Abstract: A connector with built-in bent optical fibers includes an optical fiber array including a plurality of bent optical fibers each having a bent portion and a linear portion formed integrally with the bent portion, a ferrule having a plurality of positioning mechanisms that align end portions of the plurality of bent optical fibers, and a resin portion disposed at an outer periphery of the bent portion. The resin portion is filled in the ferrule. The bent portion has a bending angle of 85°-150°. When the bent portion of one bent optical fiber is divided into a plurality of regions along a longitudinal direction at 10°, a variation in bend radius among the plurality of regions excluding regions corresponding to 10° at both ends is 0.3 mm or less, an outer diameter of the bent portion of the bent optical fiber is smaller than an outer diameter of the linear portion.

Abstract: An optical connector includes an optical fiber, and a ferrule configured to hold the optical fiber, wherein the ferrule has a front part, a rear part, a deformable mechanism to connect between the front part and the rear part, and an opening to allow the optical fiber to bend along with displacement of the deformable mechanism, and wherein the deformable mechanism has a restrictor to restrict the displacement or deformation of the deformable mechanism, the restrictor being provided at least between the deformable mechanism and the front part or between the deformable mechanism and the rear part.

Abstract: An optical connector includes a fiber holder with guide holes for guiding optical fibers, a space communicating with the guide holes and to accommodate the optical fibers, and a deformable member that forms at least a part of the fiber holder and causes the space to deform or displace to allow a part or all of the optical fibers to bend in the space.

Abstract: An optical connector includes an optical fiber, and a ferrule configured to hold the optical fiber, wherein the ferrule has a front part, a rear part, a deformable mechanism to connect between the front part and the rear part, and an opening to allow the optical fiber to bend along with displacement of the deformable mechanism, and wherein the deformable mechanism has a restrictor to restrict the displacement or deformation of the deformable mechanism, the restrictor being provided at least between the deformable mechanism and the front part or between the deformable mechanism and the rear part.

Abstract: A component for peeling the coating and breaking the optical fiber, which comprises the first member made of resin material including a groove portion enabling to receive a coated optical fiber, an optical fiber cutting blade and a coat removing blade integrally formed within the groove portion, and a breaking portion in an intermediate portion, and the second member made of resin material including a groove portion corresponding to the groove portion in the first member enabling to receive a coated optical fiber, a coat removing blade corresponding to the coat removing blade in the first member, and a breaking portion in an intermediate portion corresponding to the breaking portion in the first member.

Abstract: A component for peeling the coating and breaking the optical fiber, which comprises the first member made of resin material including a groove portion enabling to receive a coated optical fiber, an optical fiber cutting blade and a coat removing blade integrally formed within the groove portion, and a breaking portion in an intermediate portion, and the second member made of resin material including a groove portion corresponding to the groove portion in the first member enabling to receive a coated optical fiber, a coat removing blade corresponding to the coat removing blade in the first member, and a breaking portion in an intermediate portion corresponding to the breaking portion in the first member.

Abstract: The optical connector ferrule has a second alignment board and a housing part having a first alignment board and a pair of side support parts. The first alignment board has a surface in which bare fiber parts of a optical fiber ribbon are positioned in a width direction and has holding grooves for arranging bare fiber parts. Side support parts support ends of the first alignment board and have an open part larger than a width of the ribbon in a upper and/or lower surface side of the first alignment board. The second alignment board has a positioning part for positioning in the width direction by engaging with a part of bare fiber parts on holding grooves and a fixing part for pressing and fixing bare fiber parts. The second alignment board is arranged to face the first alignment board and to sandwich bare fiber parts.

Abstract: An optical connector includes a fiber holder with guide holes for guiding optical fibers, a space communicating with the guide holes and to accommodate the optical fibers, and a deformable member that forms at least a part of the fiber holder and causes the space to deform or displace to allow a part or all of the optical fibers to bend in the space.

Abstract: An optical waveguide collimator includes: an optical waveguide base material which includes a light emitting face having a light emitting end face of an optical waveguide, and an adhering area face provided separated from the light emitting face; a collimator lens arranged on a light emitting end face side of the optical waveguide; and a lens holding member which holds the collimator lens and which is adhered and fixed to the adhering area face of the optical waveguide base material.

Abstract: A component for peeling the coating and breaking the optical fiber, which comprises the first member made of resin material including a groove portion enabling to receive a coated optical fiber, an optical fiber cutting blade and a coat removing blade integrally formed within the groove portion, and a breaking portion in an intermediate portion, and the second member made of resin material including a groove portion corresponding to the groove portion in the first member enabling to receive a coated optical fiber, a coat removing blade corresponding to the coat removing blade in the first member, and a breaking portion in an intermediate portion corresponding to the breaking portion in the first member.

Abstract: An optical module including first and second lens housings that individually receive first and second lenses; first and second optical fiber housings that individually receive end portions of optical fibers; first and second guide pins for positioning the first and second lens housings and the first and second optical fiber housings, with the first and second lens housings abutted against each other at their inner end faces and disposed between the first and second optical fiber units so as to be abutted thereto; two first positioning members provided between the first optical fiber housing and the first lens and between the second optical fiber housing and the second lens, respectively; and a second positioning member disposed between the first and second lenses.

Abstract: An optical module including first and second lens housings that individually receive first and second lenses; first and second optical fiber housings that individually receive end portions of optical fibers; first and second guide pins for positioning the first and second lens housings and the first and second optical fiber housings, with the first and second lens housings abutted against each other at their inner end faces and disposed between the first and second optical fiber units so as to be abutted thereto; two first positioning members provided between the first optical fiber housing and the first lens and between the second optical fiber housing and the second lens, respectively; and a second positioning member disposed between the first and second lenses.

Abstract: An optical module includes first and second fiber units that hold end portions of first and second optical fibers, and first and second collimators disposed between these fiber units and having first and second lenses, respectively. End faces of the first and second optical fibers are disposed on imaginary circumferences on the end faces of the first and second fiber units. Laser light beams from the end face of the first optical fiber are collimated by the first lens and then focused by the second lens, and enter the end face of the second optical fiber that is disposed diametrically opposite to the first optical fiber with respect to the center axis of the optical module.

Abstract: An optical connector ferrule for supporting an optical fiber tape conductor having an end of which a coating is peeled off to expose optical fibers, comprising: a plurality of fiber inserting holes which are arranged at a plurality of steps and into which the optical fibers are inserted; a guide portion for guiding insertion of optical fibers, formed so as to have an end communicating with a fiber inserting end of each of the fiber inserting holes, the guide portion extending along an axial direction of the fiber inserting holes; and a contact portion formed to be a predetermined distance spaced from an opening end opposed to the fiber inserting end of each of the fiber inserting holes along the axial direction of the fiber inserting holes, the contact portion being brought in contact with an exposed fiber side end of a tape member of the optical fiber tape conductor when each of the optical fibers of the optical fiber tape conductor is inserted into each of the fiber inserting holes.

Abstract: A ferrule for optical connector has a body in which lines of fiber holes are arranged in a plurality of tiers. A cavity is formed in the body, and its bottom connects with the respective inlets of the fiber holes. The bottom of the cavity is a tiered bottom designed so that the respective inlet positions of the fiber holes are differentiated in stages between adjacent lines of the fiber hole array. The tiered bottom is formed having guide grooves that extend toward the respective inlets of the fiber holes in the same column of the fiber hole array. An opening is formed in a position of the outer surface of the body parallel to rows of the fiber hole array. The opening allows the tiered bottom to be exposed through the outer surface of the body.

Abstract: A method for producing a ferrule having a plurality of fiber holes for insertion of optical fibers formed between two pin holes for insertion of guide pins, and a ferrule produced by the method. The method comprises a step of injecting a synthetic resin in a mold for forming the ferrule while holding a plurality of pins with a Young's modulus of(22 to 59)×1010N/m2 for forming the fiber holes at two points separated by a distance of 1.5 to 4 mm in a lengthwise direction of the pins.

Abstract: An optical multiplexer/demultiplexer wherein an optical fiber, attached to a ferrule, for receiving and outputting light, a lens member 4 and an optical component are optically coupled. The ferrule is formed of a synthetic resin and has at least one fiber hole formed therein.