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公开(公告)号：US20240272359A1
公开(公告)日：2024-08-15
申请号：US18109294
申请日：2023-02-14
发明人： Yusheng Bian , Roderick Alan Augur
CPC分类号： G02B6/125 , G02B6/1228 , G02B6/13 , G02B2006/12061 , G02B2006/12147 , G02B2006/1215
摘要： Structures for an optical power splitter and methods of forming a structure for an optical power splitter. The structure comprises a spiral waveguide core having an outer perimeter. The structure further comprises a plurality of waveguide cores. Each waveguide core has a section disposed adjacent to the outer perimeter of the spiral waveguide core.
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公开(公告)号：US20240184042A1
公开(公告)日：2024-06-06
申请号：US18073144
申请日：2022-12-01
发明人： Yusheng Bian
CPC分类号： G02B6/1228 , G02B6/124 , G02B6/13 , G02B2006/12061
摘要： Structures for an optical component, such as an optical reflector or an Echelle grating, and methods of forming such structures. The structure comprises a first waveguide core positioned in a vertical direction over a semiconductor substrate. The first waveguide core includes a tapered section and a plurality of segments separated by a plurality of gaps. A second waveguide core, which is positioned in the vertical direction relative to the first waveguide core, includes a portion positioned adjacent to the first waveguide core.
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公开(公告)号：US11977258B1
公开(公告)日：2024-05-07
申请号：US18148029
申请日：2022-12-29
CPC分类号： G02B6/122 , G02B6/13 , G02B6/02042 , G02B6/02333 , G02B2006/121
摘要： Disclosed are a structure with a substrate-embedded waveguide and a method of forming the structure. The waveguide includes cladding material lining a trench in a substrate, a core in the trench on the cladding material, and at least one cavity within the core. Each cavity extends from one end of the core toward the opposite end and contains a low refractive index material or is under vacuum so the waveguide is an arrow waveguide. An insulator layer is on the substrate and extends laterally over the waveguide and a semiconductor layer is on the insulator layer. Additionally, depending upon the embodiment, an additional waveguide can be aligned above the substrate-embedded waveguide either on the isolation region or on a waveguide extender that extends at least partially through the isolation region and the insulator layer to the waveguide.
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公开(公告)号：US20240126013A1
公开(公告)日：2024-04-18
申请号：US18046189
申请日：2022-10-13
发明人： Yusheng Bian , Won Suk Lee , Andreas D. Stricker
CPC分类号： G02B6/126 , G02B6/1228
摘要： A structure includes a polarization device such as a polarization splitter, a polarization combiner or a polarization splitter rotator including a waveguide having a light absorber at an end section with an at least hook shape, e.g., it can be hooked or spiral shape. The structure also includes another waveguide adjacent the stated waveguide. The hook or spiral shape acts as a light absorber that reduces undesired optical noise such as excessive light insertion loss and/or light scattering. The hook or spiral shape may also be used on supplemental waveguides used to further filter and/or refine an optical signal in one of the waveguides of the polarization device, e.g., downstream of an output section of the polarization splitter and/or rotator.
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公开(公告)号：US11947168B2
公开(公告)日：2024-04-02
申请号：US17658092
申请日：2022-04-05
发明人： Yusheng Bian
CPC分类号： G02B6/305 , G02B6/12004 , G02B6/1228 , G02B2006/12147 , G02B2006/12166
摘要： A stacked edge coupler for a photonic chip is provided. The stacked edge coupler includes an insulating layer, a waveguide core, a first assisting waveguide, and a back-end-of-line stack. The first assisting waveguide is on the insulating layer. The waveguide core is over the first assisting waveguide and includes a tapered section. The back-end-of-line stack is over the waveguide core. The back-end-of-line stack includes a side edge, a dielectric layer, and a second assisting waveguide. The second assisting waveguide is on the dielectric layer and arranged adjacent to the side edge. The second assisting waveguide has an overlapping arrangement with the tapered section of the waveguide core.
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公开(公告)号：US20240045156A1
公开(公告)日：2024-02-08
申请号：US17816790
申请日：2022-08-02
发明人： Yusheng Bian , Vibhor Jain , Steven M. Shank
IPC分类号： G02B6/42
CPC分类号： G02B6/4212 , G02B6/4215 , G02B6/4295 , G02B6/4274
摘要： A structure includes a dielectric waveguide, and at least one grating coupler adjacent the dielectric waveguide. Each grating coupler includes a set of parallel optofluidic grating channels oriented orthogonally to the dielectric waveguide. The structure may also include a radiation source operatively coupled to the dielectric waveguide, and an optical receiver such as a photosensor adjacent the grating coupler(s). The structure may be used as part of an optofluidic sensor system for, for example, biochemical applications.
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公开(公告)号：US11880066B2
公开(公告)日：2024-01-23
申请号：US17847399
申请日：2022-06-23
发明人： Kevin Dezfulian , Yusheng Bian
CPC分类号： G02B6/1228 , G02B6/1223 , G02B2006/12097
摘要： Structures including a waveguide core and methods of fabricating a structure including a waveguide core. The structure comprises a photonics chip including a first chip region, a second chip region, a first waveguide core in the first chip region, and a second waveguide core in the second chip region. The first chip region adjoins the second chip region along a boundary. The first waveguide core includes a first tapered section, and the second waveguide core includes a second tapered section positioned across the boundary from the first tapered section. The first tapered section has a first width dimension that increases with increasing distance from the boundary, and the second tapered section has a second width dimension that increases with increasing distance from the boundary.
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8.发明公开公开(公告)号：US20230417989A1
公开(公告)日：2023-12-28
申请号：US17808168
申请日：2022-06-22
发明人： Yusheng Bian
CPC分类号： G02B6/1228 , G02B6/126
摘要： Disclosed is a structure including a polarization device with first and second waveguides. The first waveguide includes a core (e.g., a silicon nitride (SiN) core) suitable for high-power applications. The second waveguide includes: a primary core (e.g., another SiN core), which is positioned laterally adjacent to the core of the first waveguide and suitable for high-power applications, and secondary core(s) stacked vertically with the primary core to steer the optical mode and ensure that mode matching occurs between adjacent first and second coupling sections of the first and second waveguides, respectively, in order to achieve high-power splitter and/or combiner functions. Optionally, the primary and secondary cores of the second waveguide can be tapered at least within the second coupling section to increase the likelihood of mode matching.
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公开(公告)号：US20230400633A1
公开(公告)日：2023-12-14
申请号：US17835513
申请日：2022-06-08
发明人： Yusheng Bian
CPC分类号： G02B6/1228 , G02B6/13 , G02B2006/12061
摘要： Structures including a waveguide core and methods of fabricating a structure including a waveguide core. The structure comprises a photonics chip including a first chip region, a first waveguide core in the first chip region, a second chip region, and a second waveguide core in the second chip region. The first chip region adjoins the second chip region along a boundary, the first waveguide core includes a first tapered section and the second waveguide core includes a second tapered section adjacent to the first tapered section. The first tapered section has a first longitudinal axis aligned substantially parallel to the boundary, and the second tapered section has a second longitudinal axis aligned substantially parallel to the boundary.
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公开(公告)号：US20230393341A1
公开(公告)日：2023-12-07
申请号：US17830432
申请日：2022-06-02
发明人： Yusheng Bian
CPC分类号： G02B6/305 , G02B6/136 , G02B6/1228 , G02B6/12004 , G02B2006/12147 , G02B2006/12061
摘要： Structures including a ring resonator and methods of fabricating a structure including a ring resonator. The structure comprises an optical component, a first ring resonator positioned adjacent to the optical component, and a second ring resonator spaced in a vertical direction from the first ring resonator. The first ring resonator and the second ring resonator have an overlapping relationship.
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