40, 50 and 100 Gb/s optical transceivers/transponders in 300pin and CFP MSA modules
Granted: September 16, 2014
Patent Number:
8837951
Disclosed by way of exemplary embodiments, a 40/50/100 Gb/s Optical Transceivers/transponders which use opto-electronic components at data rates collectively that are lower than or equal to half the data rate, using two optical duobinary carriers. More specifically, the exemplary embodiments of the disclosed optical transceivers/transponders relate to a 43 Gb/s 300pin MSA and a 43˜56 Gb/s CFP MSA module, both include a two-carrier optical transceiver and the appropriate hardware…
Wavelength router with feedback control comprising optical monitor ports
Granted: August 12, 2014
Patent Number:
8805187
An optical waveguide router device with feedback control that uses the fringe frequencies of an optical data signal to derive a wavelength (e.g., temperature) control signal in order to compensate for wavelength variations due to temperature fluctuations and/or other wavelength shifting factors without the need for a reference laser. A monitoring circuit converts an output of at least one output monitoring port to an electrical signal and comparing the output of said at least one output…
Three dimensional engineering of planar optical structures
Granted: March 18, 2014
Patent Number:
8673407
Three dimensional optical structures are described that can have various integrations between optical devices within and between layers of the optical structure. Optical turning elements can provide optical pathways between layers of optical devices. Methods are described that provide for great versatility on contouring optical materials throughout the optical structure. Various new optical devices are enabled by the improved optical processing approaches.
Monitoring and control of electronic devices
Granted: March 4, 2014
Patent Number:
8666518
A method, a system, and a computer program product for managing one or more electronic devices. Performance of an electronic device is monitored and presented to a user through a digital agent interface. The performance of the electronic device is controlled automatically by digital agent through the digital agent interface. The invention also enables automatic testing of the electronic device through the digital agent interface by setting up test configurations, activating test signals,…
Semiconductor optical function device
Granted: January 14, 2014
Patent Number:
8630516
A semiconductor optical function device includes a semiconductor substrate having a substrate edge surface; an optical waveguide formed on the semiconductor substrate; a non-waveguide region formed on the semiconductor substrate between the optical waveguide and the substrate edge surface; and an insulation region disposed around the optical waveguide and having a semiconductor interface contacting with the non-waveguide region on a side of the substrate edge surface. The semiconductor…
Optical network configurations with multiple band multiplexing and de-multiplexing and AWG structures with multiple band processing
Granted: October 22, 2013
Patent Number:
8565600
Optical networks can comprise a branch structure with the de-multiplexing/multiplexing structure that operates to disperse a plurality of optical bands. Thus, the optical network comprises an optical network connection with a common optical channel, a plurality of de-multiplexed branch optical service connections and the de-multiplexing/multiplexing structure. In some embodiments, one optical band can be used to deliver input from a common channel to the branch node and the other optical…
Thermally compensated arrayed waveguide grating assemblies
Granted: September 17, 2013
Patent Number:
8538212
Arrayed waveguide grating can have one or both slab waveguides with relatively sharply folded optical paths and a mirror that provides the folding of the path. The folded optical paths through the slab waveguides can result in a more compact geometry of the waveguides through the device as well as smaller slab waveguides such that the device can be formed with a significantly smaller overall footprint. Also, arrayed waveguide gratings that cooperate with pivotable mirrors can adjust…
Distributing optical power with a power balance ratio substantially constant over a broadband of wavelengths
Granted: May 14, 2013
Patent Number:
8442369
Methods of using an optical device capable of distributing the optical power presented at an input to specified ratios in two output ports. The devices and methods described herein have the ability to broaden the range of wavelengths over which the splitting ratio is even, or substantially even. Methods involve achieving a desired splitting ratio over a broad or ultra-broad wavelength range.
40, 50 and 100 Gb/s optical transceivers/transponders in 300pin and CFP MSA modules
Granted: April 30, 2013
Patent Number:
8433202
Disclosed by way of exemplary embodiments, a 40/50/10 Gb/s Optical Transceivers/transponders which use opto-electronic components at data rates collectively that are lower than or equal to half the data rate, using two optical duobinary carriers. More specifically, the exemplary embodiments of the disclosed optical transceivers/transponders relate to a 43 Gb/s 300 pin MSA and a 43˜56 Gb/s CFP MSA module, both include a two-carrier optical transceiver and the appropriate hardware…
Optical attenuator
Granted: October 2, 2012
Patent Number:
8280218
A tilting mirror MEMS variable optical attenuator attenuates light over a band of wavelengths with minimum wavelength dependent loss. The attenuator includes a lens that has a wedged input face and is made from a material that has high dispersion. The lens design causes different wavelengths to travel different paths through the attenuator such that wavelength dependent loss is reduced. The attenuator may be designed to have minimum wavelength dependent loss at a specified attenuation…
Method for reducing capacitance and improving high frequency performance in vertical cavity surface emitting lasers (VCSELs)
Granted: May 22, 2012
Patent Number:
8184668
A VCSEL structure is provided. The VCSEL structure comprises a substrate. The structure may also include one or more conducting layers positioned on the substrate. There may be void spaces positioned between portions of the conducting layers to electrically isolate the portions. A method for fabricating the VCSEL structure is also provided.
Monitoring and control of electronic devices
Granted: February 28, 2012
Patent Number:
8126577
A method, a system, and a computer program product for managing one or more electronic devices. Performance of an electronic device is monitored and presented to a user through a digital agent interface. The performance of the electronic device is controlled automatically by digital agent through the digital agent interface. The invention also enables automatic testing of the electronic device through the digital agent interface by setting up test configurations, activating test signals,…
Method for forming optical fiber preforms
Granted: March 15, 2011
Patent Number:
7905114
Optical fiber preforms can comprise a glass preform structure with an inner cavity. A powder can be placed within the inner cavity having an average primary particle size of less than about one micron. The powder can be in the form of an unagglomerated particles or a powder coating with a degree of agglomeration or hard fusing ranging from none to significant amounts as long as the primary particles are visible in a micrograph. Powders can be placed within a preform structure by forming…
Method for reducing capacitance and improving high frequency performance in vertical cavity surface emitting lasers (VCSELs)
Granted: March 8, 2011
Patent Number:
7903712
A VCSEL structure is provided. The VCSEL structure comprises a substrate consisting of a III-V material. The structure may also include one or more conducting layers positioned on said substrate. There may be void spaces positioned between portions of the conducting layers to electrically isolate the portions. A method for fabricating the VCSEL structure is also provided.
Optical materials and optical devices
Granted: August 17, 2010
Patent Number:
7776406
Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or metalloid elements and corresponding compositions. In particular, metalloid oxides and metal-metalloid compositions are described in the form of improved nanoscale particles and coatings formed from the nanoscale particles. Compositions comprising rare earth metals and dopants/additives with rare…
Method for improving high frequency operation of a vertical cavity surface emitting laser (VCSEL) with monolithically integrated bridge arm
Granted: July 13, 2010
Patent Number:
7756168
A vertical cavity laser apparatus is provided. In one embodiment, the apparatus includes an electrically responsive substrate; a support block positioned on the electrically responsive substrate; a bridge arm structure coupled to the support block, the structure having a base; a laser active area on the bridge arm structure, a tuning pad on the bridge arm structure, a laser bond pad on the bridge arm structure with traces connecting the laser bond pad to the laser active area and base.…
Thermal control of optical components
Granted: May 18, 2010
Patent Number:
7720328
A linearized thermal and optical model of an optical integrated circuit can be used to temperature-stabilize one or more optical elements of the circuit using active temperature regulation. To stabilize a single optical element, a temperature sensor and a heater can be provided proximate to the grating. Thermal and optical coefficients can be then used to select an appropriate temperature set-point for the temperature controller that receives readings from the sensor and determines the…
Printed circuit boards for high-speed communication
Granted: October 13, 2009
Patent Number:
7601919
Apparatus and method for communicating high-speed signals between a primary printed circuit board and one or more secondary printed circuit boards. The high-speed signals are communicated between the primary printed circuit boards and the secondary printed circuit boards through multi-layer flexible conductors.
Broadband 2×2 optical splitter
Granted: September 8, 2009
Patent Number:
7587138
An optical device containing a four-port optical mixer capable of distributing the optical power presented at either or both of two input ports to specified ratios in two output ports.
Methods to reduce polarization dependent loss in planar lightwave circuits
Granted: August 18, 2009
Patent Number:
7577324
Polarization dependent loss may be reduced by providing at least one dummy waveguide or at least one dummy metal structure. Polarization dependent loss may also be reduced by imposing a mechanical force on the OIC to exert mechanical stress thereby changing at least one of the birefringence and the optical axes of at least one waveguide. And polarization dependent loss may be reduced by forming a metal heater using a first set of metal deposition parameters; forming a conductive metal…
