公开(公告)号：US10429676B2

公开(公告)日：2019-10-01

申请号：US15745712

申请日：2015-07-23

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Mir Ashkan Seyedi ,  Chin-Hui Chen

IPC: G02F1/01 ,  G02F1/025 ,  G02B6/287

Abstract: In one example, a device includes a bus waveguide to carry a light of a carrier wavelength, a first ring waveguide with a first modulator, a first heater to adjust a resonance wavelength of the first ring waveguide, and a second ring waveguide with a second modulator. The first ring waveguide and the second ring waveguide are coupled to the bus waveguide and are to modulate the light of the carrier wavelength to impart one of at least four optical power levels to the light. In another example, a device includes, a bus waveguide, a first ring waveguide with a first modulator, and a second ring waveguide with a second modulator. The first ring waveguide and the second ring waveguide are coupled to the bus waveguide and are to modulate a light of a carrier wavelength to impart one of at least four optical power levels to the light.

公开(公告)号：US10429601B1

公开(公告)日：2019-10-01

申请号：US15953765

申请日：2018-04-16

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Mir Ashkan Seyedi ,  Marco Fiorentino ,  Geza Kurczveil ,  Raymond G. Beausoleil

IPC: G02B6/43 ,  H01S3/131 ,  H01S3/23 ,  H01S3/13 ,  G02B6/42

Abstract: A photonic integrated circuit package includes two arrays or sets of integrated comb laser modules that are bonded to a silicon interposer. Each comb laser of an array has a common or overlapping spectral range, with each laser in the array being optically coupled to a local optical bus. The effective spectral range of the lasers in each array are different, or distinct, as to each array. An optical coupler is disposed within the silicon interposer and is optically coupled to each of the local optical buses. An ASIC (application specific integrated circuit) is bonded to the silicon interposer and provides control and operation of the comb laser modules.

公开(公告)号：US10365433B2

公开(公告)日：2019-07-30

申请号：US15756573

申请日：2015-09-04

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Mir Ashkan Seyedi ,  Chin-Hui Chen

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/293 ,  G02F1/015 ,  G02F1/025

Abstract: An apparatus includes an optical rib waveguide on a substrate, the optical rib waveguide further includes: a slab layer of silicon, a shallow rib of silicon in height that tapers laterally along a taper region, a deep rib of silicon that meets the shallow rib along the taper region of the shallow rib, and wherein the deep rib and the shallow rib have a same width, and wherein the shallow rib has a greater height than the deep rib, a core of silicon that tapers laterally in a range of 50-90% and extends on top of the deep rib and the shallow rib, and a cladding layer of silicon oxide that covers the slab, core, deep rib, and shallow rib.

公开(公告)号：US11722237B2

公开(公告)日：2023-08-08

申请号：US17495789

申请日：2021-10-06

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Mir Ashkan Seyedi

IPC: H04J14/02 ,  H04B10/50 ,  H04B10/60 ,  H04B10/25 ,  G02B6/293 ,  G02B6/12

CPC classification number: H04J14/0227 ,  H04B10/25 ,  H04B10/50 ,  H04B10/60 ,  G02B6/12007 ,  G02B6/2938 ,  G02B6/29338 ,  G02B6/29395

Abstract: Systems, methods, and computer-readable media are described for performing link training to enable optical pass-through (OPT) capabilities of a network node. OPT capabilities may refer to on-chip wavelength routing for a multi-wavelength data input, whereby an intermediate node detects wavelengths that are intended for OPT and transparently passes the wavelengths through to downstream nodes. When executed at an intermediate network node, an OPT link training algorithm can result in the creation of one or more wavelength routing maps that associate wavelengths received on particular inputs to the node with particular outputs of the node. An intermediate node may generate a respective wavelength routing map for each transmit node from which it receives input data. The wavelength routing maps may together implement OPT capabilities at the intermediate node as each wavelength routing map may indicate the manner in which wavelengths are passed through the intermediate node for a given transmit node.

公开(公告)号：US11619784B2

公开(公告)日：2023-04-04

申请号：US17443989

申请日：2021-07-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mir Ashkan Seyedi

IPC: G02B6/293 ,  G02B6/122

Abstract: Examples described herein relate to an optical device having a photonic-crystal lattice structure. In some examples, the optical device may include a substrate having a photonic-crystal lattice structure. The optical device may further include an optical waveguide formed in the photonic-crystal lattice structure and a defect cavity formed in the photonic-crystal lattice structure and optically coupled to the optical waveguide. Furthermore, the optical device may include a refractive index tuning structure adjacent to the defect cavity in the photonic-crystal lattice structure.

公开(公告)号：US20230033730A1

公开(公告)日：2023-02-02

申请号：US17443989

申请日：2021-07-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mir Ashkan Seyedi

IPC: G02B6/293

Abstract: Examples described herein relate to an optical device having a photonic-crystal lattice structure. In some examples, the optical device may include a substrate having a photonic-crystal lattice structure. The optical device may further include an optical waveguide formed in the photonic-crystal lattice structure and a defect cavity formed in the photonic-crystal lattice structure and optically coupled to the optical waveguide. Furthermore, the optical device may include a refractive index tuning structure adjacent to the defect cavity in the photonic-crystal lattice structure.

公开(公告)号：US11552707B2

公开(公告)日：2023-01-10

申请号：US17302681

申请日：2021-05-10

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mir Ashkan Seyedi ,  Terrel Morris

IPC: H04J14/00 ,  H04B10/275 ,  H04B10/40

Abstract: An optical transceiver module includes an optical transceiver and a controller. The optical transceiver has a ring filter configured to transmit optical signals from or receive optical signals for the optical transceiver module. The controller is configured to: detect a carrier frequency at the optical transceiver; detect a data signal frequency of data at the optical transceiver; determine a bit error rate of the data; and in response to determining that the bit error rate of the data is greater than a threshold, periodically vary a central wavelength of the ring filter at a frequency at least three orders slower than the data signal frequency.

公开(公告)号：US20220138371A1

公开(公告)日：2022-05-05

申请号：US17084600

申请日：2020-10-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Jinsung Youn ,  Xiaoge Zeng ,  Mir Ashkan Seyedi

IPC: G06F30/20 ,  G06F16/901

Abstract: A method for simulating a photodetector behavior includes: receiving an input waveform for an photodetector; receiving an input optical power and a reverse bias voltage for the photodetector; searching for, in a lookup-table library, model parameters for a photodetector behavior model based on the input optical power and the reverse bias voltage; and outputting a second waveform from the photodetector behavior model, where the second waveform is indicative of an electrical response of the photodetector receiving the input waveform.

公开(公告)号：US11323787B1

公开(公告)日：2022-05-03

申请号：US17086044

申请日：2020-10-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Kevin B. Leigh ,  Luca Ramini ,  Mir Ashkan Seyedi ,  Steven Dean ,  Marco Fiorentino

IPC: H04J14/00 ,  H04Q11/00 ,  G02B6/43

Abstract: A photonic node includes a first circuit disposed on a first substrate and a second circuit disposed on a second substrate different from the first substrate. The first circuit is configured to route light signals originated from the photonic node to local nodes of a local group in which the photonic node is a member. The second circuit is configured to route light signals received from a node of an external group in which the photonic node is not a member, to one of the local nodes.

公开(公告)号：US20220069829A1

公开(公告)日：2022-03-03

申请号：US17006490

申请日：2020-08-28

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mir Ashkan Seyedi ,  Thomas Van Vaerenbergh ,  Antoine Descos

IPC: H03L7/093 ,  H03L7/099 ,  H03K17/78 ,  H03K17/95 ,  G11C11/42 ,  G11C15/04 ,  G02B6/12

Abstract: One embodiment provides an optical encoder. The optical encoder includes an optical comb source to generate a multi-wavelength optical signal; a number of optical filters sequentially coupled to the optical comb source, with a respective optical filter being tunable to pass or block a particular wavelength of the multi-wavelength optical signal based on a corresponding bit value of a multi-bit search word; and a common output for the optical filters to output the filtered multi-wavelength optical signal, which encodes the multi-bit search word and can be used as an optical search signal for searching an optical content-addressable memory (CAM).