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1. 发明申请

US20210026066A1 EFFICIENT PHOTONIC CIRCUITS FOR LIQUID-COOLED HIGH-DENSITY DATACENTERS 有权
公开(公告)号：US20210026066A1
公开(公告)日：2021-01-28
申请号：US16518131
申请日：2019-07-22
申请人： International Business Machines Corporation
发明人： Tymon Barwicz , Douglas M. Gill , William M. Green , Jason S. Orcutt , Jessie C. Rosenberg , Eugen Schenfeld , Chi Xiong
IPC分类号： G02B6/12 , G02B6/30 , H05K7/20
摘要： Photonic circuits are disclosed having an efficient optical power distribution network. Laser chips (InP) having different wavelengths are flip-chip assembled near the center of a silicon photonic chip. Each InP die has multiple optical lanes, but a given die has only one wavelength. Waveguides formed in the photonic chip are optically connected to the lanes, and fan out to form multiple waveguide sets, where each waveguide set has one of the waveguides from each of the different wavelengths, i.e., one waveguide from each InP die. The waveguide network is optimized to minimize the number of crossings that any given waveguide may have, and no waveguide having a particular wavelength crosses another waveguide of the same wavelength. The unique arrangements of light sources and waveguides allows the use of a smaller number of more intense laser sources, particularly in applications such as performance-optimized datacenters where liquid cooling systems may be leveraged.

2. 发明申请

US20170248805A1 Efficient Thermo-Optic Phase Shifters Using Multi-Pass Heaters 有权
公开(公告)号：US20170248805A1
公开(公告)日：2017-08-31
申请号：US15596880
申请日：2017-05-16
申请人： International Business Machines Corporation
发明人： Douglas M. Gill , Chi Xiong
IPC分类号： G02F1/01 , G02B6/132 , G02B6/136
CPC分类号： G02F1/0147 , G02B6/132 , G02B6/136 , G02F1/011 , G02F1/025
摘要： Techniques for increasing efficiency of thermo-optic phase shifters using multi-pass heaters and thermal bridges are provided. In one aspect, a thermo-optic phase shifter device includes: a plurality of optical waveguides formed in an SOI layer over a buried insulator; at least one heating element adjacent to the optical waveguides; and thermal bridges connecting at least one of the optical waveguides directly to the heating element. A method for forming a thermo-optic phase shifter device is also provided.

3. 发明授权

US09720300B2 Dual-tap electro-optic modulator auto-bias control 有权
公开(公告)号：US09720300B2
公开(公告)日：2017-08-01
申请号：US14672814
申请日：2015-03-30
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Douglas M. Gill , Jonathan E. Proesel
IPC分类号： G02F1/225 , G02F1/21 , G02F1/035 , G02F1/01 , H04B10/54
CPC分类号： G02F1/225 , G02F1/0123 , G02F1/035 , G02F1/21 , G02F2001/212 , H04B10/541
摘要： A method and apparatus for controlling operation of an electro-optic modulator is disclosed. A first intensity of light is obtained at an input to the electro-optic modulator. A second intensity of light is obtained at an output of the electro-optic modulator. A difference between the obtained first intensity and the obtained second intensity is used to control a biasing of a modulator transfer function of the electro-optic modulator to control the electro-optic modulator.

4. 发明授权

US09684191B2 Efficient thermo-optic phase shifters using multi-pass heaters 有权
公开(公告)号：US09684191B2
公开(公告)日：2017-06-20
申请号：US14933409
申请日：2015-11-05
申请人： International Business Machines Corporation
发明人： Douglas M. Gill , Chi Xiong
IPC分类号： G02F1/01 , G02B6/132 , G02B6/136
CPC分类号： G02F1/0147 , G02B6/132 , G02B6/136 , G02F1/011 , G02F1/025
摘要： Techniques for increasing efficiency of thermo-optic phase shifters using multi-pass heaters and thermal bridges are provided. In one aspect, a thermo-optic phase shifter device includes: a plurality of optical waveguides formed in an SOI layer over a buried insulator; at least one heating element adjacent to the optical waveguides; and thermal bridges connecting at least one of the optical waveguides directly to the heating element. A method for forming a thermo-optic phase shifter device is also provided.

5. 发明授权

US08942519B2 Material structures for front-end of the line integration of optical polarization splitters and rotators 有权
标题翻译：光学偏振分离器和旋转器的线路集成前端的材料结构
公开(公告)号：US08942519B2
公开(公告)日：2015-01-27
申请号：US13971390
申请日：2013-08-20
申请人： International Business Machines Corporation
发明人： Tymon Barwicz , Douglas M. Gill , William M. Green , Marwan H. Khater , Yurii A. Vlasov
IPC分类号： G02B6/00 , G02B6/12 , G02B6/126
CPC分类号： G02B6/126
摘要： A polarization splitter and rotator of a wafer chip, an opto-electronic device and method of use is disclosed. The first waveguide of the wafer chip is configured to receive an optical signal from an optical device and propagate a transverse electric eigenstate of the received optical signal. The second waveguide is configured to receive a transverse magnetic eigenstate of the received optical signal from the first waveguide. The second waveguide includes a splitter end, a middle section and a rotator end, wherein the splitter end includes a layer of polycrystalline silicon, a layer of silicon oxide and a layer of silicon nitride, the rotated end includes a layer single crystal silicon, a layer silicon oxide and a layer of silicon nitride, and the middle section includes layers of single crystal silicon, silicon oxide polycrystalline silicon and silicon nitride.
摘要翻译：公开了一种晶片芯片的偏振分离器和旋转器，光电器件和使用方法。晶片芯片的第一波导被配置为从光学装置接收光信号并传播所接收的光信号的横向电本质状态。第二波导被配置为从第一波导接收接收的光信号的横向磁本征状态。第二波导包括分流器端部，中间部分和旋转器端部，其中分流器端部包括多晶硅层，氧化硅层和氮化硅层，旋转端包括层单晶硅，层状氧化硅和氮化硅层，中间部分包括单晶硅层，氧化硅多晶硅层和氮化硅层。

6. 发明授权

US08923665B2 Material structures for front-end of the line integration of optical polarization splitters and rotators 有权
标题翻译：光学偏振分离器和旋转器的线路集成前端的材料结构
公开(公告)号：US08923665B2
公开(公告)日：2014-12-30
申请号：US13835725
申请日：2013-03-15
申请人： International Business Machines Corporation
发明人： Tymon Barwicz , Douglas M. Gill , William M. Green , Marwan H. Khater , Yurii A. Vlasov
IPC分类号： G02B6/12 , G02B6/126
CPC分类号： G02B6/126
摘要： A polarization splitter and rotator of a wafer chip, an opto-electronic device and method of use is disclosed. The first waveguide of the wafer chip is configured to receive an optical signal from an optical device and propagate a transverse electric eigenstate of the received optical signal. The second waveguide is configured to receive a transverse magnetic eigenstate of the received optical signal from the first waveguide. The second waveguide includes a splitter end, a middle section and a rotator end, wherein the splitter end includes a layer of polycrystalline silicon, a layer of silicon oxide and a layer of silicon nitride, the rotated end includes a layer single crystal silicon, a layer silicon oxide and a layer of silicon nitride, and the middle section includes layers of single crystal silicon, silicon oxide polycrystalline silicon and silicon nitride.
摘要翻译：公开了一种晶片芯片的偏振分离器和旋转器，光电器件和使用方法。晶片芯片的第一波导被配置为从光学装置接收光信号并传播所接收的光信号的横向电本质状态。第二波导被配置为从第一波导接收接收的光信号的横向磁本征状态。第二波导包括分流器端部，中间部分和旋转器端部，其中分流器端部包括多晶硅层，氧化硅层和氮化硅层，旋转端包括层单晶硅，层状氧化硅和氮化硅层，中间部分包括单晶硅层，氧化硅多晶硅层和氮化硅层。

7. 发明申请

US20140270628A1 MATERIAL STRUCTURES FOR FRONT-END OF THE LINE INTEGRATION OF OPTICAL POLARIZATION SPLITTERS AND ROTATORS 有权
公开(公告)号：US20140270628A1
公开(公告)日：2014-09-18
申请号：US13835725
申请日：2013-03-15
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Tymon Barwicz , Douglas M. Gill , William M. Green , Marwan H. Khater , Yurii A. Vlasov
IPC分类号： G02B6/126
CPC分类号： G02B6/126
摘要： A polarization splitter and rotator of a wafer chip, an opto-electronic device and method of use is disclosed. The first waveguide of the wafer chip is configured to receive an optical signal from an optical device and propagate a transverse electric eigenstate of the received optical signal. The second waveguide is configured to receive a transverse magnetic eigenstate of the received optical signal from the first waveguide. The second waveguide includes a splitter end, a middle section and a rotator end, wherein the splitter end includes a layer of polycrystalline silicon, a layer of silicon oxide and a layer of silicon nitride, the rotated end includes a layer single crystal silicon, a layer silicon oxide and a layer of silicon nitride, and the middle section includes layers of single crystal silicon, silicon oxide polycrystalline silicon and silicon nitride.

8. 发明申请

US20150316796A1 DUAL-TAP ELECTRO-OPTIC MODULATOR AUTO-BIAS CONTROL 有权
公开(公告)号：US20150316796A1
公开(公告)日：2015-11-05
申请号：US14672814
申请日：2015-03-30
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Douglas M. Gill , Jonathan E. Proesel
IPC分类号： G02F1/035 , G02F1/225
CPC分类号： G02F1/225 , G02F1/0123 , G02F1/035 , G02F1/21 , G02F2001/212 , H04B10/541
摘要： A method and apparatus for controlling operation of an electro-optic modulator is disclosed. A first intensity of light is obtained at an input to the electro-optic modulator. A second intensity of light is obtained at an output of the electro-optic modulator. A difference between the obtained first intensity and the obtained second intensity is used to control a biasing of a modulator transfer function of the electro-optic modulator to control the electro-optic modulator.

9. 发明申请

US20210234085A1 SUPERCONDUCTING QUBIT CAPACITANCE AND FREQUENCY OF OPERATION TUNING 有权
公开(公告)号：US20210234085A1
公开(公告)日：2021-07-29
申请号：US16752146
申请日：2020-01-24
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Douglas M. Gill , Martin O. Sandberg , Vivekananda P. Adiga , Jason S. Orcutt , Jerry M. CHOW
IPC分类号： H01L39/02 , G06N10/00 , H01L39/22 , B82Y10/00
摘要： A method for adjusting a resonance frequency of a qubit in a quantum mechanical device includes providing a substrate having a frontside and a backside, the frontside having at least one qubit formed thereon, the at least one qubit comprising capacitor pads; and removing substrate material from the backside of the substrate at an area opposite the at least one qubit to alter a capacitance around the at least one qubit so as to adjust a resonance frequency of the at least one qubit.

10. 发明授权

US10197819B2 Efficient thermo-optic phase shifters using multi-pass heaters 有权
公开(公告)号：US10197819B2
公开(公告)日：2019-02-05
申请号：US15858099
申请日：2017-12-29
申请人： International Business Machines Corporation
发明人： Douglas M. Gill , Chi Xiong
IPC分类号： G02F1/035 , G02F1/01 , G02B6/132 , G02B6/136 , G02F1/025
摘要： Techniques for increasing efficiency of thermo-optic phase shifters using multi-pass heaters and thermal bridges are provided. In one aspect, a thermo-optic phase shifter device includes: a plurality of optical waveguides formed in an SOI layer over a buried insulator; at least one heating element adjacent to the optical waveguides; and thermal bridges connecting at least one of the optical waveguides directly to the heating element. A method for forming a thermo-optic phase shifter device is also provided.

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