Patent application number | Description | Published |
20090110348 | Magnetically Activated Photonic Switches And Switch Fabrics Employing The Same - Various embodiments of the present invention are directed to photonic switches and switch fabrics employing the photonic switches. In one embodiment of the present invention, a photonic switch comprises a first waveguide disposed on a surface of a substrate in proximity to an opening in the substrate, and a second waveguide crossing the first waveguide and positioned in proximity to the opening in the substrate. The photonic switch includes a tunable microring resonator disposed on the surface of the substrate adjacent to the first waveguide and the second waveguide and configured with an opening aligned with the opening in the substrate. The photonic switch also includes a wire having a first end and a second end and configured to pass through the opening in the microring and the opening in the substrate. | 04-30-2009 |
20090188552 | Nanowire-Based Photovoltaic Cells And Methods For Fabricating The Same - Embodiments of the present invention relate to nanowire-based photovoltaic cells and to methods for fabricating the same. In one embodiment, a photovoltaic cell includes a first semiconductor layer doped with a first impurity and disposed on a portion of a first raised surface of a substrate and a second semiconductor layer doped with a second impurity and disposed on a second raised surface of the substrate. The first semiconductor layer has at least one negatively sloped surface, and the second semiconductor layer has at least one positively sloped surface neighboring the at least one negatively sloped surface of the first semiconductor layer. The photovoltaic cell includes at least one nanowire electronically coupled to the negatively sloped surface of the first semiconductor layer and electronically coupled to the positively sloped surface of the second semiconductor layer. | 07-30-2009 |
20090189145 | Photodetectors, Photovoltaic Devices And Methods Of Making The Same - A photodetector includes a first layer, a second layer and a plurality of nanowires established between the first and second layers. At least some of the plurality of nanowires have a bandgap that is different from a bandgap of at least some other of the plurality of nanowires. | 07-30-2009 |
20090190892 | Photonic Connection And Method For Enhancing Alignment Accuracy Thereof - A photonic connection includes a first fiber and a second fiber. The first fiber has a core with a first predetermined pattern defined on or in a facet thereof, and the second fiber has a core with a second predetermined pattern defined on or in a facet thereof. The second predetermined pattern is complementary to the first predetermined pattern such that the first fiber or the second fiber fits into another of the second fiber or the first fiber at a single orientation and position. | 07-30-2009 |
20090244716 | System And Method For An In-plane Hollow Metal Waveguide Optical Power Beam Splitter - A system and methods for dividing an optical beam in a hollow metallized waveguide are disclosed. The method includes directing an optical signal into a first section of a hollow metallized waveguide. The optical signal is adiabatically expanded in a second section of the hollow metallized waveguide coupled to the first section. The optical signal is split with an in-plane optical beam splitter located in a third section of the hollow metallized waveguide coupled to the second section. | 10-01-2009 |
20090244855 | Data Processing Modules And Systems - Data processing modules including a housing and connectors carried by the housing, and systems including the same. | 10-01-2009 |
20090245718 | Optical Sensor And Method Employing Half-Core Hollow Optical Waveguide - An optical sensor, sensing system and method of sensing employ a half-core hollow optical waveguide adjacent to a surface of an optical waveguide layer of a substrate. The half-core hollow optical waveguide and the adjacent optical waveguide layer cooperatively provide both an optical path that confines and guides an optical signal and an internal hollow channel. The optical path and channel extend longitudinally along a hollow core of the half-core hollow optical waveguide. The system further includes an optical source at an input of the optical path and an optical detector at an output of the optical path. A spectroscopic interaction between an analyte material that is introduced into the channel and an optical signal propagating along the optical path determines a characteristic of the analyte material. | 10-01-2009 |
20090246425 | Systems And Methods For Auto-Aligning Members Bearing Correlated Patterns - A method of aligning first and second mating surfaces includes: generating a random or pseudo-random function; convolving the random or pseudo-random function with a spread function to produce a correlated function; forming a pattern of bi-polar material on the first mating surface based on a quantization of the correlated function; and forming a complementary pattern of the bi-polar material on the second mating surface. The complementary patterns exert a force on each other toward a desired alignment of the first and second mating surfaces. A system includes a first member having a first correlated pattern of material disposed on a first mating surface; and a second member having a second correlated pattern of material disposed on a second mating surface, wherein the second correlated pattern is complementary to the first correlated pattern. The first and second correlated patterns interact to facilitate a desired alignment of the first and second members. | 10-01-2009 |
20090268770 | Gain Clamped Optical Device For Emitting LED Mode Light - A gain clamped optical device includes a semiconductor stack and a resonant cavity configured to emit stimulated light. A window created in the optical device is configured to emit the stimulated light in an LED mode. | 10-29-2009 |
20090273293 | Light-emitting Diodes With Carrier Extraction Electrodes - One embodiment of the present invention relates to a light-emitting diode having one or more light-emitting layers, a pair of electrodes disposed on the light-emitting diode so that an operating voltage can be applied to generate light from the one or more light-emitting layers, and at least one external electrode in electronic communication with the one or more light-emitting layers. Applying an appropriate voltage to the at least one external electrodes at about the time the operating voltage is terminated extracts excess electrons from the one or more light-emitting layers and reduces the duration of electron-hole recombination during the time period over which the operating voltage is turned off. | 11-05-2009 |
20090274467 | Free-space Photonic Connection Using Wavelength Division Multiplexing And Optical Antenna - An interconnect system has an optical transmitter mounted on a first circuit board and an optical receiver mounted on a second circuit board. The optical receiver can be nominally aligned to receive an optical signal through free space from the optical transmitter. Further, the optical receiver includes one or more light detectors, and an optical antenna coupled to direct incident light into the one or more light detectors. | 11-05-2009 |
20100024869 | Photovoltaic Cells With Stacked Light-Absorption Layers And Methods Of Fabricating The Same - Embodiments of the present invention are directed to photovoltaic cells configured with two or more nanowire-based, light-absorption layers, each layer capable of absorbing a different portion of the electromagnetic spectrum. In one embodiment, a photovoltaic cell comprises a substrate configured with a first planar surface, a second planar surface opposite the first planar surface, and an opening. The photovoltaic cell includes a first photovoltaic cell disposed on the first planar surface and having a first set of nanowires extending over the opening. The photovoltaic cell includes a second photovoltaic cell disposed on the second planar surface and having a second set of nanowires extending over the opening opposite the first set of nanowires. | 02-04-2010 |
20100027941 | Electro-optical Connector And Methods For Aligning - An electro-optical connector including a first connector end and a second connector end. The first connector end is coupled to a first electro-optical device. The second connector end coupled to a second electro-optical device. The second connector is flexibly coupled to a connector base so a second connector face can move flexibly with respect to a first connector face. A force mechanism on at least one connector end applies a force on an interface between the first connector end and the second connector end. The force is applied when the first connector face is within a predefined proximity of the second connector face. A mechanical guide on the connector end can align the first connector face with the second connector face when the force mechanism applies the force. The connector end for the force mechanism or the mechanical guide can be the first connector end or the second connector end. | 02-04-2010 |
20100028018 | Free-Space Optical Interconnect With Asymmetric Light Pipes - An optical interconnect system includes components such as circuit boards, server blades, or a backplane with respective light pipes for an optical signal. The light pipe in a component transmitting the optical signal receives a collimated beam and directs the collimated beam for transmission. The light pipe in a receiving component is nominally aligned with the light pipe pf the transmitting component and separated from the first light pipe by free space. The light pipe on the receiving side is larger than the light pipe on the transmitting side and can therefore accommodate an expected alignment error. | 02-04-2010 |
20100111462 | Ring Light Emitting Diode - An optical apparatus includes an optical resonator ring having at least one active region. The active region is configured to generate optical energy under an electrical stimulus. The optical apparatus also includes a corrugated plasmonic body disposed around at least a portion of the resonator ring and radiatively coupled to the active region. | 05-06-2010 |
20130089289 | COUPLING OF A LASER SOURCE TO AN OPTICAL DATA DISTRIBUTING DEVICE - A computer system has an optical data distributing device for transmitting and distributing optical signals. A laser source generates light for forming the optical signals, and an optical fiber with a graded index of refraction couples the light from the laser source to the optical data distributing device. A lens is disposed to image light generated by the laser source into an input end of the optical fiber. The magnification of the lens is selected as a function of a ratio of a numerical aperture and diameter of the laser source divided by a ratio of a numerical aperture and diameter of the optical fiber. | 04-11-2013 |