公开(公告)号：US11886020B2

公开(公告)日：2024-01-30

申请号：US17305892

申请日：2021-07-16

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Yuan Yuan ,  Sudharsanan Srinivasan ,  Di Liang ,  Zhihong Huang

IPC: G02B6/42

CPC classification number: G02B6/4201

Abstract: Examples described herein relate to a ring resonator. The ring resonator may include an annular waveguide having a waveguide base and a waveguide core narrower than the waveguide base. Further, the ring resonator may include an outer contact region comprising a first-type doping and disposed annularly and at least partially surrounding an outer annular surface of the waveguide base. Furthermore, the ring resonator may include an inner contact region comprising a second-type doping and disposed annularly contacting an inner annular surface of the waveguide base. Moreover, the ring resonator may include an annular detector region disposed annularly at a distance from and covering at least a portion of a surface of the waveguide core and contacting the outer contact region.

公开(公告)号：US20210376933A1

公开(公告)日：2021-12-02

申请号：US16891008

申请日：2020-06-02

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Di Liang ,  Zhihong Huang

IPC: H04B10/61

Abstract: Systems and methods are provided for receiving an optical signal from an optical fiber, including: coupling via an optical coupler the optical signal from an optical fiber into first and second waveguides, wherein the optical signal comprises TE and TM polarized optical signals and the optical coupler couples the TE polarized optical signal into the first waveguide and the TM polarized optical signal into the second waveguide; equalizing the TE and TM polarized optical signals from the coupler to equalize optical power levels of the TE and TM polarized optical signals; optically combining the equalized TE and TM polarized optical signals; and transmitting the combined optical signal to a photodetector.

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.

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

IPC: G02B6/293 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/50 ,  G02B6/12

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.

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.

公开(公告)号：US20200243701A1

公开(公告)日：2020-07-30

申请号：US16260256

申请日：2019-01-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Geza Kurczveil ,  Di Liang ,  Bassem Tossoun ,  Chong Zhang ,  Xiaoge Zeng ,  Zhihong Huang ,  Raymond Beausoleil

IPC: H01L31/0352 ,  H01L31/0304 ,  H01L31/107 ,  H01L31/0232

Abstract: A quantum-dot based avalanche photodiode (QD-APD) may include a silicon substrate and a waveguide on which a quantum dot (QD) stack of layers is formed having a QD light absorption layer, a charge multiplication layer (CML), and spacer layers. The QD stack may be formed within a p-n junction. The waveguide may include a mode converter to facilitate optical coupling and light transfer from the waveguide to the QD light absorption layer. The QD absorption layer and the CML layer may be combined or separate layers. The CML may generate electrical current from the absorbed light with more than 100% quantum efficiency when the p-n junction is reverse-biased.

公开(公告)号：US10680131B2

公开(公告)日：2020-06-09

申请号：US15747760

申请日：2015-07-27

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.

公开(公告)号：US10481327B2

公开(公告)日：2019-11-19

申请号：US15109847

申请日：2014-01-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Di Liang ,  Zhihong Huang ,  Geza Kurczveil

IPC: G02B6/12 ,  G02B6/124 ,  G01J1/04 ,  G01J1/44 ,  G02B6/122

Abstract: One example includes a photodetector system. The system includes a waveguide photodetector into which an input optical signal comprising a frequency band of interest is provided and from which the input optical signal is absorbed to generate an output signal that is indicative of an intensity of the input optical signal. The system also includes a reflector coupled to the waveguide photodetector and which is to reject frequencies outside of the frequency band of interest and to reflect the frequency band of interest back into the waveguide photodetector.

公开(公告)号：US20190094466A1

公开(公告)日：2019-03-28

申请号：US15718306

申请日：2017-09-28

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Raymond G. Beausoleil ,  Di Liang ,  Marco Fiorentino ,  Geza Kurczveil ,  Mir Ashkan Seyedi ,  Zhihong Huang

IPC: G02B6/293 ,  G02B6/12 ,  H04B10/50 ,  H04J14/02 ,  H04Q11/00

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.

公开(公告)号：US10031354B2

公开(公告)日：2018-07-24

申请号：US15109863

申请日：2014-01-31

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sonny Vo ,  Zhihong Huang ,  Chin-Hui Chen ,  Jason Scott Pelc ,  Marco Fiorentino

IPC: G02F1/25 ,  G02F1/025 ,  G02B6/12 ,  G02B6/35

Abstract: An active-control optical resonator includes an oxide layer; a ring resonator arranged in a loop and positioned on the oxide layer; a tangential optical waveguide optically coupled to the ring resonator; a translatable body configured to selectively move into an evanescent field region of the ring resonator; a first electrode positioned on the translatable body, the first electrode comprising indium tin oxide; and a second electrode positioned between the oxide layer and the ring resonator.