Featured patents

Multimode Optical Amplifier as a Receiver Pre-Amplifier for Free-Space Optical Communications
US 08837948 B2, Sept. 16, 2014, Wavelength division or frequency division, Daniel J. Creeden et al. / BAE Systems Information and Electronic Systems Integration Inc. (Nashua, US)
An apparatus for processing a signal light from free-space to amplify said signal…

Optical Network Unit With Redundant Reverse Powering From Customer Premises Equipment With Alarm Fault Discrimination Indicative for Power Fault Condition
US 08818192 B1, Aug. 26, 2014, Bidirectional, Steven M. Robinson et al. / Adtran, Inc. (Huntsville, US)
An optical communications system, comprising:…

Systems and Methods for the Compensation of Nonlinear Cross Polarization and Cross Phase Modulation in Dual Polarization Coherent Channels
US 08861960 B2, Oct. 14, 2014, Polarization, Vladimir S. Grigoryan et al. / Ciena Corporation (Hanover, US)
A system for the simultaneous compensation of nonlinear cross polarization…

Optical Interconnect in High-Speed Memory Systems
US 08712249 B2, April 29, 2014, Including optical circuit board, Russel J. Baker et al. / Micron Technology, Inc. (Boise, US)
A memory system comprising:…

Bi-Directional, Compact, Multi-Path and Free Space Channel Replicator
US 08712248 B2, April 29, 2014, Using delay, Edward J. MacMullen et al. / Eastern Optx, Inc. (Moorestown, US)
An apparatus for simulating radio frequency (RF) signal propagation…

Optical Communication Reception System
US 08649690 B2, Feb. 11, 2014, Including postcompensation, James Whiteaway et al. / Cisco Technology, Inc. (San Jose, US)
A method for maintaining a consistent…

Network Interface Device Synchronization
US 08630546 B2, Jan. 14, 2014, Including synchronization, Dean M. Dunnigan et al. / Calix, Inc. (Petaluma, US)
A method comprising:…

Optical Time-Delayed Wavelength Converter
US 08526827 B2, Sept. 3, 2013, Optical Repeater System, Pierre Galarneau et al. / Institut National d'Optique (Quebec, CA)
A method for converting a wavelength of an optical pulsed signal to an output…

Wavelength Division Multiplexing-Passive Optical Network Using External Seed Light Source
US 08494366 B2, July 23, 2013, Bidirectional, Byoung Whi Kim / Electronics and Telecommunications Research Institute (Daejeon, KR)
A wavelength division multiplexing-passive optical network (WDM-PON) comprising:…

Optical IMA Architecture
US 08478124 B1, July 2, 2013, WDM, Raymond Zanoni et al. / Rockwell Collins, Inc. (Cedar Rapids, US)
A system, comprising:…

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