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公开(公告)号：US11353656B1
公开(公告)日：2022-06-07
申请号：US17105193
申请日：2020-11-25
Applicant: SiLC Technologies, Inc.
Inventor： Shuren Hu , Mehdi Asghari
Abstract: An on-chip polarizer for polarization filtering is described herein. The polarizer includes a rib waveguide on a supporting substrate, wherein the rib waveguide and the substrate may respectively comprise different materials. The rib waveguide may include a strip positioned over a slab of the same material. The strip may include a curvature along an optical propagation direction. In some embodiments, the curvature may include two bends that together form an approximately mirrored S-shaped curvature. The waveguide curvature may be configured to selectively guide an optical mode associated with a first polarization state while filtering-out another optical mode associated with a second polarization state. In some embodiments, the polarizer may allow propagation of a near lossless transverse magnetic (TM) mode while selectively radiating away a lossy transverse electric (TE) mode.
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公开(公告)号：US20220120966A1
公开(公告)日：2022-04-21
申请号：US17076358
申请日：2020-10-21
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yangyang Liu , Tymon Barwicz
Abstract: Structures for managing light polarization on a photonics chip and methods of forming a structure for managing light polarization on a photonics chip. A single-mode waveguiding structure is formed that includes a first waveguide core region and a second waveguide core region positioned above the first waveguide core region. The second waveguide core region includes a first section, a second section connected to the first section, and a third section connected to the second section. The second section has a first width at an intersection with the first section and a second width at an intersection with the third section. The second width is greater than the first width. The first and second waveguide core regions contain materials of different composition.
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公开(公告)号：US11294120B2
公开(公告)日：2022-04-05
申请号：US16869425
申请日：2020-05-07
Applicant: Honeywell International Inc.
Inventor： Jeffrey Earl Lewis , Matthew Wade Puckett , Neil A. Krueger , Chellappan Narayanan
Abstract: In an example, an integrated optical circuit (IOC) includes a first substrate formed of a first material and a first waveguide formed of a second material and positioned on the first substrate. The first waveguide includes a plurality of branches and is configured to polarize light beams that propagate through the first waveguide. The IOC further includes a second substrate formed of a third material, the second substrate coupled to or positioned on the first substrate. The IOC further includes a plurality of straight waveguides formed in the second substrate, each of the plurality of straight waveguides optically coupled to a respective branch of the plurality of branches of the first waveguide. The IOC further includes a plurality of electrodes positioned proximate to the plurality of straight waveguides, the plurality of electrodes configured to modulate the phase of light beams that propagate through the plurality of straight waveguides.
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公开(公告)号：US11249253B2
公开(公告)日：2022-02-15
申请号：US16239811
申请日：2019-01-04
Applicant: Skorpios Technologies, Inc.
Inventor： John Dallesasse , Stephen B. Krasulick
IPC: G02B6/38 , G02B6/00 , G02B6/27 , G02B6/26 , G02B5/30 , G02B6/126 , G02B6/10 , G02F1/00 , G02F1/09 , G02B6/12
Abstract: Photonic rotators integrated on a substrate are disclosed for manipulating light polarization.
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公开(公告)号：US20210349262A1
公开(公告)日：2021-11-11
申请号：US16869425
申请日：2020-05-07
Applicant: Honeywell International Inc.
Inventor： Jeffrey Earl Lewis , Matthew Wade Puckett , Neil A. Krueger , Chellappan Narayanan
Abstract: In an example, an integrated optical circuit (IOC) includes a first substrate formed of a first material and a first waveguide formed of a second material and positioned on the first substrate. The first waveguide includes a plurality of branches and is configured to polarize light beams that propagate through the first waveguide. The IOC further includes a second substrate formed of a third material, the second substrate coupled to or positioned on the first substrate. The IOC further includes a plurality of straight waveguides formed in the second substrate, each of the plurality of straight waveguides optically coupled to a respective branch of the plurality of branches of the first waveguide. The IOC further includes a plurality of electrodes positioned proximate to the plurality of straight waveguides, the plurality of electrodes configured to modulate the phase of light beams that propagate through the plurality of straight waveguides.
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Patent Agency Ranking
公开(公告)号：US20210325603A1
公开(公告)日：2021-10-21
申请号：US16849355
申请日：2020-04-15
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Won Suk Lee
Abstract: Structures for a polarizer and methods of forming a structure for a polarizer. A polarizer includes a first waveguide core and a layer that is positioned adjacent to a side surface of the first waveguide core. The layer is composed of a first material having a permittivity with an imaginary part that ranges from 0 to about 15. A second waveguide core is positioned over the first waveguide core. The second waveguide core is composed of a second material that is different in composition from the first material.
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公开(公告)号：US11137543B2
公开(公告)日：2021-10-05
申请号：US16727400
申请日：2019-12-26
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A first waveguide core includes a section and a taper connected to the section. A second waveguide core is laterally positioned adjacent to the taper of the first waveguide core. An absorber is connected to the section of the first waveguide core. The absorber is composed of germanium.
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公开(公告)号：US11105978B2
公开(公告)日：2021-08-31
申请号：US16781324
申请日：2020-02-04
Applicant: GLOBALFOUNDRIES U.S. Inc.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A first waveguide core has a first tapered section, a second tapered section, and a section positioned along a longitudinal axis between the first tapered section and the second tapered section. The first tapered section and the second tapered section each narrow in a direction along the longitudinal axis toward the section. A second waveguide core has a first terminating end, a second terminating end, and a section that is arranged between the first and second terminating ends. The section of the second waveguide core is positioned either over or below the section of the first waveguide core.
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公开(公告)号：US20210215873A1
公开(公告)日：2021-07-15
申请号：US16741792
申请日：2020-01-14
Applicant: GLOBALFOUNDRIES U.S. INC.
Inventor： Yusheng Bian , Ajey Poovannummoottil Jacob
Abstract: Disclosed are embodiments of an on-chip polarizer and of methods of forming the polarizer. The polarizer includes first and second waveguides with different shapes at different design levels above a substrate. The first waveguide has a main body between an input end and an output end. The second waveguide is spiral in shape with an inner end and with an outer end that is evanescently coupled to the main body of the first waveguide. Light signals, including first light signals with a first type polarization and second light signals with a second type polarity, are received at the input end of the first waveguide. The first waveguide passes the first light signals to the output end and passes at least some second light signals out the main body and into the outer end of the second waveguide. The second waveguide attenuates the received second light signals.
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公开(公告)号：US10996394B2
公开(公告)日：2021-05-04
申请号：US16379660
申请日：2019-04-09
Applicant: FINISAR CORPORATION
Inventor： Daniel Mahgerefteh , Jared Mikkelsen
Abstract: An integrated optical component includes at least one input waveguide, at least one output waveguide; a first slab waveguide having a first refractive index, n1. The first slab waveguide may be disposed between at least one of the input waveguides and at least one of the output waveguides. The integrated optical component may further include a second slab waveguide having a second refractive index, n2. The integrated optical component may also include a third cladding slab having a third refractive index, n3. The third cladding slab may be disposed between the first slab and the second slab. The thickness of the second slab waveguide and the thickness of the third slab waveguide are adjustable to reduce a birefringence of the integrated optical component.
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