公开(公告)号：US10585331B2

公开(公告)日：2020-03-10

申请号：US15919979

申请日：2018-03-13

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Wenlin Jin

IPC: G02F1/13 ,  G02F1/31 ,  H04Q11/00 ,  H04J14/02

Abstract: A liquid crystal on substrate (LCOS) assembly may include an LCOS carrier. The LCOS assembly may include at least one thick layer on the LCOS carrier and associated with a threshold thickness. The threshold thickness may be at least 5 micrometers. The LCOS assembly may include a switching engine on the at least one thick layer. The switching engine may include an LCOS die and an LCOS cover glass to enclose an LCOS liquid. The LCOS assembly may be associated with a thermal sensitivity of less than 0.5 millidegrees of curvature per degree Celsius for a particular temperature range.

公开(公告)号：US20190086762A1

公开(公告)日：2019-03-21

申请号：US15919979

申请日：2018-03-13

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Wenlin Jin

IPC: G02F1/31 ,  H04Q11/00

CPC classification number: G02F1/31 ,  G02F2203/05 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0016

Abstract: A liquid crystal on substrate (LCOS) assembly may include an LCOS carrier. The LCOS assembly may include at least one thick layer on the LCOS carrier and associated with a threshold thickness. The threshold thickness may be at least 5 micrometers. The LCOS assembly may include a switching engine on the at least one thick layer. The switching engine may include an LCOS die and an LCOS cover glass to enclose an LCOS liquid. The LCOS assembly may be associated with a thermal sensitivity of less than 0.5 millidegrees of curvature per degree Celsius for a particular temperature range.

公开(公告)号：US11686907B2

公开(公告)日：2023-06-27

申请号：US17812812

申请日：2022-07-15

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Thomas Haslam ,  Shane H. Woodside

IPC: G02B6/42 ,  H05K7/20 ,  B32B27/06

CPC classification number: G02B6/4269 ,  H05K7/20409 ,  B32B27/06 ,  H05K2201/066 ,  H05K2201/10121 ,  H05K2201/10962

Abstract: A pluggable optical module may include a substrate. The pluggable optical module may include a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink. The compressible sliding thermal interface material may be compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink. The compressible sliding thermal interface may protrude from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance.

公开(公告)号：US11726280B2

公开(公告)日：2023-08-15

申请号：US17357274

申请日：2021-06-24

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Nenad Duricic ,  Shane H. Woodside ,  Doug Cross ,  Andrew Telford

IPC: G02B6/42 ,  G02B7/02

CPC classification number: G02B6/4266 ,  G02B6/4206 ,  G02B6/4214 ,  G02B7/028

Abstract: An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.

公开(公告)号：US10684441B2

公开(公告)日：2020-06-16

申请号：US15717513

申请日：2017-09-27

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Doug Cross ,  Nenad Duricic ,  Martin Matthews

IPC: G06G7/48 ,  G02B7/00 ,  F28F27/00

Abstract: A method may include identifying, by a device, a set of components of an optical device. The method may include determining, by the device, a set of design criteria based on the set of components of the optical device. The method may include identifying, by the device, an initial heater configuration based on the set of design criteria. The method may include determining, by the device, a set of optimization parameters for determining a target heater configuration based on the set of design criteria. The method may include performing, by the device and based on the set of optimization parameters, an optimization procedure to alter the initial heater configuration to determine the target heater configuration. The method may include providing, by the device, information identifying the target heater configuration based on performing the optimization procedure.

公开(公告)号：US12155980B2

公开(公告)日：2024-11-26

申请号：US17651958

申请日：2022-02-22

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Nenad Duricic ,  Shane H. Woodside

IPC: H04Q11/00 ,  G01S7/481 ,  H05K7/20

Abstract: An optical device may include an outer box. The optical device may include an inner box within the outer box. The optical device may include a heating element on a surface of the inner box. The heating element may include one or more openings. The optical device may include one or more mounting pads. A mounting pad of the one or more mounting pads may be arranged in an opening of the one or more openings and mechanically couple the inner box to the outer box through the opening.

公开(公告)号：US11937403B2

公开(公告)日：2024-03-19

申请号：US16832869

申请日：2020-03-27

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Dean Flockton ,  Doug Cross

IPC: H05K7/20 ,  H01L23/367 ,  H01S3/04

CPC classification number: H05K7/2039 ,  H01L23/3675 ,  H01S3/0405

Abstract: A heatsink may include a base and a plurality of fins, configured to be disposed in an air flow, that extend orthogonally from the base. The plurality of fins may have at least one of a height, an inter-fin spacing, or a thickness that varies in a direction of the air flow.

公开(公告)号：US11728611B2

公开(公告)日：2023-08-15

申请号：US16712493

申请日：2019-12-12

Applicant: Lumentum Operations LLC

Inventor： Roozbeh Ahmadi ,  Nenad Duricic ,  Doug Cross

IPC: H01S3/04 ,  G01S7/481 ,  H01S3/02 ,  G02B7/18 ,  F25B29/00

CPC classification number: H01S3/0405 ,  F25B29/00 ,  G01S7/4813 ,  G02B7/1815 ,  H01S3/025

Abstract: An optical device may include an enclosure including an optical aperture and a plurality of optical components positioned within the enclosure, where the plurality of optical components are to emit and/or receive light through the optical aperture. The optical device may include at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components, where the at least one heating element or cooling element is thermally coupled with the enclosure.