Globalfoundries U.S. Inc.

International Business Machines Corporation

David B Riggs

Karen A Nummy

Shuren Hu

Rajarao Jammy

Andreas Daniel Stricker

Kenneth John Giewont

Christopher Carr Parks

Jessie Carrigan Rosenberg

Bo Peng

Kevin K Dezfulian

John I Kim

Stephen M Lucarini

Francis Afzal

George L Mack

Embodiments of the disclosure provide a demultiplexer for processing a multiplexed optical input. The demultiplexer may include a plurality of Mach-Zehnder Interferometric (MZI) stages for converting the multiplexed optical input into a plurality of component optical signals. Each of the plurality of component optical signals corresponds to a respective wavelength-space component of the multiplexed optical input. A plurality of bandpass filters, each having a respective wavelength passband, may receive one of the plurality of component optical signals. The plurality of bandpass filters generates a plurality of demultiplexed optical signals based on the plurality of component optical signals.

Demultiplexer and related method to process multiplexed optical inputs

Structures for a filter and methods of fabricating a structure for a filter. The filter is coupled to a waveguide core. The filter includes a first plurality of grating structures positioned adjacent to a first section of the waveguide core and a second plurality of grating structures positioned adjacent to a second section of the waveguide core. The first plurality of grating structures are configured to cause laser light in a first portion of a wavelength band to be transferred between the first section of the waveguide core and the first plurality of grating structures. The second plurality of grating structures are configured to cause laser light in a second portion of a wavelength band to be transferred between the second section of the waveguide core and the second plurality of grating structures.

Grating-based filters for photonics applications

A process for removing dopant ions from a semiconductor substrate includes exposing the substrate to a non-aqueous organic solvent in liquid and/or vapor form.

Process for removing dopant ions from a substrate

Growing community of inventors

Fairfield, CT, United States of America

David B Riggs