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公开(公告)号：US11105980B1
公开(公告)日：2021-08-31
申请号：US16841963
申请日：2020-04-07
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Shuren Hu , Andreas D. Stricker , Karen A. Nummy , David B. Riggs , Kenneth J. Giewont , Jessie C. Rosenberg
Abstract: 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.
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公开(公告)号：US10969544B1
公开(公告)日：2021-04-06
申请号：US16682354
申请日：2019-11-13
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Shuren Hu , Bo Peng , David Riggs , Karen Nummy , Kevin K. Dezfulian , Francis Afzal
Abstract: 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.
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