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公开(公告)号:US10061139B2
公开(公告)日:2018-08-28
申请号:US14596790
申请日:2015-01-14
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Jingjing Li , Nate Quitoriano , David A. Fattal , Raymond G. Beausoleil
IPC: G02B27/42 , G02B5/18 , H01L27/146 , G02B15/14 , G02B25/00
CPC classification number: G02B27/4216 , G02B5/1809 , G02B5/1861 , G02B5/1895 , G02B15/14 , G02B25/001 , G02B27/4272 , H01L27/1462 , H01L27/14625 , H01L27/14629
Abstract: Various embodiments of the present invention are directed to optical devices comprising planar lenses. In one aspect, an optical device includes two or more planar lenses, and one or more dielectric layers. Each planar lens includes a non-periodic, sub-wavelength grating layer, and each dielectric layer is disposed adjacent to at least one planar lens to form a solid structure. The two or more planar lenses are substantially parallel and arranged to have a common optical axis so that light transmitted through the optical device substantially parallel to the optical axis is refracted by the two or more planar lenses.
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公开(公告)号:US20180097139A1
公开(公告)日:2018-04-05
申请号:US15560649
申请日:2015-04-30
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Cheng Li , Zhihong Huang , Marco Fiorentino , Raymond G. Beausoleil
IPC: H01L31/107 , H01L25/04 , H01L27/146 , H04B10/69
CPC classification number: H01L31/107 , H01L25/041 , H01L27/14634 , H01L27/14636 , H04B10/00 , H04B10/6911
Abstract: An example device in accordance with an aspect of the present disclosure includes an avalanche photodetector to enable carrier multiplication for increased responsivity, and a receiver based on source-synchronous CMOS and including adaptive equalization. The photodetector and receiver are monolithically integrated on a single chip.
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公开(公告)号:US12013568B2
公开(公告)日:2024-06-18
申请号:US17695673
申请日:2022-03-15
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Stanley Cheung , Yuan Yuan , Di Liang , Raymond G. Beausoleil
CPC classification number: G02B6/12004 , G02F1/025 , H01S5/026 , G02B2006/12061
Abstract: Implementations disclosed herein provide for improving phase tuning efficiency of optical devices, such as a hybrid metal-on-semiconductor capacitor (MOSCAP) III-V/Si micro-ring laser. The present disclosure integrates silicon devices into a waveguide structural of the optical devices disclosed herein, for example, a waveguide resistor heater, a waveguide PIN diode, and waveguide PN diode. In some examples, the optical devices is a MOSCAP formed by a dielectric layer between two semiconductor layers, which provides for small phase tuning via plasma dispersion and/or carrier dispersion effect will occur depending on bias polarity. The plasma dispersion and/or carrier dispersion effect is enhanced according to implementations disclosed herein by heat, carrier injection, and/or additional plasma dispersion based on the silicon devices disclosed integrated into the waveguide.
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公开(公告)号:US20230296831A1
公开(公告)日:2023-09-21
申请号:US17695673
申请日:2022-03-15
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Stanley Cheung , Yuan Yuan , Di Liang , Raymond G. Beausoleil
CPC classification number: G02B6/12004 , G02F1/025 , H01S5/026 , G02B2006/12061
Abstract: Implementations disclosed herein provide for improving phase tuning efficiency of optical devices, such as a hybrid metal-on-semiconductor capacitor (MOSCAP) III-V/Si micro-ring laser. The present disclosure integrates silicon devices into a waveguide structural of the optical devices disclosed herein, for example, a waveguide resistor heater, a waveguide PIN diode, and waveguide PN diode. In some examples, the optical devices is a MOSCAP formed by a dielectric layer between two semiconductor layers, which provides for small phase tuning via plasma dispersion and/or carrier dispersion effect will occur depending on bias polarity. The plasma dispersion and/or carrier dispersion effect is enhanced according to implementations disclosed herein by heat, carrier injection, and/or additional plasma dispersion based on the silicon devices disclosed integrated into the waveguide.
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公开(公告)号:US11487181B2
公开(公告)日:2022-11-01
申请号:US16946653
申请日:2020-06-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Sudharsanan Srinivasan , Di Liang , Geza Kurczveil , Raymond G. Beausoleil
Abstract: Examples herein relate to optical systems. In particular, implementations herein relate to an optical system including an optical transmitter configured to transmit optical signals. The optical transmitter includes a first optical source coupled to an input waveguide and configured to emit light having different wavelengths through the input waveguide. The optical transmitter includes a Mach-Zehnder interferometer that includes a first arm and a second arm. The MZI further includes a first optical coupler configured to couple the emitted light from the input waveguide to the first and second arms and an array of two or more second optical sources coupled to the first arm. Each of the two or more second optical sources are configured to be injection locked to a different respective wavelength of the emitted light transmitted from the first optical source. The MZI further includes a second optical coupler configured to combine the emitted light from the first and second arms after propagating therethrough.
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公开(公告)号:US20220021459A1
公开(公告)日:2022-01-20
申请号:US16947056
申请日:2020-07-16
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Geza Kurczveil , Di Liang , Sudharsanan Srinivasan , Raymond G. Beausoleil
IPC: H04B10/50
Abstract: Examples herein relate to optical systems. In particular, implementations herein relate to an optical system including an optical transmitter configured to transmit optical signals. The optical transmitter includes a first optical source and a second optical source coupled to the first optical source and injection seeded by the first optical source. The optical transmitter further includes an output coupler, the second optical source coupled to the optical coupler via an output waveguide and configured to emit light having multiple different wavelengths through the output waveguide. In some implementations, the second optical source is self-injection seeded.
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公开(公告)号:US11177631B2
公开(公告)日:2021-11-16
申请号:US15930955
申请日:2020-05-13
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Geza Kurczveil , Di Liang , Raymond G. Beausoleil
Abstract: Examples disclosed herein relate to multi-wavelength semiconductor comb lasers. In some examples disclosed herein, a multi-wavelength semiconductor comb laser may include a waveguide included in an upper silicon layer of a silicon-on-insulator (SOI) substrate. The comb laser may include a quantum dot (QD) active gain region above the SOI substrate defining an active section in a laser cavity of the comb laser and a dispersion tuning section included in the laser cavity to tune total cavity dispersion of the comb laser.
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公开(公告)号:US11075314B2
公开(公告)日:2021-07-27
申请号:US16890374
申请日:2020-06-02
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Zhihong Huang , Raymond G. Beausoleil
IPC: G02B6/12 , H01L31/107 , H01L31/18 , H01L31/109 , H01L31/0232 , H01L31/028 , H01L31/105
Abstract: An example device includes a doped absorption region to receive optical energy and generate free electrons from the received optical energy. The example device also includes a doped charge region to increase an electric field. The example device also includes an intrinsic multiplication region to generate additional free electrons from impact ionization of the generated free electrons. The example device includes a doped contact region to conduct the free electrons and the additional free electrons.
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公开(公告)号:US10989878B2
公开(公告)日:2021-04-27
申请号:US15929675
申请日:2020-05-15
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Raymond G. Beausoleil , Di Liang , Marco Fiorentino , Geza Kurczveil , Mir Ashkan Seyedi , Zhihong Huang
Abstract: An example system for multi-wavelength optical signal splitting is disclosed. The example disclosed herein comprises a first splitter, a second splitter, and a modulator. The system receives a multi-wavelength optical signal and an electrical signal, wherein the multi-wavelength optical signal comprises a plurality of optical wavelengths and has a power level. The first splitter is to split the plurality of optical wavelengths into a plurality of optical wavelength groups. The second splitter is to split the multi-wavelength optical signal or the plurality of optical wavelength groups into a plurality of lower power signal groups. The modulator is to encode the electrical signal into the plurality of optical wavelength groups, the plurality of lower power signal groups, or a combination thereof.
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公开(公告)号:US10897119B1
公开(公告)日:2021-01-19
申请号:US16570830
申请日:2019-09-13
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Geza Kurczveil , Di Liang , Zhihong Huang , Xiaoge Zeng , Raymond G. Beausoleil
IPC: H01S3/13 , H01S5/0687 , H01S5/068 , H01S5/026 , H01S5/02 , H01S5/10 , G01J1/04 , H01S5/0683 , H01S5/06 , H04J14/02 , H04B10/69 , H04B10/079 , G01K7/16 , G01J5/20 , G01J5/08 , H04B10/50 , H01S5/343
Abstract: Techniques and circuitry for a semiconductor laser with enhanced lasing wavelengths stabilization are described. A semiconductor laser can generate an optical signal (e.g., single or multi-wavelength), for use in a Dense Wavelength Division Multiplexing (DWDM) interconnect system. The stabilization circuitry can include temperature sensor circuitry that measures an operational temperature of the semiconductor laser, and a feedback controller that can determine a temperature-induced wavelength shift that may be experienced by the multi-wavelength optical signal based on the laser's temperature. The feedback controller is also configured to generate a compensation signal that is determined to cause a complimentary shift in the multi-wavelength optical signal, where the complimentary shift can compensate for the temperature-induced wavelength shift. An integrated MOS capacitor of the laser can be charged by the signal in a manner that effectuates the complimentary shift and tunes the multi-wavelength optical signal to compensate for temperature-induced shift, thereby enhancing stabilization.
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