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公开(公告)号：US12061363B2
公开(公告)日：2024-08-13
申请号：US17458736
申请日：2021-08-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel F. Cronch , Sergio D. Carranza , Boon K. Lee , Michael A. Haase , Terry L. Smith
IPC: G02B6/38
CPC classification number: G02B6/3823 , G02B6/3885
Abstract: Each optical cable includes an array of at least one optical waveguide and at least one optical ferrule attached to the array of optical waveguides. The housing includes a first housing portion and a second housing portion engaged with the first housing portion. The second housing portion comprises at least one carrier and one frame. The carrier and frame of the second housing portion are configured to support the one or more optical cables. The first housing portion and the second housing portion are configured such that mechanical engagement of the first housing portion with the second housing portion moves the carrier relative to the frame. Movement of the carrier relative to the frame causes a bend in each optical waveguide and rotation of each ferrule. The bend provides a predetermined spring force of the optical waveguides at a predetermined angle of the ferrule.
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公开(公告)号：US12050349B2
公开(公告)日：2024-07-30
申请号：US18319693
申请日：2023-05-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Bing Hao
CPC classification number: G02B6/3885 , G02B6/3829 , G02B6/383 , G02B6/3839 , G02B6/3843 , G02B6/3845 , G02B6/3869 , G02B6/4214
Abstract: An optical ferrule comprises first and second compound stop features respectively disposed at opposing sides of the optical ferrule. Each compound stop feature has upper and lower contact surfaces. The lower contact surface is offset below the mating surface of the optical ferrule along a thickness axis perpendicular to the mating surface. The upper contact surface is offset above the mating surface along the thickness axis. The lower contact surface is offset forward from the upper stop surface along a mating direction of the optical ferrule. A connecting surface connects the upper contact surface and the lower contact surface.
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公开(公告)号：US20240142726A1
公开(公告)日：2024-05-02
申请号：US18279268
申请日：2022-03-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Xiaoguang Sun , Michael A. Haase
IPC: G02B6/42
CPC classification number: G02B6/4214 , G02B6/4228 , G02B6/4257
Abstract: An optical ferrule for transmitting and propagating light having a predetermined wavelength includes a polymeric ferrule body having a fiber alignment feature for receiving an optical fiber, a redirecting side for redirecting light, and an output side window for exiting light therethrough. A multilayer anti-reflection film is disposed on the output side window and includes at least two first layers including titanium oxide and at least two second layers including silicon dioxide. At least one of the two first layers is thinner than an optimum thickness that would minimize reflection at the predetermined wavelength. Heating the optical ferrule at a temperature of about 85 degrees centigrade for at least five hours results in no, or very little, damage to the multilayer anti-reflection film.
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公开(公告)号：US20240069289A1
公开(公告)日：2024-02-29
申请号：US18271892
申请日：2022-01-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase
CPC classification number: G02B6/3885 , G02B6/368 , G02B6/3881 , G02B6/403
Abstract: An optical cable subassembly includes a plurality of optical fibers; at least one light coupling unit with a coupling unit attachment area configured to receive and hold a free end of each optical fiber of the plurality of optical fibers at a coupling unit pitch; and a cable retainer adapted to be installed in a housing and having a retainer attachment area with a plurality of spaced-apart retainer fiber alignment features arranged at a retainer pitch, each of the plurality of optical fibers disposed in and attached to one of the plurality of retainer fiber alignment features.
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公开(公告)号：US20230161118A1
公开(公告)日：2023-05-25
申请号：US18099432
申请日：2023-01-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Terry L. Smith
CPC classification number: G02B6/406 , G02B6/3676 , G02B6/383 , G02B6/3885
Abstract: An optical ferrule includes an optical coupling member with a light redirecting element that redirects input light from a waveguide toward an output window. The optical coupling member has a mating surface configured to slidably mate with a mating optical coupling member along a longitudinal axis of the optical ferrule. The optical ferrule also includes at least one stacking member along a longitudinal edge of the optical coupling member. The stacking member has a distal end extending beyond one of the mating surface and a top surface opposed to the mating surface. The stacking member also has a contact surface opposed to the distal end. The contact surface is configured to rotatably interface with a corresponding distal end of a of an adjacently stacked optical ferrule.
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Patent Agency Ranking
公开(公告)号：US20230152531A1
公开(公告)日：2023-05-18
申请号：US18093484
申请日：2023-01-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Terry L. Smith
CPC classification number: G02B6/3839 , G02B6/3861 , G02B6/3885 , G02B6/3869 , G02B6/42
Abstract: A coupling unit includes a light coupling element comprising an attachment area for receiving and permanently attaching to a plurality of optical waveguides. One or more grooves are provided at the attachment area. Each groove is configured to receive an optical waveguide and defined by a bottom surface, a first region, a second region, and an opening. The first region is defined between the bottom surface and the second region. The first region in cross section has substantially parallel sidewalls separated by a spacing. The second region is disposed between the first region and the opening. A width of the opening is greater than the spacing.
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公开(公告)号：US11543603B2
公开(公告)日：2023-01-03
申请号：US17250172
申请日：2019-06-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase
Abstract: An optical ferrule has a different thermal expansion coefficient than a substrate to which a optical device is mounted, the ferrule optically coupling the device to one or more optical fibers. The optical ferrule includes and/or a cradle in which the ferrule is mounted include lateral and longitudinal engagement feature that ensure alignment with the optical device at an operating temperature, the ferrule expanding relative to the substrate when transitioning to the operating temperature.
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公开(公告)号：US20220357513A1
公开(公告)日：2022-11-10
申请号：US17851384
申请日：2022-06-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Bing Hao
Abstract: A light coupling unit for use in an optical connector includes a waveguide alignment member that receives and aligns at least one optical waveguide. The light coupling unit includes a light redirecting member that has an input surface configured to receive input light from the end face of the optical wave guide. A curved reflective surface of the light redirecting member receives light from the input surface propagating along an input axis and redirects the light such that the redirected light propagates along a different redirected axis. An output surface of the light redirecting member receives the redirected light and transmits the redirected light as output light propagating along an output axis and exiting the light redirecting member. A curved intersection of the curved reflective surface and a first plane formed by the input and redirected axes has a radius of curvature. The curved reflective surface has an axis of revolution disposed in the first plane. The axis of revolution forms a first angle with the redirected axis which is non-zero. The waveguide alignment member is configured such that the end face of the optical wave guide is positioned at a location that is not a geometric focus of the curved reflective surface.
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公开(公告)号：US20220342159A1
公开(公告)日：2022-10-27
申请号：US17851478
申请日：2022-06-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Bing Hao , Changbao Ma , Terry L. Smith
Abstract: A light coupling element including a groove and a light redirecting member is described. The groove is for receiving and aligning an optical waveguide and incudes an open front end and a back end. The light redirecting member includes an input side for receiving light from an optical waveguide received and supported in the groove and a light redirecting side for changing a direction of light received from the input side. The groove may include a bottom surface extending between the front and back ends of the groove and including a raised bottom surface portion raised upwardly relative to an unraised bottom surface portion. The unraised bottom surface portion of the bottom surface may be disposed between the raised bottom surface portion of the bottom surface and the input side of the light redirecting member. Optical coupling assemblies including the light coupling element and an optical waveguide are described.
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公开(公告)号：US20220229242A1
公开(公告)日：2022-07-21
申请号：US17716052
申请日：2022-04-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. Haase , Alexander R. Mathews , Terry L. Smith , James M. Nelson
Abstract: A unitary optical ferrule is molded to include one or more elements for receiving and securing one or more optical waveguides one or more elements for affecting one or more characteristics of light from the optical waveguide while propagating the light within the ferrule. The optical ferrule also includes one or more first alignment features and one or more second alignment features that, when the ferrule is mated with a mating ferrule, each controls alignment of the ferrule with the mating ferrule along three mechanical degrees of freedom. The surface of the optical ferrule can be divided along the thickness axis into a first section and an opposing second section, wherein the first section of the surface includes the receiving and securing elements, the light affecting elements, and the first alignment features and the second section of the surface includes the second alignment features.
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