Patents by Inventor Bryan Park
Bryan Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240096631Abstract: The present disclosure relates to a bridging asymmetric haloalkynyl dicobalt hexacarbonyl precursors, and ultra high purity versions thereof, methods of making, and methods of using these bridging asymmetric haloalkynyl dicobalt hexacarbonyl precursors in a vapor deposition process. One aspect of the disclosure relates to an ultrahigh purity bridging asymmetric haloalkynyl dicobalt hexacarbonyl precursor of the formula Co2(CO)6(R3C?CR4), where R3 and R4 are different organic moieties and R4 is more electronegative or more electron withdrawing compared to R3.Type: ApplicationFiled: September 28, 2023Publication date: March 21, 2024Inventors: Sangbum Han, Seobong Chang, Bryan C. Hendrix, Jaeeon Park, Thomas H. Baum
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Publication number: 20230282527Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.Type: ApplicationFiled: May 12, 2023Publication date: September 7, 2023Inventors: Shiyun LIN, Daniel MAHGEREFTEH, Bryan PARK, Jin-Hyoung LEE
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Patent number: 11688652Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.Type: GrantFiled: March 4, 2022Date of Patent: June 27, 2023Assignee: II-VI DELAWARE, INC.Inventors: Shiyun Lin, Daniel Mahgerefteh, Bryan Park, Jin-Hyoung Lee
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Publication number: 20220189831Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.Type: ApplicationFiled: March 4, 2022Publication date: June 16, 2022Inventors: Shiyun Lin, Daniel Mahgerefteh, Bryan Park, Jin-Hyoung Lee
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Patent number: 11295994Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.Type: GrantFiled: July 19, 2019Date of Patent: April 5, 2022Assignee: II-VI DELAWARE, INC.Inventors: Shiyun Lin, Daniel Mahgerefteh, Bryan Park, Jin-Hyoung Lee
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Patent number: 11119275Abstract: Various polarization rotator splitter (PRS) configurations are disclosed. In an example embodiment, a system includes a PRS that includes a silicon nitride (SiN) rib waveguide core that includes a rib and a ridge that extends vertically above the rib, the SiN rib waveguide core having a total height hSiN from a bottom of the rib to a top of the ridge, a rib height hrib from the bottom of the rib to a top of the rib, a rib width wrib, and a top width wSiN of the ridge. The rib width wrib varies along at least a portion of a length of the SiN rib waveguide core.Type: GrantFiled: November 26, 2019Date of Patent: September 14, 2021Assignee: II-VI DELAWARE, INC.Inventors: Bryan Park, Zheng Yong, Joyce Kai See Poon
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Patent number: 10911154Abstract: A directional coupler may include a first waveguide and a second waveguide. The first waveguide may include an optical input port to receive an optical signal and a first output port. The second waveguide may include a terminated port and a second output port. The first and second optical waveguides may be configured to split the optical signal such that a first portion of the optical signal is directed to the first output port and a second portion of the optical signal is directed to the second output port. The first portion of the optical signal may include first substantially equal portions of a transverse magnetic (TM) polarization mode and a transverse electric (TE) polarization mode of the optical signal. The second portion of the optical signal may include second substantially equal portions of the TM polarization mode and the TE polarization mode of the optical signal.Type: GrantFiled: April 3, 2019Date of Patent: February 2, 2021Assignee: II-VI Delaware, Inc.Inventors: Faraz Monifi, Bryan Park
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Patent number: 10797801Abstract: An optical receiver with improved dynamic range may include at least one directional coupler having at least one input configured to couple to an optical fiber. The optical receiver may include a first signal path including a first photodetector coupled to an output of the at least one directional coupler, a first transimpedance amplifier (TIA) including an input coupled to the first photodetector, and an adder coupled to an output of the first TIA. The optical receiver may include a second signal path including a second photodetector coupled to an output of the at least one directional coupler, a second TIA including an input coupled to the second photodetector, and the adder coupled to an output of the second TIA. Further, the optical receiver may include an optical power sensing circuit coupled to at least one of the first TIA, the second TIA, and the adder.Type: GrantFiled: October 11, 2018Date of Patent: October 6, 2020Assignee: II-VI Delaware Inc.Inventors: Gilles P. Denoyer, Dennis Pu, Homero Guimaraes, Faraz Monifi, Bryan Park, Daniel Mahgerefteh
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Patent number: 10768366Abstract: A system may include a polarization rotator combiner. The polarization rotator combiner may include a first stage, a second stage, and a third stage. The first stage may receive a first component of light with a TE00 polarization and a second component of light with the TE00 polarization. The first stage may draw optical paths of the first and second components together. The second stage may receive the first component and the second component from the first stage. The second stage may convert the polarization of the second component from the TE00 polarization to a TE01 polarization. The third stage may receive the first component and the second component from the second stage. The third stage may convert polarization of the second component from the TE01 polarization to a TM00 polarization. The third stage may output the first component and output the second component.Type: GrantFiled: September 3, 2019Date of Patent: September 8, 2020Assignee: II-VI DELAWARE, INC.Inventors: Bryan Park, Daniel Mahgerefteh, Zheng Yong, Joyce Kai See Poon
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Patent number: 10656333Abstract: In an example, a photonic system includes a Si PIC with a Si substrate, a SiO2 box formed on the Si substrate, a first layer, and a second layer. The first layer is formed above the SiO2 box and includes a SiN waveguide with a coupler portion at a first end and a tapered end opposite the first end. The second layer is formed above the SiO2 box and vertically displaced above or below the first layer. The second layer includes a Si waveguide with a tapered end aligned in two orthogonal directions with the coupler portion of the SiN waveguide such that the tapered end of the Si waveguide overlaps in the two orthogonal directions and is parallel to the coupler portion of the SiN waveguide. The tapered end of the SiN waveguide is configured to be adiabatically coupled to a coupler portion of an interposer waveguide.Type: GrantFiled: April 16, 2019Date of Patent: May 19, 2020Assignee: II-VI Delaware Inc.Inventors: Daniel Mahgerefteh, Bryan Park, Jianxiao Chen, Xiaojie Xu, Gilles P. Denoyer, Bernd Huebner
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Publication number: 20200096700Abstract: Various polarization rotator splitter (PRS) configurations are disclosed. In an example embodiment, a system includes a PRS that includes a silicon nitride (SiN) rib waveguide core that includes a rib and a ridge that extends vertically above the rib, the SiN rib waveguide core having a total height hSiN from a bottom of the rib to a top of the ridge, a rib height hrib from the bottom of the rib to a top of the rib, a rib width wrib, and a top width wSiN of the ridge. The rib width wrib varies along at least a portion of a length of the SiN rib waveguide core.Type: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Inventors: Bryan Park, Zheng Yong, Joyce Kai See Poon
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Patent number: 10571630Abstract: An optical system includes a silicon (Si) substrate, a buried oxide (BOX) layer formed on the substrate, a silicon nitride (SiN) layer formed above the BOX layer, and a SiN waveguide formed in the SiN layer. In some embodiments, the optical system may additionally include an interposer waveguide adiabatically coupled to the SiN waveguide to form a SiN-interposer adiabatic coupler that includes at least the tapered section of the SiN waveguide, the optical system further including at least one of: a cavity formed in the Si substrate at least beneath the SiN-interposer adiabatic coupler or an oxide overlay formed between a top of a SiN core of the SiN waveguide and a bottom of the interposer waveguide. Alternatively or additionally, the optical system may additionally include a multimode Si—SiN adiabatic coupler that includes a SiN taper of a SiN waveguide and a Si taper of a Si waveguide.Type: GrantFiled: November 19, 2018Date of Patent: February 25, 2020Assignee: Finisar CorporationInventors: Daniel Mahgerefteh, Bryan Park
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Publication number: 20200027798Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.Type: ApplicationFiled: July 19, 2019Publication date: January 23, 2020Applicant: FINISAR CORPORATIONInventors: Shiyun LIN, Daniel MAHGEREFTEH, Bryan PARK, Jin-Hyoung LEE
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Publication number: 20200003953Abstract: A system may include a polarization rotator combiner. The polarization rotator combiner may include a first stage, a second stage, and a third stage. The first stage may receive a first component of light with a TE00 polarization and a second component of light with the TE00 polarization. The first stage may draw optical paths of the first and second components together. The second stage may receive the first component and the second component from the first stage. The second stage may convert the polarization of the second component from the TE00 polarization to a TE01 polarization. The third stage may receive the first component and the second component from the second stage. The third stage may convert polarization of the second component from the TE01 polarization to a TM00 polarization. The third stage may output the first component and output the second component.Type: ApplicationFiled: September 3, 2019Publication date: January 2, 2020Inventors: Bryan Park, Daniel Mahgerefteh, Zheng Yong, Joyce Kai See Poon
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Patent number: 10488590Abstract: Various polarization rotator splitter (PRS) configurations are disclosed. In an example embodiment, a system includes a PRS that includes a silicon nitride (SiN) rib waveguide core that includes a rib and a ridge that extends vertically above the rib, the SiN rib waveguide core having a total height hSiN from a bottom of the rib to a top of the ridge, a rib height hrib from the bottom of the rib to a top of the rib, a rib width wrib, and a top width wSiN of the ridge. The rib width wrib varies along at least a portion of a length of the SiN rib waveguide core.Type: GrantFiled: November 29, 2017Date of Patent: November 26, 2019Assignee: Finisar CorporationInventors: Bryan Park, Zheng Yong, Joyce Kai See Poon
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Patent number: 10401566Abstract: A system may include a polarization rotator combiner. The polarization rotator combiner may include a first stage, a second stage, and a third stage. The first stage may receive a first component of light with a TE00 polarization and a second component of light with the TE00 polarization. The first stage may draw optical paths of the first and second components together. The second stage may receive the first component and the second component from the first stage. The second stage may convert the polarization of the second component from the TE00 polarization to a TE01 polarization. The third stage may receive the first component and the second component from the second stage. The third stage may convert polarization of the second component from the TE01 polarization to a TM00 polarization. The third stage may output the first component and output the second component.Type: GrantFiled: November 29, 2017Date of Patent: September 3, 2019Assignee: Finisar CorporationInventors: Bryan Park, Daniel Mahgerefteh, Zheng Yong, Joyce Kai See Poon
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Publication number: 20190243066Abstract: In an example, a photonic system includes a Si PIC with a Si substrate, a SiO2 box formed on the Si substrate, a first layer, and a second layer. The first layer is formed above the SiO2 box and includes a SiN waveguide with a coupler portion at a first end and a tapered end opposite the first end. The second layer is formed above the SiO2 box and vertically displaced above or below the first layer. The second layer includes a Si waveguide with a tapered end aligned in two orthogonal directions with the coupler portion of the SiN waveguide such that the tapered end of the Si waveguide overlaps in the two orthogonal directions and is parallel to the coupler portion of the SiN waveguide. The tapered end of the SiN waveguide is configured to be adiabatically coupled to a coupler portion of an interposer waveguide.Type: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Inventors: Daniel Mahgerefteh, Bryan Park, Jianxiao Chen, Xiaojie Xu, Gilles P. Denoyer, Bernd Huebner
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Publication number: 20190229813Abstract: A directional coupler may include a first waveguide and a second waveguide. The first waveguide may include an optical input port to receive an optical signal and a first output port. The second waveguide may include a terminated port and a second output port. The first and second optical waveguides may be configured to split the optical signal such that a first portion of the optical signal is directed to the first output port and a second portion of the optical signal is directed to the second output port. The first portion of the optical signal may include first substantially equal portions of a transverse magnetic (TM) polarization mode and a transverse electric (TE) polarization mode of the optical signal. The second portion of the optical signal may include second substantially equal portions of the TM polarization mode and the TE polarization mode of the optical signal.Type: ApplicationFiled: April 3, 2019Publication date: July 25, 2019Inventors: Faraz Monifi, Bryan Park
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Patent number: 10302866Abstract: Various embodiments relate to polarization splitters. A polarization splitter may include a silicon nitride (SiN) waveguide core configured to receive an input light signal having a first polarization mode and a second polarization mode. The polarization splitter may further include a silicon (Si) slot waveguide core disposed proximate the SiN waveguide core. The Si slot waveguide core may include a tapered portion at a first end configured to couple the first polarization mode to the Si slot waveguide.Type: GrantFiled: April 25, 2018Date of Patent: May 28, 2019Assignee: Finisar CorporationInventors: Shiyun Lin, Bryan Park
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Publication number: 20190129096Abstract: An optical system includes a silicon (Si) substrate, a buried oxide (BOX) layer formed on the substrate, a silicon nitride (SiN) layer formed above the BOX layer, and a SiN waveguide formed in the SiN layer. In some embodiments, the optical system may additionally include an interposer waveguide adiabatically coupled to the SiN waveguide to form a SiN-interposer adiabatic coupler that includes at least the tapered section of the SiN waveguide, the optical system further including at least one of: a cavity formed in the Si substrate at least beneath the SiN-interposer adiabatic coupler or an oxide overlay formed between a top of a SiN core of the SiN waveguide and a bottom of the interposer waveguide. Alternatively or additionally, the optical system may additionally include a multimode Si—SiN adiabatic coupler that includes a SiN taper of a SiN waveguide and a Si taper of a Si waveguide.Type: ApplicationFiled: November 19, 2018Publication date: May 2, 2019Inventors: Daniel Mahgerefteh, Bryan Park