal-to-noise ratio (SNR) utilizes a pulsed laser source coupled into a section of post-processed highly-nonlinear optical fiber (HNLF) to generate a frequency comb having one or more regions of enhanced spectral power. A second laser signal source is overlapped with the frequency comb to form one or more “beat notes” at difference frequencies(y) between the second source and the continuum comb. By virtue of the post-processing, areas of spectral enhancement are formed along the comb, and are positioned to interact with the second laser signal to generate optical beat notes. The second laser signal may be from an external source (forming beat notes from a signal “outside” of the comb), or may be a frequency-multiplied version of the generated supercontinuum (forming beat notes from a signal “within” the comb). | ||||||
| 142 | Optical fiber wavelength converter | US11090077 | 2005-03-28 | US07113326B2 | 2006-09-26 | Masanori Takahashi; Jiro Hiroishi; Hideaki Tobioka |
| An optical fiber wavelength converter inputs signal light and pumping light into an end of the highly nonlinear optical fiber to obtain converted light of the signal light from the other end of the highly nonlinear optical fiber. In the optical fiber wavelength converter, a wavelength λp of the pumping light is set within a range from λ0−1 nanometers to λ0+1 nanometers, where λ0 is a zero-dispersion wavelength of the highly nonlinear optical fiber, an absolute value of a dispersion slope of the highly nonlinear optical fiber with the wavelength λp is not more than 0.02 ps/nm2/km, a nonlinear coefficient γ of the highly nonlinear optical fiber with the wavelength λp is not less than 10/W/km, and a change in a conversion bandwidth D defined as D=|λp−λs2| is not more than 30 percent at variable environmental temperatures ranging from 0° C to 40° C. | ||||||
| 143 | Display illumination system and manufacturing method thereof | US10545128 | 2004-01-20 | US20060139948A1 | 2006-06-29 | Hubertina Petronella Huck; Rifat Hikmet |
| An illumination system (8) comprises an optical waveguide (18) which is made from optically transparent components and has four end faces (10, 10′). A light source (12) whose light is coupled into the optical waveguide (18) via one of the end faces (10), is situated opposite this end face (10). The optical waveguide (18) has a light guide (30). A number of fibres (34) are attached to a surface (32) of the light guide (30). The fibres (34) have birefringent properties. A preferred method of providing the birefringent properties is to stretch fibres (34) of a suitable polymer plastic material in their longitudinal direction. The light from the light source (12) will be polarized by the fibres (34) and polarised light will be outcoupled from the optical waveguide (18) via an exit surface (16). The illumination system (8) may be used for front or back lightning of LCD panels for e.g. mobile phones, PDA's, etc. | ||||||
| 144 | Hybrid fiber polarization dependent isolator, and laser module incorporating the same | US11073316 | 2005-03-04 | US20060139727A1 | 2006-06-29 | Rachid Gafsi; James Hollis; Daniel Nolan; George Wildeman |
| A polarization dependent isolator includes a Faraday element, a linear polarizer positioned at a first end of the Faraday element to polarize light entering the first end of the Faraday element, and a single polarization fiber positioned at a second end of the Faraday element to receive light emerging from the second end of the Faraday element. A laser module includes a semiconductor laser diode, a Faraday element positioned adjacent the semiconductor laser diode, a linear polarizer positioned at a first end of the Faraday element nearest to the semiconductor laser diode to polarizer light passing from the laser diode to the first end of the Faraday element, and a single polarization fiber positioned at a second end of the Faraday element furthest from the semiconductor laser diode to receive light emerging from the second end of the Faraday element, wherein the single polarization fiber also serves as coupling output fiber for the laser module. | ||||||
| 145 | Parametric amplifier with adjustable pump source | US10862578 | 2004-06-08 | US07042635B2 | 2006-05-09 | Anne Legrand; Dominique Bayart |
| The invention is related to a parametric amplifier connected to a pump laser with a control device for adapt the pump laser. This amplifier is used in a transmission system. In addition the invention comprises a method for controlling the pump laser source in an iterative process to optimize the gain of the amplifier. | ||||||
| 146 | Fiber incorporating quantum dots as programmable dopants | US09964927 | 2001-09-26 | US06978070B1 | 2005-12-20 | Wil McCarthy; Gary E. Snyder |
| A programmable dopant fiber includes a plurality of quantum structures formed on a fiber-shaped substrate, wherein the substrate includes one or more energy-carrying control paths (34), possibly surrounded by an insulator (35), which pass energy to quantum structures. Quantum structures may include quantum dot particles (37) on the surface of the fiber or electrodes (30) on top of barrier layers (31) and transport layer (32) which form quantum dot devices (QD). The energy passing through the control paths (34) drives charge carriers into the quantum dots (QD), leading to the formation of “artificial atoms” with real-time tunable properties. These artificial atoms then serve as programmable dopants, which alter the behavior of surrounding materials. The fiber can be used as a programmable dopant inside bulk materials, as a building block for new materials with unique properties, or as a substitute for quantum dots or quantum wires in certain applications. | ||||||
| 147 | Structures for small form factor LiNbO3 optical modulator | US10866949 | 2004-06-12 | US20050276533A1 | 2005-12-15 | Marco Marazzi; Marcello Tienforti; Francesco Schiattone |
| Small form factor package structures are disclosed for LiNbO3 optical modulator by reducing the package dimension for minimize the unused free space inside a modulator package. If a first aspect of the invention, the structure of the small form factor package for LiNbO3 optical modulator employs a metal round block having an inner part that is made of zirconia or glass like borosilicate BK7 or Pyrex and the outer part that is made with stainless steel or kovar. The inner and outer parts represent a two-pieces optical fiber assembly that are held together by a resin. In a second aspect of the invention, a surface of the lithium niobate chip is attached to a surface of the metal round block (or a glass block) that results in an angular positioning of the lithium niobate chip inside the optical package, which significantly reduces the mechanical stress induced by different polishing angle of the metal round block as well as the polishing angle of the lithium niobate chip. | ||||||
| 148 | Display device | US11108732 | 2005-04-19 | US20050231680A1 | 2005-10-20 | Tsuyoshi Hioki; Haruhiko Okumura |
| A display device includes linear structures each having a first conductor linearly extended and a light emitting layer structure which covers at least a part of the conductor, the linear structures being arranged in parallel. The linear structures are electrically insulated by first insulating portions from one another. Second conductors are arranged in parallel so as to cross the linear structures and electrically connected to the light emitting layer structures at crossing portions arranged in a matrix. The linear conductors are electrically insulated by the linear conductors from one another. | ||||||
| 149 | Non-linear positive dispersion optical fiber | US10449970 | 2003-05-30 | US06952515B2 | 2005-10-04 | Dmitri V. Kuksenkov; Ming-Jun Li; Daniel A. Nolan |
| The present invention comprises an optical fiber have a small effective area and a positive dispersion suitable for use in the reshaping and regeneration of optical signals. The optical fiber according to the present invention has an effective area between about 10 μm2 and 16 μ2, and a total dispersion between about 4 ps/nm/km and 8 ps/nm/km. Also disclosed is a method of making the inventive fiber wherein a high core relative refractive index can be achieved. | ||||||
| 150 | Optical control unit and forming method therefor | US10480459 | 2002-06-14 | US06947643B2 | 2005-09-20 | Yoshihiro Takiguchi; Kensaku Itoh |
| An end face 7a of an optical fiber 7 and an end face 8a of an optical fiber 8 are arranged so as to have a predetermined interval and to oppose each other in a V-groove 23 of a base 21. A solution 27 including particles used as a material of the photonic crystal is dropped into a space section 25 which is formed by the end face 7a, the end face 8a, and the V-groove 23. Accordingly, by growing the photonic crystal from each of the end face 7a and the end face 8a, the optical control section including the photonic crystal 2 is formed on each of the end face 7a and the end face 8a. | ||||||
| 151 | Fiber incorporating quantum dots as programmable dopants | US11081778 | 2005-03-16 | US20050157997A1 | 2005-07-21 | Wil McCarthy; Gary Snyder |
| A programmable dopant fiber includes a plurality of quantum structures formed on a fiber-shaped substrate, wherein the substrate includes one or more energy-carrying control paths, which pass energy to quantum structures. Quantum structures may include quantum dot particles on the surface of the fiber or electrodes on top of barrier layers and a transport layer, which form quantum dot devices. The energy passing through the control paths drives charge carriers into the quantum dots, leading to the formation of “artificial atoms” with real-time, tunable properties. These artificial atoms then serve as programmable dopants, which alter the behavior of surrounding materials. The fiber can be used as a programmable dopant inside bulk materials, as a building block for new materials with unique properties, or as a substitute for quantum dots or quantum wires in certain applications. | ||||||
| 152 | Acousto-optic tunable apparatus having a fiber bragg grating and an offset core | US10040526 | 2001-12-28 | US06909823B1 | 2005-06-21 | Wayne V. Sorin; B. Yoon Kim |
| A method and apparatus that microbend a fiber Bragg grating with a transverse acoustic wave. The fiber Bragg grating reflects one or more Nth order sidebands of reflection wavelengths an optical signal in order to couple the band of wavelenghts within from a first mode to a second mode. | ||||||
| 153 | Methods and apparatus for measuring the power spectrum of optical signals | US09811365 | 2001-03-16 | US06801686B2 | 2004-10-05 | Wayne V. Sorin |
| A method of measuring a power spectrum of an optical signal. The optical signal is transmitted through an optical fiber. A power of at least one wavelength of the optical signal is coupled from a first mode to a second mode of the waveguide. The power of the optical signal coupled from the first mode to the second mode is measured at a detector. | ||||||
| 154 | Laser assisted thermal poling of silica based waveguides | US10049334 | 2002-05-30 | US06792166B1 | 2004-09-14 | Wei Xu; Danny Wong; Graham Town; John Canning; Paul Blazkiewicz |
| A method of thermally poling a silica based waveguide (12) comprises exposing a region of the waveguide (12) to an electric field (for example, via capillary electrodes (22, 24) inserted into holes in the waveguide); directing a laser beam (18) into the region exposed to the electric field to effect localized heating of the region via direct absorption; and scanning the laser beam (18) over the region at a rate selected to avoid heating of the region above the glass transition temperature. Reversing the electric field while scanning the laser beam (18) allows the formation of periodic poled gratings. The waveguide (12) can comprise an optical fiber. | ||||||
| 155 | Broad-band variable-wavelength laser beam generator | US10484811 | 2004-01-30 | US20040174914A1 | 2004-09-09 | Susumu Fukatsu |
| There is provided a broadly tunable laser beam generator serving as a laser beam source which utilizes a nonlinear optical effect of a silica (glass) fiber and which is broadly tunable in the near-infrared region, having ultra-broad tunability which has not been easily achieved by known tunable lasers, and generating coherent light which can be continuously swept over the entire wavelength region with a simple mechanical operation of a single wavelength selecting element and which is emitted in a constant direction independent of its wavelength. The laser beam source which utilizes a nonlinear optical effect of a silica optical fiber (8) and which is broadly tunable in the near-infrared region has ultra-broad tunability and generates coherent light which can be continuously swept over the entire wavelength region with a single wavelength selecting element (10). | ||||||
| 156 | Optoacoustic frequency filter | US10253184 | 2002-09-24 | US06788834B2 | 2004-09-07 | Alexei Andreevich Pokrovski; Boris Sergeevich Pavlov; Lev Vassilievich Prokhorov |
| In a tunable optoacoustic filter, a portion of the optical fiber is coiled around and placed at least partially against a rounded shell equipped with at least one longitudinal slit having an emitter and an absorber on both sides of the slit in contact with the shell or the optical fiber. The emitter transmits elastic waves along the shell and therefore along the fiber to the point of absorber. Coiled configuration of the optical fiber along with various positions of emitters and absorbers are presented allowing to widen the functional range of operation of the filter by increasing the usable length of the optical fiber subject to acoustic oscillations. As a result a reflection/conversion coefficient of up to 0.999 and the filtration band of 1-10 kHz are obtainable. | ||||||
| 157 | Optical control unit and forming method therefor | US10480459 | 2003-12-12 | US20040170357A1 | 2004-09-02 | Yoshihiro Takiguchi; Kensaku Itoh |
| An end face 7a of an optical fiber 7 and an end face 8a of an optical fiber 8 are arranged so as to have a predetermined interval and to oppose each other in a V-groove 23 of a base 21. A solution 27 including particles used as a material of the photonic crystal is dropped into a space section 25 which is formed by the end face 7a, the end face 8a, and the V-groove 23. Accordingly, by growing the photonic crystal from each of the end face 7a and the end face 8a, the optical control section including the photonic crystal 2 is formed on each of the end face 7a and the end face 8a. | ||||||
| 158 | All fiber low noise supercontinuum source | US10251464 | 2002-09-20 | US20040057682A1 | 2004-03-25 | Jeffrey W. Nicholson; Man Fei Yan |
| An optical fiber suitable for generation of a supercontinuum spectrum when light pulses of femtosecond (10null15 sec.) duration are launched at a certain wavelength into the fiber. The fiber includes a number of sections of highly non-linear fiber (HNLF) wherein each section exhibits a different dispersion at the wavelength of the launched light pulses. The fiber sections are joined, for example, by fusion splicing the sections in series with one another so that the dispersions of the sections decrease from an input end to an output end of the fiber. In the disclosed embodiment, a low noise, coherent supercontinuum spanning more than one octave is generated at the output end of the fiber when pulses of light of 188 fs duration are launched into the fiber at a repetition rate of 33 MHz and with an energy of three nanojoules per pulse. | ||||||
| 159 | Nonlinear optical device | US10275455 | 2003-06-13 | US20040028356A1 | 2004-02-12 | Timothy Birks; William John Wadsworth; Philip St. John Russell |
| A nonlinear optical device, comprises a source of input light having a first spectrum and an optical fibre 10 arranged so that in use the light propagates through the fibre 10, the optical fibre 10 comprises a tapered region including a waist 30, the waist 30 having a diameter smaller than 10 microns for a length of more than 20 mm, wherein the propagating light is converted by nonlinear optical processes into output light having a spectrum different from the first spectrum. | ||||||
| 160 | Tunable filter with core mode blocker | US09765971 | 2001-01-19 | US06631224B2 | 2003-10-07 | Wayne V. Sorin; Myoung Soo Lee; In-Kag Hwang; Byoung Yoon Kim |
| An optic apparatus includes an optical fiber with a cladding surrounding a core and a core-mode blocker included in at least a portion of an interactive region of the optical fiber. A mode coupler is coupled to the optical fiber and couples a first mode to a different spatial mode in a forward direction of the optical fiber. | ||||||
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