| Patent application number | Description | Published |
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| 20080298417 | OPTICAL SPECTRAL FILTERING AND DISPERSION COMPENSATION USING SEMICONDUCTOR OPTICAL AMPLIFIERS - The invention provides a device and a method for extending the bandwidth of short wavelength and long wavelength fiber optic lengths. The invention provides for an optical transmitter package device comprising: a laser diode; and a semiconductor optical amplifier connected directly after and in close proximity to the laser diode, wherein the semiconductor optical amplifier is adapted to operate in a frequency domain such that the semiconductor optical amplifier filters and reshapes optical wavelengths from the laser diode, and wherein the semiconductor optical amplifier is biased below an amplification threshold for the semiconductor optical amplifier. The device may also comprises a feedback circuit which comprises an optical splitter, wherein the feedback circuit samples reshaped optical output from the semiconductor optical amplifier and dynamically adjusts one or both of the semiconductor optical amplifier and the laser diode. In the case of a multimode fiber, the present invention provides the additional ability to provide a controlled offset launch into the fiber and the ability to control modal noise devoid of a specialized optical connector. | 12-04-2008 |
| 20090022181 | OPTICAL SPECTRAL FILTERING AND DISPERSION CONTROL FOR WAVELENGTH MULTIPLEXED LASER SOURCES USING FIBER BRAGG GRATINGS - The embodiments of the invention provide an apparatus for optical spectral filtering and dispersion control for wavelength multiplexed laser sources using fiber Bragg gratings. More specifically, the apparatus includes a laser diode having a first end and a second end opposite the first end. The first end of the laser diode has a first semi-transparent portion; and, the second end of the laser diode has a second semi-transparent portion. The apparatus further includes an optical fiber connected to the second end of the laser diode. The optical fiber has a first end and a second end opposite the first end, wherein the first end of the optical fiber is connected to the second end of the laser diode. The laser diode comprises a laser cavity; and, the optical fiber comprises an extension of the laser cavity. Moreover, the second end of the optical fiber has a reflective surface. | 01-22-2009 |
| 20090161709 | MULTICHIP PACKAGE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a multichip package comprising an optoelectronics assembly; a socket that houses the optoelectronics assembly; the socket being in electrical communication with the optoelectronics assembly; a plate having a first surface and a second surface; the first surface being opposedly disposed to the second surface; a portion of the first surface contacting a portion of the socket to provide thermal contact between the socket and the plate; a serpentine channel being disposed between the plate and the socket to provide a passage for a communication cable that is in operative communication with the optoelectronics assembly; and a heat exchanger in thermal contact with the plate; the heat exchanger being operative to cool the multichip package. | 06-25-2009 |
| 20090161877 | Method, system, and computer program product for encryption key management in a secure processor vault - A method for encryption key management including accepting authenticated unencrypted data into a processor of a server computing device that is configured as a private key secure processor vault, the operation of which is isolated from other components of the server computing device thereby preventing unauthorized access to the processor and the data contents therein; encrypting the authenticated unencrypted data based on an existing private key stored in the processor thereby converting it to encrypted data; and transmitting the encrypted data out of the processor. A system and computer program product is also provided. | 06-25-2009 |
| 20090165076 | METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR DATA SECURITY POLICY ENFORCEMENT - A method for data security policy enforcement including inspecting incoming and outgoing data packets from a server computing device for attributes in accordance with a data security policy, processing the data packets in accordance with the security policy based on the inspected attributes, and routing the data packets in accordance with the security policy based on the inspected attributes, wherein incoming and outgoing data from the server computing device composed of the data packets is processed and routed in accordance with the security policy on a per-packet basis. A system and computer program product is also provided. | 06-25-2009 |
| 20100119237 | DYNAMIC TUNABLE LOW LATENCY CHROMATIC DISPERSION COMPENSATOR - A dynamic tunable chromatic dispersion compensator with low latency is provided that includes a chirped fiber Bragg grating in a compensating optical fiber core. The chirped fiber Bragg grating includes wavelength gratings spaced at distances varying with respect to the length of the compensating optical fiber core to compensate for differential delay in a synchronous time protocol for a bidirectional computer data communication link. The dynamic tunable chromatic dispersion compensator also includes one or more controllable elements to modify the length of the compensating optical fiber core in response to one or more commands, and an optical junction to optically couple the chirped fiber Bragg grating to an optical fiber of the bidirectional computer data communication link. | 05-13-2010 |
| 20100172099 | Metal Clad Fiber Optics for Enhanced Heat Dissipation - An integrated optical I/O and semiconductor chip with a direct liquid jet impingement cooling assembly are disclosed. Contrary to other solutions for packaging an optical I/O with a semiconductor die, this assembly makes use of a metal clad fiber, e.g. copper, which will actually enhance cooling performance rather than create a design restriction that has the potential to limit cooling capability. | 07-08-2010 |
| 20100206627 | ELECTROMAGNETIC INTERFERENCE SHIELDING APPARATUS AND METHOD - A shielding apparatus has first and second electrically conductive sheets attached to an interior of a housing. A gap between the first and second electrically conductive sheets has a size based on a predefined desired cutoff frequency, and the widths of the first and second electrically conductive sheets are no more than twice the size of the gap. The lengths of the first and second electrically conductive sheets are at least four times the size of the gap. | 08-19-2010 |
| 20100275064 | CONFIGURATION VALIDATION SYSTEM FOR COMPUTER CLUSTERS - A method of validating a configuration of a computer clusters includes transmitting a first neighbor identification to a first flexible service processor (FSP) arranged in the first computer cluster and a second neighbor identification to a second FSP arranged in the second computer cluster, connecting a first end of a cable to a first transceiver arranged in the first cluster and connecting a second end of the cable to a second transceiver arranged in the second cluster. The first neighbor identification is passed from the first transceiver to the second computer cluster and the second neighbor identification is passed from the second transceiver toward the first computer cluster. The first neighbor identification is compared with a desired first neighbor identification to establish a first comparison result, and the second neighbor identification is compared with a desired second neighbor identification to establish a second comparison result and a notice is generated. | 10-28-2010 |
| 20100275071 | VALIDATION OF COMPUTER INTERCONNECTS - A method of validating multi-cluster computer interconnects includes calculating a cable interconnect table associated with the multi-cluster computer, and distributing the cable interconnect table to a first transceiver in the first computer cluster and a second transceiver in the second computer cluster. The method also includes connecting a first end of a cable to the first transceiver and a second end of the cable to the second transceiver, transmitting a first neighbor identification from the first cluster to the second cluster, and a second neighbor identification from the second cluster to the first cluster, comparing the first neighbor identification with a desired first neighbor identification from the cable interconnect table to establish a first comparison result and the second neighbor identification with a desired second identification from the cable interconnect table to establish a second comparison result, and generating an alert based on the first and second comparison results. | 10-28-2010 |
| 20110038633 | SYNCHRONIZING EVENTS ON A COMMUNICATIONS NETWORK USING A VIRTUAL COMMAND INTERFACE - A virtual network operating center and a virtual command interface synchronize events occurring on a wavelength division multiplexed network with processing events in a connected server. Should a disaster or other interruption of the network occur, the virtual command interface synchronizes events which occur on the network and any attached servers or server clusters with a reference clock coupled to the server. An event queue connected to the virtual command interface preserves the order of messages having a time stamp and compares the timestamps with the reference clock coupled to the server which is used to determine data integrity. The queued events may be encoded as XML device call to update the representation of the network or portions thereof in the virtual network operation center. | 02-17-2011 |
| 20110038634 | NETWORK PROTECTION SWITCHING - Servers attached to a data communications network, such as a wavelength division multiplexed network, are made aware of events on the network, such as a protection switch for scheduled maintenance to reduce latency and improve performance, etc. Switching data paths on the data communications network is no longer transparent to the server. A message from the network equipment is received and decoded by a holographic enterprise interface coupled to the server and to a virtual network operation centers. The network equipment reports network switch conditions to the holographic enterprise interface and other connected servers. In response to the network switch conditions, the holographic enterprise interface may automatically reprovision data traffic on the network quickly enough to prevent server timeouts and workload interruptions. The switching is then shown in real time in the virtual network operations center. | 02-17-2011 |
| 20110040860 | VALIDATION OF THE CONFIGURATION OF A DATA COMMUNICATIONS NETWORK USING A VIRTUAL NETWORK OPERATIONS CENTER - A virtual network operating center (VNOC) automatically and in real time obtains and validates the configuration of a data communications network, such as a wavelength division multiplexed network. The VNOC acquires network configuration data using SNMP commands and server configuration information from the hardware management console. The VNOC collates this data and validates configuration requirements for working and backup fiber paths, client protocols, data rates, regeneration requirements, and other considerations. Both ends of a network can be automatically provisioned and commissioned from a single location wherein the ends may be separated by 100 kilometers or more. | 02-17-2011 |
| 20110040896 | PROVISIONING AND COMMISSIONING A COMMUNICATIONS NETWORK WITH A VIRTUAL NETWORK OPERATIONS CENTER AND INTERFACE - An interface coupled to a virtual network operations center and coupled to a data communications network having at least one optical channel. Equipment on the data communications network is identified by the interface wherein the interface coordinates and correlates communications between the I/O interfaces of a server coupled to the network so that data rates and data protocols are managed properly. The interface receives commands from and transmits commands to the data communications network and translates the commands to be further transmitted and used in the virtual network operations center coupled to the server. The data communications network is represented in a three dimensions virtual world in the virtual network operations center so that events on the network can be represented in real-time in the virtual network operations center. | 02-17-2011 |
| 20110068957 | DATA COMPRESSION SYSTEM AND ASSOCIATED METHODS - A system to compress an inter-system channel data stream may include a data compression application executing via a computer processor. The system may additionally include a transmit dictionary used by said data compression application to compress an inter-system channel data stream. The system may also include a data decompression application executing via a second computer processor to decompress the inter-system channel data stream. The system may further include a receive dictionary used by said data decompression application to decompress the inter-system channel data stream. | 03-24-2011 |
| 20110089589 | SPIN-MOUNTED FABRICATION OF INJECTION MOLDED MICRO-OPTICS - Methods and systems for fabrication of injection molded optical components are disclosed. In one embodiment, a moldplate having one or more cavities is configured to receive injected optical material within walls of the cavities. The cavities are designed with a predetermined geometric profile approximately corresponding to a predetermined optical profile of an optical element to be formed therein. When molten optical material is injected into the cavities of the moldplate, the injected optical material forms a meniscus due to surface tension between the optical material and the wall of the cavities. The meniscus thus provides a shape corresponding to the predetermined optical profile. The optical material is then rapidly cured with actinic radiation, and a desired optical element with high-precision dimensions is formed within the cavities of the moldplate. In some embodiments, the moldplate is spun around a spin axis such that the meniscus is adjusted to match the predetermined optical profile within a certain tolerance. | 04-21-2011 |
| 20110089590 | ENHANCED SEPARATION OF INJECTION MOLDED MICROLENSES FOR HIGH VOLUME MANUFACTURING - A method and system for enhanced demolding of injection molded optical devices are disclosed. In one embodiment the system includes a metal moldplate without a coat of release layer and a curing device that generates high intensity pulses of UV light. The method includes: providing a moldplate made of a predetermined moldplate material; directly injecting optical material into cavities of a moldplate without a release layer; rapidly curing the injected optical material with high intensity pulses of UV light such that a predetermined optical device is formed; and separating the thus formed optical device from the cavities of the moldplate due to a differential thermal expansion between the optical device material and the moldplate material. | 04-21-2011 |
| 20110090570 | FABRICATION OF OPTICAL FILTERS INTEGRATED WITH INJECTION MOLDED MICROLENSES - Injection molding of monolithically integrated optical components is disclosed. In one embodiment, an injection molding system includes a moldplate having an array of specially designed cavities. In at least one cavity, different types of photo-curable optical materials are injected in an ordered sequence. In a first instance, a lens material is injected into the cavity and subsequently cured to form a predetermined lens element at the base of the cavity. In a second instance, a filter material is injected into the cavity above the already formed lens element. The filter material is also cured, and an optical filter is formed stacked onto the lens element and contained within sidewall of the cavity. In this manner, a complex optical component having an optical filter automatically aligned with, and monolithically integrated into, a lens element is readily formed in a single injection molding process. | 04-21-2011 |
| 20110119444 | ADAPTIVE CACHING OF DATA - Data access is facilitated by employing local caches and an adaptive caching strategy. Specific data is stored in each local cache and consistency is maintained between the caches. To maintain consistency, adaptive caching structures are used. The members of an adaptive caching structure are selected based on a sharing context, such as those members having a chosen association identifier or those members not having the chosen association identifier. | 05-19-2011 |
| 20110122983 | FREQUENCY LOCKED FEEDBACK LOOP FOR WIRELESS COMMUNICATIONS - A method and systems for a frequency locked feedback loop for wireless communications are provided. The method includes applying dither modulation from a harmonic modulator to modulated data at a transmit source, and mixing the dither modulation at a dither modulation frequency with the modulated data at a wireless carrier frequency to produce a modulated signal. The method also includes filtering and splitting the modulated signal using a bandpass filter to produce a wireless output signal and a feedback signal. The method further includes determining a frequency error in the feedback signal as a function of alignment of the wireless carrier frequency to a target frequency in a frequency response of the bandpass filter. The method additionally includes adjusting the wireless carrier frequency in response to the frequency error to establish a frequency lock between the wireless carrier frequency and the target frequency. | 05-26-2011 |
| 20110145603 | ENERGY MANAGEMENT FOR DATACENTERS - A datacenter schedules and executes requests to conserve energy. The datacenter uses an event-based opportunistic approach to schedule and run the requests, which provides energy efficiency. The requests are hierarchically batched and sent to the datacenter for scheduling and execution. They are selectively sent over low power links and selectively serviced by low power processors. | 06-16-2011 |
| 20110149385 | SYSTEM TO CONTROL AN OPTICAL SIGNAL - A system to control an optical signal may include a semiconductor laser diode. The system may also include an optical amplifier to receive an optical signal from the semiconductor laser diode. The optical amplifier may be configured to spectrally filter the optical signal. | 06-23-2011 |
