| Patent application number | Description | Published |
|---|
| 20100278478 | MULTI-CHANNEL OPTICAL COUPLER - A solid core, multi-channel optical coupler comprising an elongate mixer body having an input end, an output end and sidewalls forming a length of the mixer body, where the input end is configured for coupling to a plurality of input channels providing an optical signal for transmission through the mixer body, and a plurality of output tapers coupled to the output end. Each of the output tapers has a reception area adjacent the output end of the mixer body for receiving a portion of the optical signal transmitted through the mixer body. Furthermore, the reception area of each output taper is variable to vary the intensity of the optical signal received by the output taper. | 11-04-2010 |
| 20100296820 | FREE SPACE OPTICAL INTERCONNECT - A system such as a server ( | 11-25-2010 |
| 20110013913 | IMAGE-ROTATION PRISMS AND OPTICAL INTERCONNECTS EMPLOYING THE SAME - Embodiments of the present invention relate to a family of image-rotation prisms. Each image-rotation prism has the property that as an image-rotation prism is rotated, an image passing through the image-rotation prism rotates at twice the angular rate of the image-rotation prism. Embodiments of the present invention include optical systems that can be used for board-to-board communications and employ the image-rotation prisms to compensate for arbitrary axial rotations and misalignment of optical signals and can be used to direct optical signals output from transmitters on one board to particular detectors of a detector arrangement located on an adjacent board. | 01-20-2011 |
| 20110026129 | PRISM BEAMSPLITTERS - Embodiments of the present invention are directed to single prism beamsplitters and compound beamsplitters formed from combining one or more of the single prism beamsplitters. In one embodiment, the beamsplitters can be configured to produce one or more split beams of light that can emerge at angles other than 90° to one another. The prisms of the beamsplitter embodiments are configured so that light propagating through prisms encounter one or more intermediate planar surfaces at various angles with respect to the path of the light. A certain number of the intermediate planar surfaces can be angled so that the light transmitted along a particular path undergoes total internal reflection within the prism. A number of other intermediate planar surfaces are angled so that the light transmitted along a particular path does not undergo total internal reflection. | 02-03-2011 |
| 20110058812 | Optically Enabled Broadcast Bus - Embodiments of the present invention are directed to optical multiprocessing buses. In one embodiment, an optical broadcast bus includes a repeater, a fan-in bus optically coupled to a number of nodes and the repeater, and a fan-out bus optically coupled to the nodes and the repeater. The fan-in bus is configured to receive optical signals from each node and transmit the optical signals to the repeater, which regenerates the optical signals. The fan-out bus is configured to receive the regenerated optical signals output from the repeater and distribute the regenerated optical signals to the nodes. The repeater can also serve as an arbiter by granting one node at a time access to the fan-in bus. | 03-10-2011 |
| 20110058817 | ARRAYS, SYSTEM AND METHOD FOR BI-DIRECTIONAL DATA TRANSMISSION - A system for bi-directional data transmission includes a first array coupled to a first subsystem and a second array coupled to a second subsystem. The first array includes a first plurality of transmitters that produce first optical signals that are transmitted through free space, and a first plurality of receivers. The second array includes a second plurality of transmitters that produce second optical signals that are transmitted through free space to the first plurality of receivers, and a second plurality of receivers that is configured to receive the first optical signals. An image-forming apparatus is operatively positioned between the first and second arrays and is configured to concurrently form an image of the first plurality of transmitters on the second plurality of receivers and an image of the second plurality of transmitters on the first plurality of receivers. | 03-10-2011 |
| 20110188033 | MOLECULE DETECTION USING RAMAN LIGHT DETECTION - An apparatus for detecting at least one molecule using Raman light detection includes a substrate for supporting a sample containing the at least one molecule, a laser source for emitting a laser beam to cause Raman light emission from the at least one molecule, a modulating element for modulating a spatial relationship between the laser beam and the substrate at an identified frequency to cause the Raman light to be emitted from the at least one molecule at the identified frequency, at least one detector for detecting the Raman light emitted from the at least one molecule, and a post-signal processing unit configured to process the detected Raman light emission at the identified frequency to detect the at least one molecule. | 08-04-2011 |
| 20110188034 | SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING VIBRATING NANORODS - A surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a plurality of nanorods configured to vibrate. The apparatus includes the nanorods having tips at free ends opposite an end attached to a substrate. The tips are configured to adsorb an analyte and to vibrate at a vibration frequency. The apparatus further includes a vibration source configured to vibrate the free ends of the nanorods at the vibration frequency in a back-and-forth motion. Vibration of the nanorods is configured to facilitate detection of a Raman scattering signal emitted by the analyte adsorbed on the nanorod tips. The system further includes a synchronous detector configured to receive the Raman signal and to be gated cooperatively with the vibration of the nanorods. The method includes inducing a vibration of the nanorods, illuminating the vibrating tips to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
| 20110188035 | VIBRATING TIP SURFACE ENHANCED RAMAN SPECTROSCOPY - A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
