公开(公告)号：US20210344166A1

公开(公告)日：2021-11-04

申请号：US17032787

申请日：2020-09-25

Applicant: Lumentum Operations LLC

Inventor： Shibnath PATHAK ,  Duanhua KONG ,  Michael C. LARSON ,  Amit MIZRAHI

IPC: H01S5/068 ,  H01S5/06 ,  H01S5/22

Abstract: In some implementations, a thermally-controlled photonic structure may include a suspended region that is suspended over a substrate; a plurality of bridge elements connected to the suspended region and configured to suspend the suspended region over the substrate, where a plurality of openings are defined between the plurality of bridge elements; and at least one heater element having a modulated width disposed on the suspended region. The at least one heater element having the modulated width may include at least one section of a greater width and at least one section of a lesser width. The at least one section of the greater width may be in alignment with an opening of the plurality of openings and the at least one section of the lesser width may be in alignment with a bridge element of the plurality of bridge elements.

公开(公告)号：US20210263387A1

公开(公告)日：2021-08-26

申请号：US16917113

申请日：2020-06-30

Applicant: Lumentum Operations LLC

Inventor： Amit MIZRAHI ,  Michael C. LARSON

IPC: G02F1/225 ,  G02B6/293

Abstract: A nested Mach-Zehnder device may comprise a parent pre-stage interferometer, a parent interferometer coupled to the parent pre-stage interferometer, a first child pre-stage interferometer, a first child interferometer coupled to the first child pre-stage interferometer, a second child pre-stage interferometer, a second child interferometer coupled to the second child pre-stage interferometer, wherein a phase of each interferometer is electrically adjustable. The nested Mach-Zehnder device may comprise one or more components to: determine a performance parameter associated with a constellation diagram generated by the nested Mach-Zehnder device; determine that the performance parameter does not satisfy a threshold, and cause a phase of at least one pre-stage interferometer, of the parent pre-stage interferometer, the first child pre-stage interferometer, or the second child pre-stage interferometer, to be electrically adjusted to cause the performance parameter to satisfy the threshold.

公开(公告)号：US20190146301A1

公开(公告)日：2019-05-16

申请号：US16058755

申请日：2018-08-08

Applicant: Lumentum Operations LLC

Inventor： Amit MIZRAHI

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F2001/212 ,  G02F2203/69 ,  H04B10/516

Abstract: A device may include a plurality of interferometers. The plurality of interferometers may include a parent interferometer, a first child interferometer coupled to a first branch of the parent interferometer, and a second child interferometer coupled to a second branch of the parent interferometer. At least one of the plurality of interferometers may be calibrated by maintaining collinearity of an output of the first branch and the second branch and using perturbation signals.

公开(公告)号：US20230135027A1

公开(公告)日：2023-05-04

申请号：US17646334

申请日：2021-12-29

Applicant: Lumentum Operations LLC

Inventor： Yiyin ZHOU ,  Amit MIZRAHI ,  Michael C. LARSON

IPC: H01S5/50 ,  H01S5/10

Abstract: In some implementations, a device may generate a data set including at least modal gain values and modal loss values for a semiconductor optical amplifier (SOA) slice. The device may determine, based on the data set, respective widths for a plurality of slices of an SOA using an autoregressive model. A width, of the respective widths, for a slice, of the plurality of slices, may be associated with a maximum conversion efficiency achievable for the slice at a given current density. The device may generate information indicating a geometry for the SOA based on the respective widths for the plurality of slices.

公开(公告)号：US20230073927A1

公开(公告)日：2023-03-09

申请号：US18054989

申请日：2022-11-14

Applicant: Lumentum Operations LLC

Inventor： Shibnath PATHAK ,  Duanhua KONG ,  Michael C. LARSON ,  Amit MIZRAHI

IPC: H01S5/024 ,  H01S5/068 ,  H01S5/22 ,  H01S5/06

Abstract: In some implementations, a thermally-controlled photonic structure may include a suspended region that is suspended over a substrate; a plurality of bridge elements connected to the suspended region and configured to suspend the suspended region over the substrate, where a plurality of openings are defined between the plurality of bridge elements; and at least one heater element having a modulated width disposed on the suspended region. The at least one heater element having the modulated width may include at least one section of a greater width and at least one section of a lesser width. The at least one section of the greater width may be in alignment with an opening of the plurality of openings and the at least one section of the lesser width may be in alignment with a bridge element of the plurality of bridge elements.

公开(公告)号：US20200310028A1

公开(公告)日：2020-10-01

申请号：US16730527

申请日：2019-12-30

Applicant: Lumentum Operations LLC

Inventor： Shibnath PATHAK ,  Konstantin Petrovich PETROV ,  Brian DANIEL ,  Hossein HODAEI ,  Michael C. LARSON ,  Amit MIZRAHI

IPC: G02B6/125 ,  G02B6/122 ,  G02B6/12

Abstract: A photonic integrated circuit may include a substrate and an optical waveguide integrated with the substrate. The optical waveguide may include a bend section, wherein a bend shape of the bend section is defined by a curvature function to suppress waveguide mode conversion.