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公开(公告)号：US10564355B2
公开(公告)日：2020-02-18
申请号：US16184333
申请日：2018-11-08
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junichi Hasegawa
Abstract: A disclosed optical waveguide element includes a cladding portion formed on a substrate; an optical waveguide which is formed inside the cladding portion and has a refractive index higher than that of the cladding portion; an optical filter which is inserted into a slit formed in the cladding portion to divide the optical waveguide into a first optical waveguide and a second optical waveguide; and a first thin film element which is inserted into the slit along with the optical filter and is provided with a first thin film lens, wherein the first thin film lens provided in the first thin film element converges light that has propagated through the first optical waveguide and outputs into the slit into the second optical waveguide.
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公开(公告)号：US20200003954A1
公开(公告)日：2020-01-02
申请号：US16568762
申请日：2019-09-12
Applicant: Elenion Technologies, LLC
Inventor： Yang Liu , Yangjin Ma , Michael J. Hochberg
Abstract: An integrated polarization splitter and rotator (PSR) employs the TE0 and TE1 modes of propagating light, rather than the TE0 and TM0 modes used in conventional prior art PSR. The integrated PSR exhibits appreciably flatter wavelength response because it does not require a directional coupler to de-multiplex incoming polarizations. The PSR allows tuning of the TM0 loss to reduce polarization dependent loss (PDL). This integrated polarization splitter and rotator is applicable to all integrated platforms including Silicon-on-Insulator (SOI) and III-V semiconductor compound systems. The PSR may be very compact (12×2 μm2), and provides low loss (
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公开(公告)号：US20190393681A1
公开(公告)日：2019-12-26
申请号：US16561635
申请日：2019-09-05
Applicant: Aurrion, Inc.
Inventor： Gregory Alan Fish , Erik Johan Norberg , John M. Garcia , Robert Silvio Guzzon , Daniel Knight Sparacin
Abstract: Embodiments of the invention describe polarization insensitive optical devices utilizing polarization sensitive components. Light comprising at least one polarization state is received, and embodiments of the invention select a first optical path for light comprising a first polarization state or a second optical path for light comprising a second polarization state orthogonal to the first polarization state. The optical paths include components to at least amplify and/or modulate light comprising the first polarization state; the second optical path includes a polarization rotator to rotate light comprising the second polarization state to the first polarization state. Embodiments of the invention further describe optical devices including a polarization mode converter to convert light comprising a first and a second polarization state to light comprising different spatial modes of the first polarization state; light comprising the different spatial modes of the first polarization state is subsequently amplified and modulated.
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公开(公告)号：US10476602B2
公开(公告)日：2019-11-12
申请号：US16229083
申请日：2018-12-21
Applicant: Sumitomo Electric Industries, Ltd.
Inventor： Masaru Takechi
Abstract: An optical circuit that monolithically integrates a splitter, two optical 90° hybrids, and first to fourth waveguides on a unique substrate is disclosed. The splitter splits a local beam into first and second local beams each provided to the hybrids through the third and fourth waveguides, while, the signal beam including first and second signal beams each provided to the hybrids through the first and second waveguides without intersecting with the third and fourth waveguides. The hybrids extract in-phase components and quadrature phase components of the first and second signal beams with respect to the first and second local beams, respectively. The phase statuses of the quadrature components against the in-phase components are same in the two hybrids.
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公开(公告)号：US10468854B1
公开(公告)日：2019-11-05
申请号：US15498833
申请日：2017-04-27
Applicant: Aurrion, Inc.
Inventor： Gregory Alan Fish , Erik Johan Norberg , John M. Garcia , Robert Silvio Guzzon , Daniel Knight Sparacin
Abstract: Embodiments of the invention describe polarization insensitive optical devices utilizing polarization sensitive components. Light comprising at least one polarization state is received, and embodiments of the invention select a first optical path for light comprising a first polarization state or a second optical path for light comprising a second polarization state orthogonal to the first polarization state. The optical paths include components to at least amplify and/or modulate light comprising the first polarization state; the second optical path includes a polarization rotator to rotate light comprising the second polarization state to the first polarization state. Embodiments of the invention further describe optical devices including a polarization mode converter to convert light comprising a first and a second polarization state to light comprising different spatial modes of the first polarization state; light comprising the different spatial modes of the first polarization state is subsequently amplified and modulated.
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Patent Agency Ranking
公开(公告)号：US10466416B2
公开(公告)日：2019-11-05
申请号：US15785116
申请日：2017-10-16
Inventor： Robert Magnusson , Mehrdad Shokooh-Saremi
IPC: G02B6/126 , G02B5/08 , G02B5/18 , G02B5/20 , G02B5/28 , G02B5/30 , G02B6/124 , G02B6/14 , G02B6/12
Abstract: Multilevel leaky-mode optical elements, including reflectors, polarizers, and beamsplitters. Some of the elements have a plurality of spatially modulated periodic layers coupled to a substrate. For infrared applications, the optical elements may have a bandwidth larger than 600 nanometers.
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公开(公告)号：US20190302362A1
公开(公告)日：2019-10-03
申请号：US16373551
申请日：2019-04-02
Inventor： Seo Young LEE , Young-Tak HAN
Abstract: Provided is an optical circuit element, and more particularly, is an optical circuit element that splits one optical signal into two polarization signals, or couples two polarization signals into one optical signal. The optical circuit element includes a plurality of input couplers to which an optical signal is input, a plurality of output couplers from which an optical signal is output, a first path and a second path configured to connect the input couplers and the second couplers to each other, and at least one wave plate.
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公开(公告)号：US10429597B2
公开(公告)日：2019-10-01
申请号：US16114775
申请日：2018-08-28
Applicant: CORNING OPTICAL COMMUNICATIONS LLC
Inventor： Eric Stephan ten Have , Andrey Kobyakov
Abstract: Interposer assemblies and arrangements for coupling at least one optical fiber to at least one optoelectronic device are disclosed. Interposer assemblies comprise an interposer including at least one optical waveguide comprising a first end and a second end, and a substrate comprising the at least one optoelectronic device, at least one optical receiving/emitting element and at least one optical channel. The interposer and the substrate are in optical communication so that light coupled out of the at least one optical waveguide is coupled in the at least one optical receiving/emitting element and/or light coupled out of the at least one optical receiving/emitting element is coupled in the at least one optical waveguide of the interposer.
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公开(公告)号：US20190271897A1
公开(公告)日：2019-09-05
申请号：US16410926
申请日：2019-05-13
Applicant: TDK Corporation
Inventor： Shinji IWATSUKA , Kenji SASAKI , Satoshi SHIRAI
Abstract: Disclosed herein is an optical waveguide element that includes a substrate and a waveguide layer formed on the substrate and comprising lithium niobate. The waveguide layer has a slab part having a predetermined thickness and a ridge part protruding from the slab part. The maximum thickness of the slab part is 0.05 times or more and less than 0.4 times a wavelength of a light propagating in the ridge part.
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公开(公告)号：US20190171029A1
公开(公告)日：2019-06-06
申请号：US15975268
申请日：2018-05-09
Applicant: Google LLC
Inventor： Ryohei Urata , Lieven Verslegers , Hong Liu , Daoyi Wang
Abstract: A photonic integrated circulator can be fabricated by including a plurality of polarizing beam splitters and optical polarization rotators such that two copies of the optical signal are output at a receiver in substantially aligned polarization states. The circulator can be used for facilitating bi-directional communications between photonic integrated circuit devices, which are inherently polarization sensitive, while reducing signal loss.
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