| Patent application number | Description | Published |
|---|
| 20080199123 | ULTRAFAST GE/SI RESONATOR-BASED MODULATORS FOR OPTICAL DATA COMMUNICATIONS IN SILICON PHOTONICS - An optical modulator structure includes at least two waveguide structures for inputting and outputting an optical signal. At least one ring resonator structure provides coupling between the at least two waveguide structures. The at least one ring resonator structure includes Ge or SiGe. | 08-21-2008 |
| 20080224121 | SPONTANEOUS EMISSION OF TELECOMMUNICATION WAVELENGTH EMITTERS COUPLED TO AT LEAST ONE RESONANT CAVITY - Systems and methods for devices that include a structure having at least one resonant cavity and at least one emitter having an emission frequency that is substantially in the telecommunication wavelengths are provided. The emission frequency can be coupled to the resonant frequency of resonant cavity so that emitted wavelengths corresponding to the resonant wavelengths of the resonant cavity are enhanced. Moreover, the devices of the present invention may be capable of operating at room temperatures. | 09-18-2008 |
| 20080315177 | LIGHT EMISSION USING QUANTUM DOT EMITTERS IN A PHOTONIC CRYSTAL - Devices and methods of manufacturing; for emitting substantially white light using a photonic crystal are described. The photonic crystal has a lattice of air holes and is made from a substrate containing quantum dots. The substrate is etched with three defects that are optically coupled together so that each emits only certain frequencies of light. In combination, the defects can produce substantially white light. The parameters of the photonic crystal are dimensioned so as to cause the coupling between the defects to produce substantially white light. | 12-25-2008 |
| 20090092156 | DEVICES AND METHODS FOR PROVIDING STIMULATED RAMAN LASING - Devices and methods for providing stimulated Raman lasing are provided. In some embodiments, devices include a photonic crystal that includes a layer of silicon having a lattice of holes and a linear defect that forms a waveguide configured to receive pump light and output Stokes light through Raman scattering, wherein the thickness of the layer of silicon, the spacing of the lattice of holes, and the size of the holes are dimensioned to provide Raman lasing. In some embodiments, methods include forming a layer of silicon, and etching the layer of silicon to form a lattice of holes with a linear defect that forms a waveguide configured to receive pump light and output Stokes light through Raman scattering, wherein the thickness of the layer of silicon, the spacing of the lattice of holes, and the size of the holes are dimensioned to provide Raman lasing. | 04-09-2009 |
| 20090191657 | ALL-SILICON RAMAN AMPLIFIERS AND LASERS BASED ON MICRO RING RESONATORS - Methods of manufacturing a lasing device are provided by some embodiments, the methods including: creating a silicon micro ring with a predetermined radius and a predetermined first cross-sectional dimension; creating a silicon waveguide with a predetermined second cross-sectional dimension, the silicon waveguide spaced from the silicon micro ring by a predetermined distance; and wherein the predetermined distance, the predetermined radius, the predetermined first cross-sectional dimension, and the predetermined second cross-sectional dimension are determined so that at least one first whispering gallery mode resonant frequency of the silicon micro ring and at least one second whispering gallery mode resonant frequency of the silicon micro ring are separated by an optical phonon frequency of silicon. | 07-30-2009 |
| 20090269002 | SYSTEMS AND METHODS FOR SENSING PROPERTIES OF A WORKPIECE AND EMBEDDING A PHOTONIC SENSOR IN METAL - Systems and methods for sensing properties of a workpiece and embedding a photonic sensor in metal are disclosed herein. In some embodiments, systems for sensing properties of a workpiece include an optical input, a photonic device, an optical detector, and a digital processing device. The optical input provides an optical signal at an output of the optical input. The photonic device is coupled to the workpiece and to the output of the optical input. The photonic device generates an output signal in response to the optical signal, wherein at least one of an intensity of the output signal and a wavelength of the output signal depends on at least one of thermal characteristics and mechanical characteristics of the workpiece. The optical detector receives the output signal from the photonic device and is configured to generate a corresponding electronic signal. The digital processing device is coupled to the optical detector and determines at least one of the thermal characteristics and mechanical the characteristics of the workpiece based on the electronic signal. | 10-29-2009 |
| 20100270481 | SYSTEMS, DEVICES AND METHODS FOR TUNING A RESONANT WAVELENGTH OF AN OPTICAL RESONATOR AND DISPERSION PROPERTIES OF A PHOTONIC CRYSTAL WAVEGUIDE - Some embodiments of the disclosed subject matter provide systems, devices, and methods for tuning resonant wavelengths of an optical resonator. Some embodiments of the disclosed subject matter provide systems, devices, and methods for tuning dispersion properties of photonic crystal waveguides. In some embodiments, methods for tuning a resonant wavelength of an optical resonator are provided, the methods including: providing an optical resonator having a surface; determining an initial resonant wavelength emitted by the optical resonator in response to an electromagnetic radiation input; determining a number of layers of dielectric material based on a difference between the initial resonant wavelength and a target resonant wavelength and a predetermined tuning characteristic; and applying the determined number of layers of dielectric material to the surface of the optical resonator to tune the initial resonant wavelength to a tuned resonant wavelength. | 10-28-2010 |
| 20110147344 | DEVICES AND METHODS FOR PROVIDING STIMULATED RAMAN LASING - Devices and methods for providing stimulated Raman lasing are provided. In some embodiments, devices include a photonic crystal that includes a layer of silicon having a lattice of holes and a linear defect that forms a waveguide configured to receive pump light and output Stokes light through Raman scattering, wherein the thickness of the layer of silicon, the spacing of the lattice of holes, and the size of the holes are dimensioned to provide Raman lasing. In some embodiments, methods include forming a layer of silicon, and etching the layer of silicon to form a lattice of holes with a linear defect that forms a waveguide configured to receive pump light and output Stokes light through Raman scattering, wherein the thickness of the layer of silicon, the spacing of the lattice of holes, and the size of the holes are dimensioned to provide Raman lasing. | 06-23-2011 |
