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| Number | Title | Issue Date |
| 8170386 | Optical pulse generating apparatus Optical pulse compressor having a chirp unit including a normal dispersion fiber that provides a positive chirp to an input pulse and having a dispersion compensator including an anomalous fiber is provided. The nonlinear coefficient and the absolute value of the se... | 05/01/2012 |
| 8170387 | Laser based frequency standards and their applications Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same. ... | 05/01/2012 |
| 8165440 | Laser based frequency standards and their applications Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same. ... | 04/24/2012 |
| 8145024 | Optical communications system The present invention relates to an optical communications system that allows improving OSNR while suppressing the power increase of pumping light for distributed Raman amplification. In the optical communications system, an optical fiber is laid in a transmission s... | 03/27/2012 |
| 8145023 | Lifetime extending and performance improvements of micro-structured fibers via high temperature loading The disclosure relates to an optical fiber including a core and a cladding having a core material and a cladding material, respectively, wherein the fiber is a non-linear microstructured optical fiber, the microstructured optical fiber being obtainable by a method i... | 03/27/2012 |
| 8078026 | Device for canceling the wavelength dependence of the nonlinearity coefficient of microstructured fibers Since the magnitude of a nonlinear effect depends on the nonlinearity coefficient of the microstructured fiber and the intensity of pump light, either the nonlinearity coefficient or the intensity of pump light are adjusted. The nonlinearity coefficient is modified ... | 12/13/2011 |
| 8055108 | Broadband or mid-infrared fiber light sources A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or m... | 11/08/2011 |
| 8041169 | Optical signal processing device An optical signal processing device has nonlinear optical medium, first and second power controllers, and polarization controllers. To the nonlinear optical medium, signal light, and first and second pumping lights having wavelengths different from the signal light ... | 10/18/2011 |
| 8005331 | Surface-plasmon-assisted optical frequency conversion A frequency-conversion method that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the ... | 08/23/2011 |
| 7995888 | Multimode optical fibers A multimode optical fiber has an equivalent modal dispersion value (DMDinner&outer) of less than 0.11 ps/m for (Δλmax×D)>0.07 ps/m as measured on a modified DMD graph. The modified DMD graph accounts for chromatic dispersion to ensure that t... | 08/09/2011 |
| 7957619 | All-fiber module for femtosecond pulse compression and supercontinuum generation An all-fiber optical pulse compression arrangement comprises a concatenated arrangement of a section of input fiber (e.g., a single mode fiber), a graded-index (GRIN) fiber lens and a section of pulse-compressing fiber (e.g., LMA fiber). The GRIN fiber lens is used ... | 06/07/2011 |
| 7925131 | Optical logic gate An optical logic gate (10) comprises: first and second optical inputs (11, 12) for receiving respective optical signals (A, B) and an optical output (15) for outputting an optical signal (Pout) which represents the result of applying ... | 04/12/2011 |
| 7920766 | Surface-plasmon-assisted optical frequency conversion An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the... | 04/05/2011 |
| 7899292 | Thermal nonlinearity cell for guiding electromagnetic energy through a nonlinear medium A guiding nonlinearity cell. The novel nonlinearity cell includes a nonlinear medium and a waveguide adapted to guide input electromagnetic energy through the nonlinear medium. In an illustrative embodiment, the cell includes a thin layer of a liquid or solid nonlin... | 03/01/2011 |
| 7894696 | Integrated optical modulator Systems and methods for manipulating light with high index contrast waveguides clad with crystalline substances having that exhibit large nonlinear electro-optic constants χ2 and χ3. Waveguides fabricated on SOI wafers and clad with crystalli... | 02/22/2011 |
| 7894695 | Tricyclic spacer systems for nonlinear optical devices A compound for spacing nonlinear optical chromophores of the Formula I and the commercially acceptable salts, solvates and hydrates thereof, wherein R1, R2, R3, R4, W, X, Y, Z, Q | 02/22/2011 |
| 7865048 | Nested waveguides A radiation source or detector including a nested waveguide structure is provided. A smaller waveguide provides wave guiding for radiation of shorter wavelength. The smaller waveguide is embedded within a larger waveguide that provides wave guiding for radiation of ... | 01/04/2011 |
| 7844152 | Kerr effect compensated optical ring resonator Systems and methods for compensating for nonlinear phase shift accumulation in an optical ring resonator. An example method includes sending a first beam in a clockwise direction around the optical ring resonator and sending a second beam in a counterclockwise direc... | 11/30/2010 |
| 7809222 | Laser based frequency standards and their applications Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same. ... | 10/05/2010 |
| 7769262 | Optical compressor and ultra-short pulse light source Provided is an ultra-short pulse light source having an optical pulse generator 111 for emitting short pulse light, an optical amplifier 112 for amplifying the short pulse light output from the optical pulse generator 111 and an optical compress... | 08/03/2010 |
| 7729585 | Light source apparatus with modulation function and its driving method A light source apparatus with modulation function has a wavelength conversion module (75) composed of a nonlinear optical material with a structure having a nonlinear constant modulated periodically. It outputs a difference frequency or sum frequency produced... | 06/01/2010 |
| 7720339 | All-optical logic gates using nonlinear elements—claim set V An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 05/18/2010 |
| 7706649 | Optical processing device and optical processing method An optical processing device includes: a light source that outputs second light having a first polarization state or a second polarization state in synchronization with the pulse timing of the pulse of first light; a first nonlinear medium that controls the polariza... | 04/27/2010 |
| 7689081 | All-optical logic gates using nonlinear elements claim—set V An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 03/30/2010 |
| 7680379 | Broadband light source in particular for short coherence interferometry The invention relates to an arrangement for generating a broadband spectrum which can be used in particular as a light source for short coherence interferometry. The arrangement comprises a laser, in particular a laser diode, for generating a short light pulse of wa... | 03/16/2010 |
| 7664355 | All-optical gates using nonlinear elements-claim set III An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 02/16/2010 |
| 7643714 | Nanophotonic devices in silicon Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants χ2 and χ3. Waveguides fabricated on SOI wafers and clad with electro-optic polymer... | 01/05/2010 |
| 7630607 | Optical fiber device An optical fiber device converts an input optical pulse having a predetermined center wavelength into an optical pulse having a wavelength bandwidth broader than that of the input optical pulse. The optical fiber device includes a plurality of optical fibers connect... | 12/08/2009 |
| 7599592 | Polymer fiber polarizers with aligned fibers A polarizing film is made of multilayer polarizing fibers embedded within a matrix. The fibers are formed with layers of at least a first and a second polymer material. Layers of the first polymer material are disposed between layers of the second polymer material. ... | 10/06/2009 |
| 7551822 | Nonlinear optical signal-treating apparatus A nonlinear optical signal-treating apparatus can suppress the distortion of pulse light to be inputted into an optical fiber to an allowable level or less. The apparatus comprises a pulse light source for outputting first pulse light, a first optical fiber, a secon... | 06/23/2009 |
| 7522798 | Nonlinear optical signal-treating apparatus A nonlinear optical signal-treating apparatus can suppress the distortion of pulse light to be inputted into an optical fiber to an allowable level or less. The apparatus comprises a pulse light source for outputting first pulse light, a first optical fiber, a secon... | 04/21/2009 |
| 7522799 | All-optical logic gates using nonlinear elements—claim set VI An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 04/21/2009 |
| 7519253 | Broadband or mid-infrared fiber light sources A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or m... | 04/14/2009 |
| 7515801 | Coherent terahertz radiation source A THz radiation source comprising a dual waveguide heterostructure is provided. The dual waveguide heterostructure includes an optical waveguide contained within a larger THz waveguide layered structure. The radiation source provides a coherent guided wave of THz ra... | 04/07/2009 |
| 7512302 | All-optical logic gates using nonlinear elements claim set v An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 03/31/2009 |
| 7483609 | Image wavelength conversion device, method of manufacturing the device, and image conversion system using the device An image wavelength conversion device for converting an infrared light image into a visible light, a method of manufacturing the device, and an image conversion system using the device are provided. The image wavelength conversion device is formed by an optical wave... | 01/27/2009 |
| 7483608 | Method of designing optical pulse shaping device and optical pulse shaping device The present invention provides a method for designing an optical pulse shaper including a first optical propagation line unit having a nonlinear medium and a dispersion medium concatenated, including: specifying design specifications of the first optical propagation... | 01/27/2009 |
| 7480434 | Low loss terahertz waveguides, and terahertz generation with nonlinear optical systems A silicon based source for radiation in the 0.5-14 Terahertz regime. This new class of devices will permit continuously tunable, milli-Watt scale, continuous-wave, room temperature operation, a substantial advance over currently available technologies. The Silicon T... | 01/20/2009 |
| 7474827 | Devices and methods for all-optical processing and storage Devices and methods for optical processing and storage are described. In a preferred embodiment, an integrated optical gate matrix, that includes a set of nonlinear elements and waveguides interconnecting at least some nonlinear elements in the set of nonlinear elem... | 01/06/2009 |
| 7463804 | All-optical logic gates using nonlinear elements—claim set IV An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 12/09/2008 |
