International Business Machines Corporation

Minnesota Mining and Manufacturing Company

Lexmark International, Inc.

Daniel Michael Kuchta

Benjamin G Lee

Clint Lee Schow

Laurent Schares

Devendra K Sadana

Bahman Hekmatshoartabari

Joel Pereira De Souza

Fuad Elias Doany

Ali Afzali-Ardakani

Russell Alan Budd

Alexander V Rylyakov

Jeannine Madelyn Trewhella

Nicolas Dupuis

Glen Walden Johnson

Petar K Pepeljugoski

Evan G Colgan

Mark B Ritter

Mitchell S Cohen

Monty Montague Denneau

Albert E Ruehli

Christian Schuster

Thomas E Morf

Nicholas A Lee

Mehmet Soyuer

Christian I Menolfi

Marc A Taubenblatt

Sylvain E Ouimet

Alessandro Cevrero

Ilter Özkaya

Marc Seifried

Marco Gauvin

Stephen Louis Spanoudis

Stephane Tremblay

Andre Lacerte

Casimer M DeCusatis

Mark Delorman Schultz

Eugen Schenfeld

Steven Alan Cordes

Malcolm Scott Allen-Ware

Joel Leonard Wolf

James L Speidell

Sandip Tiwari

Nagui Halim

Yoonho Park

Jeremy Daniel Schaub

William K Hogan

Blake G Fitch

Jonathan E Proesel

James R Giles

Xiaolan Zhang

Kirsten Weale Hildrum

Albert X Widmer

Deepak Rajan

Jungwook Yang

Rohit Wagle

Robert S Germain

Dennis L Rogers

Christian Wilhelmus Baks

Thomas Walter Keller

Michael James Cordes

Dianne L Lacey

Michael M Tsao

John D Crow

Philip A Sciuto

John Considine

Steve Koester

Kevin Clarke

Joseph P Zinter

Phillippe L Selo

Doron Shiloach

David D Wright

Casimer Decusatis

An optical module includes an optoelectronic assembly and a heat spreader. The optoelectronic assembly includes a flat, rigid substrate, an array of electrical contacts positioned on a first portion of the substrate, and an optoelectronics assemblage that is electrically connected to the array of contacts and is positioned apart from the array of electrical contacts. The heat spreader is comprised of a thermally conductive material and comprises a second portion that is structurally connected to the first portion and a third portion that is thermally connected to the optoelectronics assemblage.

Co-packaged optical module

Systems, computer-implemented methods, and computer program products to facilitate rotated polarization detection and adjustment are provided. According to an embodiment, a system can comprise a memory that stores computer executable components and a processor that executes the computer executable components stored in the memory. The computer executable components can comprise an optical component that can comprise a polarization monitor component that can detect a rotated polarization state of an optical signal. The computer executable components can further comprise a second optical component that can comprise a polarization controller component that can control a rotation polarization state of the second optical component. The computer executable components can further comprise a feedback loop component that can couple the polarization monitor component to the polarization controller component.

Polarization-insensitive optical link

Silicon-based or other electronic circuitry is dissolved or otherwise disabled by reactive materials within a semiconductor chip should the chip or a device containing the chip be subjected to tampering. Triggering circuits containing normally-OFF heterojunction field-effect photo-transistors are configured to cause reactions of the reactive materials within the chips upon exposure to light. The normally-OFF heterojunction field-effect photo-transistors can be fabricated during back-end-of-line processing through the use of polysilicon channel material, amorphous hydrogenated silicon gate contacts, hydrogenated crystalline silicon source/drain contacts, or other materials that allow processing at low temperatures.

Semiconductor chip having tampering feature

Methods and systems for bias control in an optical switch fabric include monitoring optical power at outputs of a plurality of switch elements in an N&#xd7;N switch fabric that has N inputs, N outputs, and M&#x2265;2 stages, each switch element having a respective unique radio frequency tone. A bias control of each of the plurality of switch elements is adjusted. It is determined whether the optical power at the outputs of each respective switch element after bias control adjustment conform more closely to a predetermined criterion relative to the monitored optical power at the outputs of the respective switch element prior to adjustment.

Optical switch fabric with bias control

Devices and methods are provided to reduce the wake-up time of a Vertical Cavity Surface Emitting Laser (VCSEL) used in a data communication link. For example, in one aspect, a method for optical communications includes, in an optical communication device including a light-emitting device, applying a bias current to the light-emitting device and transmitting a pulse to the light-emitting device before transmitting a preamble signal or data signal to the light-emitting device, wherein the pulse has a voltage greater than a highest voltage of the preamble signal or data signal.

VCSEL based optical links in burst mode

Embodiments include techniques for device analysis and failure prediction, the techniques include measuring or collecting parametric data of the device at a configurable interval, wherein the parametric data includes one or more parameters, and receiving operating limits for the parametric data based on specifications or characteristics for the device. The techniques also include determining a trend of the measured or collected parametric data of the device, and filtering noise from the trend based at least in part on at least one of other devices exhibiting a deviation exhibited by the device or system state changes associated with system log files. The techniques include identifying a failure stage of the device based on at least one of the trend or the received operating limits, and transmitting a notification of a predicted failure based at least in part on the identification.

Optical module and link operationanalysis and failure prediction

A semiconductor device that includes a layer of highly crystalline semiconductor material positioned on an insulating substrate. The semiconductor device also includes a source structure and a drain structure positioned on the layer of highly crystalline semiconductor material. The semiconductor device also includes a photoelectric element positioned on the layer of highly crystalline semiconductor material. The photoelectric element forms an electrical junction with the layer of highly crystalline semiconductor material. The photoelectric element is positioned between the source structure and the drain structure. The photoelectric element is also electrically floating.

Illumination sensitive current control device

Node interconnect architectures to implement a high performance supercomputer are provided. For example, a node interconnect architecture for connecting a multitude of nodes (or processors) of a supercomputer is implemented using an all-to-all electrical and optical connection network which provides two independent communication paths between any two processors of the supercomputer, wherein a communication path includes at most two electrical links and one optical link.

Node interconnect architecture to implement high-performance supercomputer

Embodiments of the present disclosure include an optical shuffle box. The optical shuffle box may include a set of optical connector ports and a set of optical fiber pigtails. Each optical fiber pigtail may have a first end and a second end. The second end of each optical fiber pigtail may include an optical connector. Each optical connector port may be communicatively coupled to the first end of two or more optical fiber pigtails.

Multidimensional torus shuffle box

A system comprises a first optical component comprising a component body; at least a first waveguide formed in the component body, wherein the first waveguide is substantially mirror-symmetrical in shape relative to a line at or near the center of the first waveguide; and a self-alignment feature configured to assist in optically-coupling the first waveguide with a second waveguide located outside of the component body.

Optical component with angled-facet waveguide

Methods and systems for bias control in an optical switch fabric include monitoring optical power at outputs of a plurality of switch elements in an N&#xd7;N switch fabric that has N inputs, N outputs, and M&#x2265;2 stages. A bias control of a first of the plurality of switch elements is adjusted. It is determined whether the optical power at the outputs of the first switch element after bias control adjustment conform more closely to a predetermined criterion relative to the monitored optical power at the outputs of the first switch element prior to adjustment. The adjusting and determining steps are repeated for each of the remainder of the plurality of switch elements.

Growing community of inventors

Patterson, NY, United States of America

Daniel Michael Kuchta