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1. 发明授权

US11598848B2 Optical pulse clipper for lidar 有权
公开(公告)号：US11598848B2
公开(公告)日：2023-03-07
申请号：US16563336
申请日：2019-09-06
申请人： Dominic John Goodwill , Patrick Dumais
发明人： Dominic John Goodwill , Patrick Dumais
IPC分类号： G02F1/295 , G02F1/025 , G01S7/484 , G01S7/10 , G01S7/481 , H01S3/00 , G01S17/10 , G02F1/015
摘要： Aspects of the disclosure provide a system and method used for time-of-flight lidar applications. Such systems and methods include a laser and pulse clipper which produces a shuttering effect to reduce the instantaneous output power from the pulse clipper. Accordingly the output from the pulse clipper is more suitable for time-of-flight lidar applications than that initially produced by the laser. This can allow for lasers which may otherwise exceed eye safety limits to be used for time-of-flight lidar applications without exceeding the eye safety limits.

2. 发明申请

US20170293086A1 SWITCH MATRIX INCORPORATING POLARIZATION CONTROLLER 有权
公开(公告)号：US20170293086A1
公开(公告)日：2017-10-12
申请号：US15095746
申请日：2016-04-11
申请人： Chunshu Zhang , Dominic John Goodwill
发明人： Chunshu Zhang , Dominic John Goodwill
IPC分类号： G02B6/35 , G02F1/01 , G02B6/293
CPC分类号： G02B6/3594 , G02B6/2935 , G02B6/3546 , G02B6/355 , G02F1/011 , H04Q11/0005
摘要： Optical inputs to photonic switches may incorporate a polarization controller in order to change the polarization of the input signal to a pre-determined polarization for operation with the silicon photonics. A last stage of components of the polarization controller may overlap with a first input switching stage. A polarization controller that overlaps with the first stage of the switch input may provide lower insertion loss and power consumption for the photonic switch.

3. 发明授权

US09784921B1 Switch matrix incorporating polarization controller 有权
公开(公告)号：US09784921B1
公开(公告)日：2017-10-10
申请号：US15095746
申请日：2016-04-11
申请人： Chunshu Zhang , Dominic John Goodwill
发明人： Chunshu Zhang , Dominic John Goodwill
IPC分类号： G02F1/01 , G02B6/35 , G02B6/293
CPC分类号： G02B6/3594 , G02B6/2935 , G02B6/3546 , G02B6/355 , G02F1/011 , H04Q11/0005
摘要： Optical inputs to photonic switches may incorporate a polarization controller in order to change the polarization of the input signal to a pre-determined polarization for operation with the silicon photonics. A last stage of components of the polarization controller may overlap with a first input switching stage. A polarization controller that overlaps with the first stage of the switch input may provide lower insertion loss and power consumption for the photonic switch.

4. 发明申请

US20080181607A1 TECHNIQUE FOR PHOTONIC SWITCHING 失效
标题翻译：光电开关技术
公开(公告)号：US20080181607A1
公开(公告)日：2008-07-31
申请号：US12060616
申请日：2008-04-01
申请人： Dominic John Goodwill , Mirjana Vukovic
发明人： Dominic John Goodwill , Mirjana Vukovic
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04B10/801 , H04J14/02 , H04Q2011/0016 , H04Q2011/0037
摘要： A technique for photonic switching is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for photonic switching. The method may comprise receiving at least one optical signal at a photonic line card, wherein the at least one optical signal comprises one or more wavelength channels and the photonic line card comprises at least one integrated optical switch. The method may also comprise routing at least one of the one or more wavelength channels through the at least one integrated optical switch to a photonic bus, wherein the photonic bus comprises a plurality of optical paths and each of the plurality of optical paths is capable of carrying multiple wavelength channels.
摘要翻译：公开了一种用于光子切换的技术。在一个特定的示例性实施例中，该技术可以被实现为用于光子切换的方法。该方法可以包括在光子线卡处接收至少一个光信号，其中所述至少一个光信号包括一个或多个波长信道，并且光子线卡包括至少一个集成光开关。该方法还可以包括将一个或多个波长信道中的至少一个通过至少一个集成光开关路由到光子总线，其中光子总线包括多个光路，并且多个光路中的每一个能够携带多个波长信道。

5. 发明授权

US10509165B2 Optical transposer assembly 有权
公开(公告)号：US10509165B2
公开(公告)日：2019-12-17
申请号：US15957492
申请日：2018-04-19
申请人： Dritan Celo , Dominic John Goodwill , Eric Bernier
发明人： Dritan Celo , Dominic John Goodwill , Eric Bernier
IPC分类号： G02B6/12 , G02B6/30 , G02B6/122 , H01S5/50
摘要： An assembly with optical gain assisted optical transposer is provided. The optical transposer which optically couples a fibre array unit and a photonic integrated circuit. The optical transposer includes one or more optical gain elements which are configured to provide optical compensation, for example optical gain to mitigate optical losses associated with multistage photonic integrated devices. According to some embodiments, the optical gain element is a semiconductor optical amplifier (SOA). According to some embodiments the photonic integrated circuit is a SiPh PIC.

6. 发明授权

US10353267B2 Carrier-effect based optical switch 有权
公开(公告)号：US10353267B2
公开(公告)日：2019-07-16
申请号：US15395570
申请日：2016-12-30
申请人： Dritan Celo , Dominic John Goodwill
发明人： Dritan Celo , Dominic John Goodwill
IPC分类号： G02F1/225 , G02F1/313 , G02F1/025 , G02F1/01
摘要： A carrier-effect based optical switch, a method of operating the carrier-effect based switch, and a controller module for controlling a carrier-effect based optical switch are provided. The carrier-effect based optical switch comprises input and output optical couplers, first and second optical waveguide arms each connecting the input optical coupler to the output optical coupler, a first junction diode proximate to the first optical waveguide arm for providing a first optical phase delay thereto due to at least a carrier-based effect, and a first resistive heater proximate to the second optical waveguide arm for providing a second optical phase delay thereto due to a thermo-optic effect. The method comprises applying a first electrical power to the first junction diode for providing a first optical phase delay thereto due to at least a carrier-based effect, and applying a second electrical power to the first resistive heater for providing a second optical phase delay thereto due to at least a carrier-based effect. The controller module comprises code which, when executed on a computing device, causes the controller module to perform the method.

7. 发明授权

US10114173B2 Optical device 有权
公开(公告)号：US10114173B2
公开(公告)日：2018-10-30
申请号：US15458363
申请日：2017-03-14
申请人： Chunshu Zhang , Dominic John Goodwill
发明人： Chunshu Zhang , Dominic John Goodwill
IPC分类号： G02B6/12 , G02B6/293 , G02B6/122
摘要： An aspect of the disclosure provides a microring resonator (MRR). Such an MRR includes a ring optical waveguide and an optical waveguide, with the optical waveguide configured such that a first portion of the optical waveguide overlaps a second portion of the ring waveguide. In some embodiments, the optical waveguide has a first refractive index and the ring optical waveguide has a second refractive index such that the first refractive index is less than the second refractive index. In some embodiments, the optical waveguide is a polymer optical waveguide and the ring optical waveguide is a silicon optical waveguide. In some embodiments, the optical waveguide is larger in height than the ring waveguide and the first portion of the optical waveguide is configured to provide space for the second portion of the ring waveguide.

8. 发明申请

US20180188632A1 CARRIER-EFFECT BASED OPTICAL SWITCH 审中-公开
公开(公告)号：US20180188632A1
公开(公告)日：2018-07-05
申请号：US15395570
申请日：2016-12-30
申请人： Dritan Celo , Dominic John Goodwill
发明人： Dritan Celo , Dominic John Goodwill
IPC分类号： G02F1/313 , G02F1/01
CPC分类号： G02F1/3136 , G02F1/0147 , G02F1/025 , G02F1/225 , G02F1/2257 , G02F1/3133 , G02F2202/10 , G02F2203/21 , G02F2203/50
摘要： A carrier-effect based optical switch, a method of operating the carrier-effect based switch, and a controller module for controlling a carrier-effect based optical switch are provided. The carrier-effect based optical switch comprises input and output optical couplers, first and second optical waveguide arms each connecting the input optical coupler to the output optical coupler, a first junction diode proximate to the first optical waveguide arm for providing a first optical phase delay thereto due to at least a carrier-based effect, and a first resistive heater proximate to the second optical waveguide arm for providing a second optical phase delay thereto due to a thermo-optic effect. The method comprises applying a first electrical power to the first junction diode for providing a first optical phase delay thereto due to at least a carrier-based effect, and applying a second electrical power to the first resistive heater for providing a second optical phase delay thereto due to at least a carrier-based effect. The controller module comprises code which, when executed on a computing device, causes the controller module to perform the method.

9. 发明申请

US20170285373A1 Automatic Endless Polarization Controller For A Silicon-On-Insulator Platform 审中-公开
公开(公告)号：US20170285373A1
公开(公告)日：2017-10-05
申请号：US15087449
申请日：2016-03-31
申请人： Chunshu Zhang , Jia Jiang , Dominic John Goodwill , Patrick Dumais
发明人： Chunshu Zhang , Jia Jiang , Dominic John Goodwill , Patrick Dumais
IPC分类号： G02F1/01 , G02B6/293 , G02B6/27 , G02F1/225
CPC分类号： G02F1/0136 , G02B6/2773 , G02B6/29302 , G02B6/29344 , G02F1/0121 , G02F1/2257 , G02F2001/0142 , G02F2001/212
摘要： A photonic platform based polarization controller providing a fixed target polarization is disclosed. The polarization controller has a polarization rotator splitter splitting the beam into first and second feeds corresponding to first and second orthogonal polarization components. A first Mach-Zehnder interferometer (MZI) stage provides a first phase delay between the first and second feeds based on a first control signal, and a first mixer mixes the first and second feeds to provide third and fourth feeds. A second MZI stage provides a second phase delay between the third and fourth feeds based on a second control signal, and a second mixer mixes the third and fourth feeds to provide fifth and sixth feeds. A third MZI stage provides a third phase delay between the fifth and sixth feeds based on a third control signal, and a third mixer mixes the fifth and sixth feeds to provide the fixed target polarization. An optical tap splits a portion of the beam.

10. 发明授权

US07574080B2 Technique for photonic switching 失效
标题翻译：光子切换技术
公开(公告)号：US07574080B2
公开(公告)日：2009-08-11
申请号：US12060616
申请日：2008-04-01
申请人： Dominic John Goodwill , Mirjana Vukovic
发明人： Dominic John Goodwill , Mirjana Vukovic
IPC分类号： G02B6/28 , G02B6/26 , H04J14/00
CPC分类号： H04Q11/0005 , H04B10/801 , H04J14/02 , H04Q2011/0016 , H04Q2011/0037
摘要： A technique for photonic switching is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for photonic switching. The method may comprise receiving at least one optical signal at a photonic line card, wherein the at least one optical signal comprises one or more wavelength channels and the photonic line card comprises at least one integrated optical switch. The method may also comprise routing at least one of the one or more wavelength channels through the at least one integrated optical switch to a photonic bus, wherein the photonic bus comprises a plurality of optical paths and each of the plurality of optical paths is capable of carrying multiple wavelength channels.
摘要翻译：公开了一种用于光子切换的技术。在一个特定的示例性实施例中，该技术可以被实现为用于光子切换的方法。该方法可以包括在光子线卡处接收至少一个光信号，其中所述至少一个光信号包括一个或多个波长信道，并且光子线卡包括至少一个集成光开关。该方法还可以包括将一个或多个波长信道中的至少一个通过至少一个集成光开关路由到光子总线，其中光子总线包括多个光路，并且多个光路中的每一个能够携带多个波长信道。

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