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公开(公告)号：US20230115918A1
公开(公告)日：2023-04-13
申请号：US17949020
申请日：2022-09-20
IPC分类号： G02B6/38
摘要： An optical connector has a front end and a rear end in a first direction. The optical connector includes a ferrule that holds an optical fiber at the front end, and a front housing that accommodates the ferrule. The ferrule includes a flange portion having a regular hexagonal prism shape. The front housing has a through-hole into which the flange portion is inserted. The through-hole includes a first hole portion in which a cross section perpendicular to the first direction is a regular hexagonal shape, and a second hole portion that is continuous from the first hole portion. The second hole portion has a third end close to the front end, and a fourth end close to the rear end. In a cross section of the fourth end perpendicular to the first direction, six contours corresponding respectively to six sides of the third end bulge outward or inward.
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公开(公告)号：US20220276440A1
公开(公告)日：2022-09-01
申请号：US17631787
申请日：2020-08-19
发明人： Kazuyoshi OOKI , Makoto MIYAMORI , Hideaki YUSA
IPC分类号： G02B6/255
摘要： A fusion splicing device includes a fusion splicing unit, a fusion splicing control unit, an imaging unit, and a notification unit. The fusion splicing unit fusion-splices optical fibers by discharge between a pair of electrode rods. The fusion splicing control unit controls an operation of the fusion splicing unit and has an operation mode for performing a discharge test. The imaging unit generates image data of a fusion spliced portion of the optical fibers. The notification unit notifies various kinds of information. The discharge test is to fusion-splice the optical fibers, to check a fusion-spliced state of the optical fibers on the basis of the image data, and to adjust a fusion splicing condition to be close to an optimum condition. When a predetermined start condition is satisfied, the fusion splicing control unit causes the notification unit to notify information for requesting execution of the discharge test.
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公开(公告)号：US20220196908A1
公开(公告)日：2022-06-23
申请号：US17557216
申请日：2021-12-21
IPC分类号： G02B6/02
摘要： An optical fiber includes a silica-based glass. The optical fiber includes a core, an optical cladding surrounding the core, and a physical cladding surrounding the optical cladding. The optical cladding includes a first region in contact with the core and surrounding the core. A photosensitive material is added to the core and the first region. A concentration of the photosensitive material in the first region is 30% or more of a concentration of the photosensitive material in the core. A value obtained by integrating a light intensity of an LP01 mode at a wavelength of 1310 nm in a region added with the photosensitive material is 87% or more of a value obtained by integrating the light intensity in an entire region of the optical fiber.
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公开(公告)号：US20220078534A1
公开(公告)日：2022-03-10
申请号：US17311573
申请日：2019-12-24
IPC分类号： H04Q11/00
摘要： A system for releasing locking of a fusion splicer includes a fusion splicer, an information terminal, and a server. The fusion splicer locks a fusion-splicing function in accordance with a predetermined lock condition and releases the locked function in accordance with a release command input. The server includes a storage unit that stores authentication information provided by a user of the fusion splicer, a collation unit that collates authentication information provided from the information terminal with the authentication information stored in the storage unit, and a password issuance unit that issues a one-time password including at least a date in an algorithm when a collation result is favorable. The information terminal authenticates the one-time password in consideration of a day difference or a time difference between the information terminal and the server and applies the release command to the fusion splicer when an authentication result is favorable.
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55.发明申请公开(公告)号：US20220035098A1
公开(公告)日：2022-02-03
申请号：US17280527
申请日：2019-09-24
发明人： Ryosuke MEO , Hiroshi TAKAYANAGI
IPC分类号： G02B6/255
摘要： A reinforcement device for an optical fiber fusion-spliced portion, which reinforces a fusion-spliced portion of optical fibers by heating and shrinking a reinforcement sleeve covering the fusion spliced portion, includes a heater configured to heat the reinforcement sleeve. The heater includes a sleeve housing portion capable of housing the reinforcement sleeve. The sleeve housing portion includes a first wall portion extending in a longitudinal direction of the sleeve housing portion and a second wall portion facing the first wall portion. The first wall portion and the second wall portion are configured such that a distance therebetween increases from a bottom portion side of the sleeve housing portion toward a top portion side of the sleeve housing portion in a cross-section orthogonal to the longitudinal direction. At least one bent portion is formed to at least one of the first wall portion and the second wall portion in the cross-section.
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公开(公告)号：US20220026638A1
公开(公告)日：2022-01-27
申请号：US17312309
申请日：2019-12-13
发明人： Hiroki AKIYAMA , Makoto MIYAMORI , Kazuyoshi OOKI , Ryosuke MEO , Ryuichiro SATO , Hiroshi TAKAYANAGI
IPC分类号： G02B6/255
摘要： An optical fiber fusion splicing method for performing fusion splicing through positioning of optical fibers to be spliced in a V-groove is provided. The optical fiber fusion splicing method includes pressing the optical fibers placed in the V-groove relatively toward the V-groove using a clamp, varying a clamp pressure of the clamp pressing the optical fibers, and moving the optical fibers placed in the V-groove with respect to the V-groove in an axial direction.
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公开(公告)号：US10962709B2
公开(公告)日：2021-03-30
申请号：US17016894
申请日：2020-09-10
摘要： An optical fiber according to an embodiment includes a core having a single-peaked and graded refractive index profile, an inner cladding surrounding the core, and an outer cladding surrounding the inner cladding. The inner and outer claddings have refractive indices lower than the maximum refractive index of the core. A photosensitive region constituted by the core and the inner cladding contains a photosensitive material. The inner cladding has an outer diameter one time or more and two times or less the MFD of an LP01 mode in a 1310-nm wavelength band.
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58.发明授权公开(公告)号：US12111224B2
公开(公告)日：2024-10-08
申请号：US17612745
申请日：2020-06-03
发明人： Gouichi Fukumoto , Yoshifumi Hishikawa , Tetsufumi Tsuzaki , Toshiyuki Miyamoto , Kenichiro Otsuka
IPC分类号： G01M11/00 , H04B10/077
CPC分类号： G01M11/335 , H04B10/0775
摘要： An inspecting device has an optical switch selectively coupling a light source unit with each of light input/output ports; a first light detecting unit detecting a first intensity of test light input from an inspecting device on a counterpart side and passing through the optical switch; a second light detecting unit detecting a second intensity of the test light directed from the light source unit toward the optical switch; a third light detecting unit optically coupled to another end of a test optical fiber having one end connected to each of the plurality of light input/output ports, and detecting a third intensity of the test light received from the light source unit via the test optical fiber; and an internal loss recording unit recording a loss of an optical path inside the device obtained on a basis of a difference between the third intensity and the second intensity.
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公开(公告)号：USD1044482S1
公开(公告)日：2024-10-01
申请号：US29847926
申请日：2022-07-28
摘要： FIG. 1 is a front perspective view of a tray for storing optical fiber showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is an enlarged view of area 9 in FIG. 3;
FIG. 10 is a cross-sectional view taken in the direction of line 10-10 in FIG. 9; and,
FIG. 11 is a cross-sectional view taken in the direction of line 11-11 in FIG. 7.
The broken lines in the drawings depict portions of the tray for storing optical fiber that form no part of the claimed design. The dot dashed lines shown in FIGS. 3, 9, and 10 denote the boundaries of the detail view area and form no part of the claimed design.-
公开(公告)号：US20240319442A1
公开(公告)日：2024-09-26
申请号：US18575047
申请日：2022-06-27
发明人： Shinsuke KURINO
IPC分类号： G02B6/25
CPC分类号： G02B6/25
摘要： An optical fiber cutter includes a main body including a fiber fixing portion, and a moving portion including a blade for scratching the optical fiber, the moving portion being attached to the main body to be movable between a first position and a second position, the first position being an initial position before the optical fiber is scratched, the second position being a position after the optical fiber is scratched. The fiber fixing portion is configured to move the optical fiber such that the optical fiber fixed to the fiber fixing portion does not cross a movement range when the blade portion moves from the second position to the first position, and such that a cleaved surface of the optical fiber after cleaving is positioned in a direction away from the blade portion along an axial direction of the optical fiber.
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