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US 12,523,823 B2Granted
Optical fiber bundle and optical switch
AssigneeSumitomo Electric Industries, Ltd.
InventorsOsamu Shimakawa, Hidehisa Tazawa, Masato Tanaka
Life of this patent
Estimating the term…
Abstract
According to one embodiment, in an optical fiber bundle, in the cross section, arrangement of cores of a first multi-core fiber and arrangement of cores of a second multi-core fiber are the same as each other, arrangement of cores of a third multi-core fiber and arrangement of cores of a fourth multi-core fiber are the same as each other, and when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber, the arrangement of the cores of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber.
Claims8
An optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other,
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber, and
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 0° in the circumferential direction of the first multi-core fiber is not the same as the arrangement of the cores of the fourth multi-core fiber.
8 more elements
An optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other,
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber,
- wherein the ferrule has one optical fiber holding hole into which the four or more multi-core fibers are inserted, and
- wherein, in the cross section, the optical fiber holding hole exhibits a circular shape.
9 more elements
An optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other,
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber, and
- wherein the ferrule has a plurality of optical fiber holding holes into which each of the four or more multi-core fibers is inserted.
8 more elements
An optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other,
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber,
- wherein light is emitted from one multi-core fiber among the first multi-core fiber, the second multi-core fiber, the third multi-core fiber, and the fourth multi-core fiber,
- wherein two multi-core fibers other than the one multi-core fiber receive the light reflected by a mirror, and
- wherein arrangements of cores of the two multi-core fibers in the cross section are the same as each other.
10 more elements
An optical switch comprising:
- an optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other, and
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber;
- a mirror reflecting light emitted from the optical fiber bundle;
- and
- a prism inserted into and ejected from an optical path of the light emitted from the optical fiber bundle.
11 more elements
An optical fiber bundle comprising:
- four or more multi-core fibers;
- and
- a ferrule bundling and holding the four or more multi-core fibers,
- wherein in a cross section where, among the four or more multi-core fibers, a first multi-core fiber, a second multi-core fiber, a third multi-core fiber, and a fourth multi-core fiber are cut along a plane perpendicular to a direction in which each multi-core fiber extends, lines connecting center positions of each of the multi-core fibers are arranged to form a square shape,
- wherein, in the cross section, the first multi-core fiber and the second multi-core fiber are aligned in this order along a first direction,
- wherein the first multi-core fiber and the fourth multi-core fiber are aligned in this order along a second direction perpendicular to the first direction,
- wherein the fourth multi-core fiber and the third multi-core fiber are aligned in this order along the first direction,
- wherein, in the cross section, arrangement of cores of the first multi-core fiber and arrangement of cores of the second multi-core fiber are the same as each other,
- wherein arrangement of cores of the third multi-core fiber and arrangement of cores of the fourth multi-core fiber are the same as each other,
- wherein the arrangement of the cores of the first multi-core fiber when the first multi-core fiber is rotated 180° in a circumferential direction of the first multi-core fiber is the same as the arrangement of the cores of the fourth multi-core fiber, and
- wherein each of the four or more multi-core fibers is circular in shape in the cross section.
8 more elements
Dependencies are inferred from the claim text.