Patents Assigned to Lumentum Operations LLC
  • Patent number: 11121770
    Abstract: High power, high speed VCSEL arrays are employed in unique configurations of arrays and sub-arrays. Placement of a VCSEL array behind a lens allows spatial separation and directivity. Diffusion may be employed to increase alignment tolerance. Intensity modulation may be performed by operating groups of VCSEL emitters at maximum bias. Optical communications networks with high bandwidth may employ angular, spatial, and/or wavelength multiplexing. A variety of network topologies and bandwidths suitable for the data center may be implemented. Eye safe networks may employ VCSEL emitters may be paired with optical elements to reduce optical power density to eye safe levels.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 14, 2021
    Assignee: Lumentum Operations LLC
    Inventors: John R. Joseph, Kevin L. Lear, David Abell
  • Patent number: 11114809
    Abstract: A monitoring device may receive sensor information, associated with an optical device included in a high-power fiber laser, from a set of sensors associated with the optical device. The monitoring device may determine, based on the sensor information, a set of operational properties of the optical device. The set of operational properties may include: a health property that describes a health of one or more components of the optical device, a degradation property that describes degradation of one or more components of the optical device, an environmental property that describes an environment of the optical device, or a process property associated with a process in which the optical device is being used. The monitoring device may identify whether an operational property, of the set of operational properties, satisfies a condition, and may selectively perform a monitoring action based on whether the operational property satisfies the condition.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: September 7, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Xiang Peng, I-Ning Hu, Michael Mielke, Boris Kharlamov
  • Patent number: 11114816
    Abstract: A structured light system may include a semiconductor laser to emit light and a diffractive optical element to diffract the light such that one or more diffracted orders of the light, associated with forming a structured light pattern, are transmitted by the diffractive optical element. The diffractive optical element may be arranged such that the light is to be incident on the diffractive optical element at a substantially non-normal angle of incidence. The substantially non-normal angle of incidence may be designed to cause the diffractive optical element to transmit a zero-order beam of the light outside of a field of view associated with the diffractive optical element.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 7, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Vincent V. Wong, Yonghong Guo, Jay A. Skidmore
  • Patent number: 11105997
    Abstract: An optical fiber holding device may comprise a first track and a second track. The first track may be configured to hold and guide a first optical fiber from a first track input location to a first track output location, wherein the first track is configured to allow the first optical fiber to connect to a first optical component and a first optical communication point. The second track may be configured to hold and guide a second optical fiber from a second track input location to a second track output location, wherein the second track is configured to allow the second optical fiber to connect to a second optical component and a second optical communication point.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: August 31, 2021
    Assignee: Lumentum Operations LLC
    Inventor: Patrick Wallace
  • Patent number: 11095365
    Abstract: A wide-angle illuminator module including a rigid support structure having a plurality of angled faces, a flexible circuit including one or more VCSEL arrays, each VCSEL array positioned over a face among the plurality of angled faces, each VCSEL array including a plurality of integrated microlenses with one microlens positioned over each VCSEL in the VCSEL array, and a driver circuit for providing electrical pulses to each VCSEL array, wherein the plurality of VCSEL arrays address illumination zones in a combined field of illumination. The support structure may also be a heatsink. The flexible circuit may be a single flexible circuit configured to be placed over the support structure or a plurality of flexible circuits, each including one VCSEL array.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: August 17, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Preethi Dacha, David Podva, Mial E. Warren
  • Patent number: 11088508
    Abstract: In some implementations, a vertical cavity surface emitting laser (VCSEL) includes a substrate layer and epitaxial layers on the substrate layer. The epitaxial layers may include an active layer, a first mirror, a second mirror, and one or more oxidation layers. The active layer may be between the first mirror and the second mirror, and the one or more oxidation layers may be proximate to the active layer. The one or more oxidation layers may be configured to control beam divergence of a laser beam emitted by the VCSEL based on at least one of: a quantity of the one or more oxidation layers, a shape of the one or more oxidation layers, a thickness of the one or more oxidation layers, or a proximity of the one or more oxidation layers to the active layer.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: August 10, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Albert Yuen, Ajit Vijay Barve, Guowei Zhao, Eric R. Hegblom
  • Patent number: 11079551
    Abstract: An optical device may include a monolithic beam steering engine. The device may include a twin M×N wavelength selective switch (WSS) including a first M×N WSS and a second M×N WSS. The first M×N WSS may include a first panel section of the monolithic beam steering engine to perform first beam steering of first beams, wherein the first beam steering is add/drop port beam steering; and a second panel section of the monolithic beam steering engine to perform second beam steering of second beams, wherein the second beam steering is common port beam steering. The first M×N WSS may include a first optical element aligned to the monolithic beam steering engine to direct one of the first beams or the second beams relative to the other of the first beams or the second beams, such that the first beams are directed in a different direction from the second beams.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 3, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Peter David Roorda, Paul Colbourne, Sheldon McLaughlin
  • Patent number: 11075695
    Abstract: High power, high speed VCSEL arrays are employed in unique configurations of arrays and sub-arrays. Placement of a VCSEL array behind a lens allows spatial separation and directivity. Diffusion may be employed to increase alignment tolerance. Intensity modulation may be performed by operating groups of VCSEL emitters at maximum bias. Optical communications networks with high bandwidth may employ angular, spatial, and/or wavelength multiplexing. A variety of network topologies and bandwidths suitable for the data center may be implemented. Eye safe networks may employ VCSEL emitters may be paired with optical elements to reduce optical power density to eye safe levels.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 27, 2021
    Assignee: Lumentum Operations LLC
    Inventors: John R. Joseph, Kevin L. Lear, David Abell
  • Patent number: 11056803
    Abstract: An optical device may include an optic disposed in an optical path. The optical device may include a mount to dispose the optic in the optical path. The optical device may include a plurality of spring clamps to attach the optic to the mount. The spring clamp, of the plurality of spring clamps, may include a body, a spring, and a screw. The screw may be to attach to the mount and to compress the spring. The spring may be to dispose a leading edge of the body against the optic. The spring clamp may be to maintain the optic in the optical path for a thermal cycle of at least between approximately ?50° C. and approximately 130° C.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 6, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Yong Yin, Bryed Billerbeck, Felix Brunner, Yves Netzer
  • Patent number: 11048042
    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.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 29, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Shibnath Pathak, Konstantin Petrovich Petrov, Brian Daniel, Hossein Hodaei, Michael C. Larson, Amit Mizrahi
  • Patent number: 11040514
    Abstract: A component assembly includes a first component, such as an optical component, and a second component, such as a support component, having different coefficients of thermal expansion (CTEs). The component assembly also includes a spacer having a CTE matched to that of the first component, disposed between the first component and the second component. When the CTE of the first component is greater than that of the second component, the second component includes a protrusion, and the spacer includes a complementary opening for receiving the protrusion, such that a joint between the protrusion and the complementary opening is under compressive stress. The spacer also includes a mounting area for receiving the first component, and an air gap disposed between the first component and the protrusion.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: June 22, 2021
    Assignee: Lumentum Operations LLC
    Inventor: Abdul Jaleel K. Moidu
  • Patent number: 11038320
    Abstract: A semiconductor layer structure may include a substrate, a buffer layer formed on the substrate, and a set of epitaxial layers formed on the buffer layer. The buffer layer may have a thickness that is greater than 2 micrometers (?m). The set of epitaxial layers may include a quantum well layer. A quantum well intermixing region may be formed in association with the quantum well layer and a material diffused from a region of a surface of the semiconductor layer structure.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: June 15, 2021
    Assignee: Lumentum Operations LLC
    Inventor: Li Fan
  • Patent number: 11029467
    Abstract: A method may include performing an active alignment to enable optical coupling between a first optical fiber and a second optical fiber via an imaging structure. An end of the first optical fiber may be at a first location on a first surface of the imaging structure. The first location may be a first transverse offset distance from an axis of the imaging structure. An end of the second optical fiber may be at a second location of the first surface of the imaging structure. The second location may be a second transverse offset distance from the axis of the imaging structure. The method may include fusion splicing the end of the first optical fiber at the first location on the first surface of the imaging structure, and fusion splicing the end of the second optical fiber at the second location on the first surface of the imaging structure.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: June 8, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Martin H. Muendel, Richard D. Faulhaber, James Lefort, James J. Morehead, Vincent Petit, Simonette Pierrot, Kyle R. Schneider
  • Patent number: 11022724
    Abstract: Systems, methods, and devices disclosed herein relate to optical assemblies for spatial multiplexing, multi-zone illumination, and optical assemblies. In embodiments, light source arrays are aligned with one or more micro-lens assemblies to generate a specific field of illumination. In embodiments, surface-emitting light sources may be light-emitting diodes and/or surface-emitting lasers. The micro-lens array may be aligned with the light source arrays, on-axis or off-axis to a principal axis of corresponding lenses such that the light sources may be expanded to a desired divergence and field of illumination. In embodiments, multiple light sources may be combined to increase power output for a specific area of the field of illumination, and light sources may be driven independently depending on intended illumination.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: June 1, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Richard F. Carson, Preethi Dacha, Mial E. Warren
  • Patent number: 11016227
    Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 25, 2021
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Stephen Bagnald
  • Patent number: 10992109
    Abstract: A device includes a substrate, a first vertical cavity surface emitting laser (VCSEL) array on the substrate, a second VCSEL array on the substrate and adjacent to the first VCSEL array, and an isolation structure between the first VCSEL array and the second VCSEL array. The isolation structure provides electrical isolation between the first VCSEL array and the second VCSEL array.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 27, 2021
    Assignee: Lumentum Operations LLC
    Inventor: Albert Yuen
  • Patent number: 10962726
    Abstract: A fiber attachment structure may comprise a monolithic platform structure having a first trench and a second trench to segment the monolithic platform structure into a chip mount area, a first island, and a second island. A laser chip may be mounted directly on the chip mount area and an optical fiber may be mounted on the first island by a first adhesive joint and on the second island by a second adhesive joint. For example, in some implementations, the first adhesive joint may include a first quantity of adhesive material attaching the optical fiber to the first island at a position at which a tip of the optical fiber is aligned with an output facet of the laser chip, and the second adhesive joint may include a second quantity of the adhesive material to mechanically secure the optical fiber to the second island.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 30, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Frank Wu, Prasad Yalamanchili, Raman Srinivasan, Huijie Xu
  • Patent number: 10962727
    Abstract: An optical fiber heat exchanger includes an outer body and an inner body inserted into the outer body. The inner body includes a plurality of guide walls to guide a cooling liquid through the optical fiber heat exchanger to exchange heat from an optical fiber inserted in the optical fiber heat exchanger, a first set of parallel straight channels, extending along an inlet portion of the inner body, formed by a first subset of the plurality of guide walls, a set of U-shaped channels, extending through a transition section of the inner body, formed by a second subset of the plurality of guide walls, and a second set of parallel straight channels, extending along an outlet portion of the inner body, formed by a third subset of the plurality of guide walls.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: March 30, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Yiduo Zhang, Gilberto Madrid, Titus Whitehead, Martin H. Muendel
  • Patent number: 10955628
    Abstract: An optical transceiver may include a housing including a surface cutout. The surface cutout may be for receiving a locking tang from a cage and for being disengaged by a slide from an unlocking tool wherein the surface cutout is disposed on the housing at a position such that the surface cutout is entirely within the cage with respect to an electromagnetic interference (EMI) gasket of the cage when the optical transceiver is inserted into the cage.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 23, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Georges Turcotte, Adonios Bitzanis
  • Patent number: 10944242
    Abstract: A VCSEL/VECSEL array design is disclosed that results in arrays that can be directly soldered to a PCB using conventional surface-mount assembly and soldering techniques for mass production. The completed VCSEL array does not need a separate package and no precision sub-mount and flip-chip bonding processes are required. The design allows for on-wafer probing of the completed arrays prior to singulation of the die from the wafer. Embodiments relate to semiconductor devices, and more particularly to multibeam arrays of semiconductor lasers for high power and high frequency applications and methods of making and using the same.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: March 9, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Richard F. Carson, Nein-Yi Li, Mial E. Warren