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7630126 |
Two-pump optical parametric devices having reduced stimulated Raman scattering noise levels
Two-pump optical parametric devices (OPDs), and methods of operating the same, generate desired output signals and idlers having reduced stimulated Raman scattering (SRS) noise levels. When the...
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7630417 |
Crystal whispering gallery mode optical resonators
Whispering-gallery-mode (WGM) optical resonators made of crystal materials to achieve high quality factors at or above 10 10 .
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7626756 |
Coating for optimising output coupling of em radiation
A coating between a nonlinear crystal and a silicon prism coupler, prevents transmission of radiation scattered within the crystal by filtering out frequencies outside the silicon bandgap to avoid...
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7602544 |
Wavelength conversion device and wavelength conversion method
A wavelength conversion device that obtains, from an input light, a wavelength-converted light with a wavelength shift by a wavelength shift amount of Δλ is disclosed. The device comprises first...
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7538935 |
All-optical, continuously tunable, pulse delay generator using wavelength conversion and dispersion
A technique for generating variable pulse delays uses one or more nonlinear-optical processes such as cross-phase modulation, cross-gain modulation, self-phase modulation, four-wave mixing or...
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7535627 |
Optical antenna array for harmonic generation, mixing and signal amplification
An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used...
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7535935 |
Spectroscopic catheter system with widely tunable source and method of operation
A laser system for a spectroscopic catheter system uses multiple semiconductor gain media having gain peaks at different wavelengths. The output from the gain media is preferably coupled into...
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7495824 |
Infrared waveguide optical parametric oscillator
An integrated broad spectral band waveguide optical parametric oscillator (OPO) is disclosed. In accordance with a preferred embodiment of the present invention, a single pump laser is used to...
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7489437 |
Fiber laser red-green-blue (RGB) light source
An RGB light source that uses an optical fiber laser to generate a near-infrared (NIR) output light beam, and a wavelength conversion system that receives the output NIR light beam and forms...
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7486435 |
Multi-port optical parametric oscillator
An optical parametric oscillator includes a source of coherent energetic pump optical signals and an optical resonator cavity which includes a set of optical parametric amplifying (OPA) crystals...
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7463410 |
Optical frequency converter for non-polarized light
Optical apparatus including an optical frequency conversion device, pumped by a non-polarized light beam. The apparatus may include a pump incident side, such as an optical fiber emitting...
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7453626 |
Four-wave mixing source of squeezed light for image processing and interferometry
A four-wave mixing squeezed light source includes: a mixing medium having chi(3) non-linear characteristics including two atomic ground states coupled to each other by transitions through...
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7450298 |
Optical signal waveform shaping apparatus
An optical signal and pump light are input to a nonlinear optical medium. In the nonlinear optical medium, the optical signal is amplified with a nonlinear effect caused by the pump light. A...
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7436580 |
Optical buffer employing four-wave mixing
An optical buffer employing Bragg scattering (BS), in which two pump signals are combined with an input (data) signal in a four-wave mixing (FWM) medium to frequency convert the input signal into...
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7408701 |
Multi-frequency light source
A multi-frequency light producing method and apparatus multiplies the number of optical channels present in an incident wavelength division multiplexed (WDM) signal light source by four-wave mixing...
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7405868 |
Cavity-enhanced optical parametric amplification
A simple and low-cost apparatus amplifies short optical pulses (e.g., in the femtosecond domain) to high pulse energies using energy stored in an enhancement cavity. The enhancement cavity is first...
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7405869 |
Method and system of local oscillator signal generation
Methods and apparatus for local oscillator generation are provided. In a method embodiment, a method of signal processing includes splitting a signal having a first frequency into at least a first...
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7403327 |
Wavelength conversion element having multi-gratings and light generating apparatus using said element, and wavelength conversion element having cylindrical ferroelectric single crystals and light generating apparatus using said element
A wavelength conversion element having multi-gratings free from damage propagation and a light generating apparatus using it, and a wavelength conversion element having multi-gratings to make a...
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7397598 |
Light source unit and light irradiation unit
In nonlinear optical crystal 183 D, each step of wavelength conversion can be performed using another fundamental wave that is output from light output unit 161 2 , without using the fundamental...
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7388710 |
Optical parametric amplifier
An optical parametric amplifier of the invention comprises a nonlinear amplification section to which a signal light and a pump light are injected via a coupler. The nonlinear amplification section...
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7385752 |
Disposal of residual radiation from a frequency-conversion process
A frequency-conversion arrangement including one or more optically nonlinear crystals is located in an enclosure. Radiation residual from the frequency conversion is directed into an optical fiber...
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7382523 |
Beam-guiding and/or frequency-converting optical system and method for producing the same
The present invention relates to a beam-guiding and/or frequency-converting optical system as well as to a method of manufacturing same, wherein a beam-emitting optoelectronic component ( 1 ),...
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7352506 |
Method and system for sensing environmental characteristics
A system for sensing characteristics of the environment is disclosed. Sensors utilize exponential growth of a signal initiated by interaction of a sensor element with characteristics of the...
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7349149 |
Doubly-resonant optical parametric oscillator with corresponding pump recycling
The oscillator comprises two resonant cavities in which a non-linear crystal ( 3 ) is situated. The incident pumping radiation R pe follows an emitting path across the crystal, the generated...
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7349609 |
Terahertz radiation generation and methods therefor
Terahertz radiation generation systems and methods are implemented using a variety of methods and devices. According to an example embodiment of the present invention, method for generating...
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7339722 |
Hybrid nonlinear optical conversion and optical parametric oscillation
A nonlinear frequency conversion system includes a first element including a first medium configured to perform type II birefringent phase matching (BPM) of a pump beam to provide corresponding...
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7339718 |
Generation of terahertz radiation in orientation-patterned semiconductors
A method for generating THz radiation comprises illuminating a semiconductor crystal with an optical pulse train. The semiconductor crystal comprises alternating parallel crystal domains, with each...
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7330300 |
Optical frequency mixer and method for the same
An optical frequency mixer according to one embodiment of the present invention comprises a V-shaped resonant cavity including a first reflective surface, a second reflective surface and an output...
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7324267 |
Four-wave-mixing based optical wavelength converter device
A wavelength converter device is provided for generating a converted radiation at frequency ω g through interaction between at least one signal radiation at frequency ω s and at least one pump...
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7304788 |
Translation of individual and entangled states of light by four-wave mixing in fibers
Optical frequency conversion by four-wave mixing in a fiber is considered. If the frequencies and polarizations of the waves are chosen judiciously, four-wave mixing enables the translation of...
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7298545 |
High repetition rate visible optical parametric oscillator
A tunable coherent light source includes a pump laser for generating a pump beam and an optical parametric oscillator including a crystal exhibiting an output curve for a pump beam of a defined...
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7280268 |
Injection-seeded optical parametric oscillator and system
Optical parametric oscillators (OPO) and systems are provided. The OPO has a non-linear optical material located between two optical elements where the product of the reflection coefficients of the...
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7248397 |
Wavelength-doubling optical parametric oscillator
A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of...
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7248396 |
Large bandwidth optical parametric amplifier
WDM optical signals are amplified using optical parametric amplification by applying an appropriate separation of those optical signals according to their carrier angular frequencies. These angular...
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7239440 |
Wavelength conversion apparatus
The present invention relates a wavelength conversion apparatus capable of making the wavelength of output light constant even when the wavelength of input light is changed. The wavelength...
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7198738 |
Cesium-lithium-borate crystal and its application to frequency conversion of laser light
The present invention provides a cesium-lithium-borate crystal, which can be used as a high-performance wavelength converting crystal, having a chemical composition expressed as CsLiB6O10, and...
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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...
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7177069 |
White light source based on nonlinear-optical processes
A white light source has a light emission device, in particular an IR laser diode, whose emitted radiation beam is converted, in a nonlinear-optical element and a conversion element, into a...
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7173754 |
Frequency conversion efficiency
A phasor can be employed within the resonator of an optical parametric oscillator (OPO) to adjust the absolute and relative phase of OPO beams. An embodiment of the invention comprises an OPO...
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7173755 |
High-efficiency multiple-pass nonlinear optical wavelength converter with an electro-optic phase compensator and amplitude modulator
A high-efficiency multiple-pass nonlinear wavelength converter and amplitude modulator employs a variable dispersion element between adjacent passes of a nonlinear wavelength conversion process in...
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7164526 |
Parametric amplification using two pump waves
An optical parametric amplifier (OPA) driven with at least two pump waves. The pump waves may be configured such that the OPA produces uniform exponential gain over a range of wavelengths that...
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7151415 |
Injection locked dual opto-electronic oscillator
An injection locked dual opto-electronic oscillator having a master oscillator which generates a high Q RF output signal with a plurality of harmonic signals within a predetermined pass band. A...
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7145715 |
Multiple pump parametric apparatus having no idler broadening
A multi-pump phase modulator apparatus and operating method uses only one phase modulator to eliminate SBS without degrading idler(s). The single phase modulator phase modulates multiple pump...
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7139490 |
All-optical wavelength converter circuit
A method and apparatus for transferring information of an optical information-bearing signal from a first wavelength to a second wavelength. The method is implemented in an all-optical wavelength...
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7139115 |
Athermalization of an optical parametric oscillator
A method for thermally stabilizing an optical parametric oscillator (OPO) 10 to maintain constant optical path length for stable high power output places a beam dump 32 outside an OPO cavity ...
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7130109 |
Optical signal amplification device
An optical signal amplification device for outputting an output signal light which has the same wavelength as an input signal light and an intensity variation identical in phase with an intensity...
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7113325 |
Wavelength conversion method with improved conversion efficiency
A nonlinear optical conversion device includes a nonlinear crystal having entrance and exit surfaces allowing input and output laser beams to propagate in the phase-matching plane for a desired...
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7106496 |
Element for wavelength conversion and/or optical computing
When forming a periodically-poled structure on a nonlinear optical crystal 1 that permits wavelength conversion and/or optical computing, the group velocity matching conditions are determined to...
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7106498 |
Blue-light generating femtosecond wavelength-tunable non-collinear optical parametric amplifier
The present invention discloses a means of the generation of tunable femtosecond pulses from 380 nm to 465 nm near the degenerate point of a 405-nm pumped type-I BBO non-collinearly phase-matched...
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7092146 |
Method and apparatus for controlling a SOA-MZI wavelength converter
A method and apparatus for controlling an optical gain difference and an optical phase difference in a semiconductor optical amplifier—Mach-Zehnder interferometer (SOA-MZI) wavelength converter...
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