Class 359/327 - Raman type

Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein the nonlinear optical device involves
No. of patents: 101
Last issue date: 11/08/2011

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Number	Title	Issue Date
8054537	Light source apparatus The present invention relates to a light source apparatus that has a base structure capable of generating SC light and further having a structure that enables the shaping of the spectral waveform of the SC light, power adjustment of the SC light, or adjustment of th...	11/08/2011
7982943	Light source apparatus The present invention relates to a light source apparatus that has a base structure capable of generating SC light and further having a structure that enables the shaping of the spectral waveform of the SC light, power adjustment of the SC light, or adjustment of th...	07/19/2011
7437083	Wavelength converter A wavelength converter for binary optical signals includes an interferometer structure (110) for generating an output signal by modulating a received local signal (LS) according to the modulation of a fUrther received first input signal (IS 1). When su...	10/14/2008
7403326	Doped fiber scene projection system and method This invention pertains to a scene projection system and a method for projecting a scene that can simulate light temperature of above 2000 K. The system comprises of a light source part for generating light at a lower wavelength; a means part for individually contro...	07/22/2008
7379677	Method of wavelength conversion and wavelength converter The wavelength converter comprises (1) an optical multiplexer for multiplexing an amplitude-modulated first light and reference light, which is continuous light having a wavelength different from the wavelength of the first light, (2) an optical fiber for propagatin...	05/27/2008
7352504	Optical fourier transform device and method Optical Fourier transform is executed over a wide time range. A quadratic function type optical pulse generator (7) generates a control light pulse of a shape expressed by a quadratic function or a parabola according to a clock signal based on a signal light ...	04/01/2008
7339964	Laser diode with phase matching grating A semiconductor diode laser that generates light at wavelengths longer than conventional diode lasers. The laser includes a first gain element that generates a first “pump” laser beam having a first optical frequency and a second gain element that generates a se...	03/04/2008
7336869	System and method for implementing a high capacity unrepeatered optical communication system A method of communicating an optical signal includes generating an optical signal at a bit rate of at least 2.5 Gb/s. The optical signal including at least thirty optical channels. In one particular embodiment, at least some of the thirty optical channels reside wit...	02/26/2008
7286283	Optical fiber coupling arrangement Apparatus for optically pumping a clad amplifier fiber includes one or more transmission fibers arranged and configured to insert pump-light from a pump light source such as a diode-laser into the cladding of the amplifier fiber. The pump light propagates through th...	10/23/2007
7286574	Infrared laser An infrared laser has a seed laser with an optical seed output. A pump amplifier receives the optical seed output and has an amplified output. A molecular gas laser receives the amplified output and has an infrared optical output. ...	10/23/2007
7266258	Two-photon absorption generated carrier lifetime reduction in semiconductor waveguide for semiconductor based raman laser and amplifier A semiconductor based Raman laser and/or amplifier with reduced two-photon absorption generated carrier lifetimes. An apparatus according to embodiments of the present invention includes optical waveguide disposed in semiconductor material and a diode structure disp...	09/04/2007
7259906	System and method for voice control of medical devices A light source includes a wavelength shifter that is capable of shifting a shorter optical signal wavelength to a longer optical signal wavelength based at least in part on a Raman effect in a waveguide. The wavelength shifter includes a pump laser that operable to ...	08/21/2007
7236293	Frequency converter using optical excitation surface plasma and its method A frequency converter having no solid-state devices having nonlinear characteristics and no complex resonator structure and operable in a wide frequency range from microwave frequencies to terahertz wave frequencies. An input section (1) inputs an input wave ...	06/26/2007
7218443	Generation of tunable light pulses A device for generating tunable light pulses has a non-linear optical fiber. The optical spectrum of femtosecond light pulses can be modified by this optical fiber, taking advantage of solitonic effects. In order to make available such a device, which makes it possi...	05/15/2007
7218440	Photonic bandgap fiber for generating near-diffraction-limited optical beam comprising multiple coaxial wavelengths A photonic bandgap assembly used in a laser device for generating a near-diffraction-limited optical beam that comprises simultaneous multiple wavelengths. The photonic bandgap fiber assembly has a plurality of serially connected segments each having a photonic crys...	05/15/2007
7197247	WDM optical communication system The present invention provides a WDM optical communication system, comprising input means and output means for an optical signal, an optical fibre path connecting signal-transmissively said input and output means, wherein the optical signal is amplified by means of ...	03/27/2007
7184616	Method and apparatus for fiber Bragg grating production Fiber Bragg writing devices comprising solid state lasers are provided. The solid state lasers comprise optical parametric oscillators and emit moderate peak-power output beams at wavelengths which are suitable for efficient production of fiber Bragg gratings withou...	02/27/2007
7130045	Monochromator and method of use A monochromator for isolating or recombining a narrowband optical signal from a broadband signal. A cylinder with a continuous outer wall and two planar end surfaces is composed of a dispersive medium. The cylinder forms a multi-reflective cavity, wherein a broadban...	10/31/2006
7110174	Relay telescope for high power laser alignment system A laser system includes an optical path having an intracavity relay telescope with a telescope focal point for imaging an output of the gain medium between an image location at or near the gain medium and an image location at or near an output coupler for the laser ...	09/19/2006
7110645	Method and instrument for microscopy A microscope includes a light source that emits an illuminating light beam for illumination of a specimen, a beam splitter separating measuring light out of the illuminating light beam, and an apparatus for determining the light power level of the illuminating light...	09/19/2006
7106776	Discharge-pumped “dressed-atom” coherent light amplifier and generators A novel practicable type of gaseous optical gain medium for efficiently generating intense, highly monochromatic, continuous-wave (CW) or pulsed, coherent light beams is disclosed. Gain results from nonlinear optical pumping of a gas of Λ-type “three-level” ato...	09/12/2006
7106503	High-resolution optical microscope A direct-view optical microscope system is provided which uses high-energy light from a phenomenon known as non-resonant Raman scattering to illuminate a living biological specimen. One embodiment of the system combines two discrete light sources to form a combined ...	09/12/2006
7061960	Diode-pumped alkali amplifier Compact, high-power, near-diffraction-limited sources of radiation in the near infrared spectral region are provided by a new class of power amplifiers that can be pumped by conventional high-power, multimode, relatively-broadband 1-D and 2-D laser diode arrays, whe...	06/13/2006
7016102	Apparatus and method for shifting the frequency of an optical signal by two-stage Raman scattering An apparatus for optically shifting the frequency of an input signal beam includes a first Raman medium that receives an input signal beam, a first pump beam, and a first reference beam to responsively generate an intermediate signal beam comprising a Raman sideband...	03/21/2006
6992819	High-resolution optical microscope for quick detection of pathogens A direct-view optical microscope system is provided which uses high-energy light from a phenomenon known as non-resonant Raman-scattering to illuminate a biological specimen. One embodiment of the system combines two discrete light sources to form a combined inciden...	01/31/2006
6958854	High efficiency stokes-seeding dual-cell raman shifter A method and apparatus for high-efficiency stimulated Raman Stokes and anti-Stokes scattering is described. A dual-Raman scattering cell configuration is disclosed. A variable pressure of the first Raman cell causes a controllable pressure shift of the Raman-active ...	10/25/2005
6847477	Optical system for converting light beam into plurality of beams having different wavelengths A system for converting a single input beam of light into a plurality of spatially or angularly shifted output beams, each having a different wavelength supplies the single input beam of light to the first of a plurality of cascaded acousto-optical and/or stimulated...	01/25/2005
6690509	High-resolution optical microscope A direct-view optical microscope system is provided which uses high-energy light from a phenomenon known as non-resonant Raman scattering to illuminate a living biological specimen. One embodiment of the system combines two discrete light sources to form ...	02/10/2004
6618531	Variable wavelength short pulse light generating device and method A compact apparatus and a method for generating wavelength-tunable short optical pulses, which apparatus and method can change the wavelength of generated pulses without adjustment of an optical system and enable generation of ideal femtosecond soliton pu...	09/09/2003
6593829	Microstrip dot termination usable with optical modulators A dot termination comprising a disk of thin film resistive material connects a transmission line on a substrate to a DC ground plane in a manner to provide broadband high frequency performance. The dot termination connects to DC ground connections spaced ...	07/15/2003
6587257	Non-linear subcarrier predistortion and upconversion system A method and apparatus for harmonically upconverting a phase and/or amplitude modulated subcarrier signal to a higher frequency through a non-linear optical link is disclosed. The method requires that a bandpass signal, with a carrier frequency at a submu...	07/01/2003
6535328	Methods and devices based on brillouin selective sideband amplification Opto-electronic devices and techniques using Brillouin scattering to select a sideband in a modulated optical carrier signal for amplification. Two lasers respectively provide a carrier signal beam and a Brillouin pump beam which are fed into an Brillouin...	03/18/2003
6330104	Optical wavelength conversion using four wave mixing in fiber A wavelength conversion apparatus and method uses four wave mixing of a first wavelength and a control wavelength in an optical fiber to convert the first wavelength to a desired wavelength. Four wave mixing is produced by operating the optical fiber at a...	12/11/2001
6178036	Opto-electronic devices and systems based on brillouin selective sideband amplification Opto-electronic devices and techniques using Brillouin scattering to select a sideband in a modulated optical carrier signal for amplification. Two lasers respectively provide a carrier signal beam and a Brillouin pump beam which are fed into an Brillouin...	01/23/2001
6163396	Optical wavelength converter A wavelength converter comprises a loop of optical fiber having an entry end (14) and an exit end (16). The entry end of the loop forms an input for a pump wavelength and the exit end forms an outlet for a converted signal. The loop is arranged to produce...	12/19/2000
6101024	Nonlinear fiber amplifiers used for a 1430-1530nm low-loss window in optical fibers An apparatus and method are described for exploiting almost the full almost 25 THz of bandwidth available in the low-loss window in optical fibers (from 1430 nm to 1620 nm) using a parallel combination of optical amplifiers. The low-loss window at about 1...	08/08/2000
6047011	Optical harmonic generator An harmonic generator system for generating at least two output beams (6a, 6b, 6c) of higher order harmonic radiation from an input beam (1) of radiation of frequency ω comprises at least two non linear optical crystals (3a, 3b, 3c) arranged in series. R...	04/04/2000
5796761	High efficiency solid state raman laser system A high efficiency solid state Raman laser system for shifting the frequency of an input beam emitted by a laser pumping system is described. The laser pumping system suppresses relaxation oscillations in the input beam and emits a constant power, mode-loc...	08/18/1998
5721748	Intracavity doubled solid state Raman laser system An intracavity doubled solid state Raman laser system for converting the frequency of a laser input beam emitted by a laser pumping system is described. A solid Raman medium is disposed within a resonator cavity to shift the frequency of the input beam to...	02/24/1998
5563730	Thallium arsenic sulfide crystals (t1₃ AsS₃) high efficiency nonlinear optical applications Crystals formed of Tl3 AsS3 provide very good materials for the nonlinear optical conversion efficiency. The crystals are useful in nonlinear optical devices such as harmonic generators and optical parametric oscillators, and in line...	10/08/1996

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Class 359/327 - Raman type