Abstract: An optical fiber rack includes a rack part on which a termination unit is located, and an optical fiber housing part for housing an extra length wiring part in an optical fiber bundle, the optical fiber housing part being positioned in a first direction. The termination unit includes a plurality of first optical fibers, a ay provided on one end side of the termination unit in a second direction, the tray being slidable in the second direction, and a plurality of adapters which are arranged in a line on the tray. The tray has a first support part for supporting the optical fiber bundle, the optical fiber rack further includes a second support part arranged in the second direction with respect to the first support part, and the second support part stretchably supports the optical fiber bundle extending from the first support part to the optical fiber housing part.

Abstract: An optical connector according to an exemplary embodiment is an optical connector including a plurality of optical connector plugs collectively connected to each of a plurality of adapters arranged along a first direction and a second direction intersecting the first direction, along a connection direction intersecting both the first direction and the second direction, the optical connector includes: a plurality of holders configured to be arranged along the second direction while holding the plurality of optical connector plugs arranged in the first direction, and a handle configured to hold the plurality of holders arranged in the second direction.

Abstract: Provided is an optical fiber holder comprising a holder body and a cover. The holder body has an accommodation section capable of accommodating a plurality of optical fibers. The holder body or the cover has at least one ridge which can be disposed within the accommodation section. When the cover is closed over the holder body, a plurality of sections which can parallelly accommodate the plurality of optical fibers are parallelly formed by the inner surface of the accommodation section, the lower surface of the cover, and the ridge.

Abstract: An optical fiber cutting apparatus includes a body portion on which an optical fiber is mounted, a cover member that is rotatably connected to the body portion and fixes the optical fiber between the body portion and the cover member by rotating toward the body portion, a blade member configured to form a flaw on a glass fiber portion of the optical fiber which is fixed, and a holding member mounted on the body portion, the holding member configured to hold the blade member. The cover member presses the holding member and thereby the blade member imparts an arc movement to form the flaw on the glass fiber portion.

Abstract: An optical connector ferrule comprising a first end, a second end, and an outer surface extending between the first and second ends is disclosed. The optical connector ferrule comprises an opening; an introducing hole which extends from the opening to the first end; optical fiber holes which pass through from a tip portion of the introducing hole to the first end; and a window which opens to the outer surface and is connected to the introducing hole, and into which an adhesive is injected. A first opening of the window closer to the outer surface is larger than a second opening of the window closer to the introducing hole. An inner wall of the window includes a first surface provided in the peripheral direction of the inner wall, and the first surface is positioned closer to the introducing hole with respect to the outer surface, and faces the outer surface.

Abstract: A reinforcing apparatus for reinforcing a fusion-splicing part between optical fibers includes a main body part, a heater that heats a heat-shrinkable tube covering the fusion-splicing part, and a pair of clamp parts that are provided at opposite sides of the heater and respectively hold an optical fiber or an optical connector. The pair of the clamp parts respectively include a storage part that stores the optical fiber or the optical connector, and a clamper that is rotatably supported in the main body part and can be disposed in an open state where an upper portion of the storage part is opened and in a closed state where the optical fiber or the optical connector stored in the storage part is sandwiched. A clamp part of at least one part of the pair of clamp parts includes a sliding part that is slidably mounted on a storage part.

Abstract: A neck-hung operation tray includes a first operation tray in which a fusion splicer is mounted, and a second operation tray which is assembled with the first operation tray. The first operation tray includes an installation surface on which the fusion splicer is installed, and a pair of projecting parts disposed around the installation surface and having through holes, and first openings respectively disposed in the vicinity of the projecting parts in the installation surface. The second operation tray includes an operation surface, a second opening formed in the operation surface, and the engaging parts projecting outward from the second opening. The engaging parts are engaged with the first openings, and the projecting parts are accommodated in the second opening such that the fusion splicer is mounted on the installation surface and the top surfaces of the engaging parts.

Abstract: An optical connector ferrule has a pair of end faces, a plurality of fiber holding holes, and a fiber introduction space having an opening at one end face, communicating with the plurality of fiber holding holes, and receiving the plurality of optical fibers collectively. An inner surface defining the fiber introduction space includes a fiber supporting surface having a plurality of guide grooves formed in such a way as to extend individually from ends of the plurality of fiber holding holes towards the one end face and a pair of first inner lateral surfaces extending individually from both ends of the fiber supporting surface in the second direction. A space between the pair of inner lateral surfaces expands gradually as further away from the fiber supporting surface.

Abstract: An optical connector according to one embodiment includes a plurality of optical connector plugs collectively connected to a plurality of adapters in a connection direction, each optical connector plug including a ferrule holding an optical fiber, contacting portions located on the opposite side to the adapter with respect to a ferrule end face of the ferrule and coming into contact with each adapter, wherein distances from the ferrule end face to the contacting portions are longer than distances from the ferrule end face to the contacting portions, respectively, determined by optical connector international standards.

Abstract: An optical connector comprises: an inner housing including an engagement recess for engaging an optical adaptor on its surface; a boot connected to a rear side of the inner housing; a first outer housing covering the engagement recess; and a second outer housing covering a part of the first outer housing and provided freely movably in a front-rear direction relative to the first outer housing. When the second outer housing moves frontward, the engagement recess is exposed by the second outer housing and the inner housing moving relative to the first outer housing, and when the second outer housing moves rearward, the engagement recess is exposed by the second outer housing and the first outer housing moving relative to the inner housing.

Abstract: An optical fiber cutter 1 includes a cutter base body 3, a slider 7 movably provided on the cutter base body 3, a blade member 23 provided on the slider 7, an object 30 to be detected provided on either one of the cutter base body 3 and the slider 7, a sensor 32 provided on the other of the cutter base body 3 and the slider 7 and detecting the object 30 to be detected, a controller 34 that, on the basis of the detection results of the sensor 32, calculates the number of movements of the slider 7 to a predetermined position and stores the calculated number, and a display unit 36 that displays the number of movements of the slider 7 to the predetermined position calculated by the controller 34.

Abstract: A termination unit located on a rack part of an optical fiber rack includes a housing a plurality of first optical fibers located in the housing, the plurality of first optical fibers being fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, an adapter group including a plurality of adapters in a line in the housing, the plurality of adapters being respectively connected to the plurality of first optical fibers on an inside of the housing and being respectively connected to a plurality of second optical fibers on an outside of the housing, and an optical fiber passing part through which at least one optical fiber is configured to pass, the optical fiber passing part being located in at least one of: the adapter group, and between the housing and the adapter group in an arrangement direction.

Abstract: Provided is an optical fiber cutter for cutting an optical fiber, the optical fiber cutter including a cutter base, a slider, a blade member, a rotating body, and a rotation control mechanism that controls rotation of the blade member, in which the rotation control mechanism includes a main body rotatably provided in the cutter base, and a swinging portion that swings around a shaft provided in the cutter base in conjunction with rotation of the main body, and the swinging portion swings to a first position at which the swinging portion comes into contact with the rotating body to rotate the blade member by a predetermined angle when the slider reaches a predetermined position and a second position at which the swinging portion does not come into contact with the rotating body at the predetermined position of the slider.

Abstract: An optical connector plug includes an optical connector having an optical fiber built therein, and a cover member receiving the optical connector therein. The cover member includes a set of protrusions provided to protrude forward relative to a front end surface of the optical connector. A set of cutout portions as space portions are provided between the set of protrusions, and the set of cutout portions are arranged at locations opposing each other around the optical connector.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the plurality of termination units is housed, a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part, and, a plurality of optical fiber guides attached to the partition plate and arranged in the vertical direction. The optical fiber guide comprises a first guide part housing the first optical fibers toward to the first optical fiber housing part, and a second guide part housing the second optical fiber passing through an opening provided in the partition plate.

Abstract: The optical connector according to one embodiment includes a plurality of optical connector plugs collectively connected to a plurality of adapters in a connection direction, wherein each of the optical connector plugs includes a tubular ferrule which holds an optical fiber, and a diameter of the ferrule is smaller than that of a ferrule defined by the international standard of the optical connector.

Abstract: This optical-fiber fusion-splicing device includes: a first heating device (12); a second heating device (13); and a CPU (14) which controls the first heating device (12) and the second heating device (13), wherein the CPU (14) stops heating of the second heating device (13) if heating of the first heating device (12) is started during heating in the second heating device (13), and resumes the heating of the second heating device (13) if the heating of the first heating device (12) is ended, and sets a heating condition after resumption of heating in the second heating device (13), based on at least an interruption time of heating or a change in temperature during heating interruption in the second heating device (13).

Abstract: An optical connector is an optical connector that is connected to another connector in a predetermined connection direction. The optical connector includes a ferrule that includes insertion holes into which guide pins to be connected to another connector are to be inserted; and a pin keeper 20 that is provided on a side of the ferrule opposite to the another connector and includes retaining holes 21 retaining the guide pins inserted into the insertion holes. The pin keeper 20 includes a pair of side portions 22 in which the retaining holes 21 are formed, and a bottom portion 23 that connects end portions of the pair of side portions 22. The retaining holes 21 are formed in a shape in which inside surfaces of the side portions 22 facing each other are notched.

Abstract: A multi-core/single-core conversion module is disclosed. The multi-core/single-core conversion module includes a housing including a first end, a second end and a lateral wall defining an inner space between the first end and the second end, a first adapter attached to the first end of the housing, two or more second adapters attached to the second end of the housing, a multi-core optical connector inserted into the first adapter from the inner space of the housing, a plurality of single-core optical connectors respectively inserted into the second adapters from the inner space of the housing, and a plurality of optical fibers connecting the multi-core optical connector to the plurality of single-core optical connectors with each other. The second adapters are arranged on the second end across a plurality of tiers. An opening can be formed by a part of the lateral wall being detached.