Optical connecting component and optical connecting structure
View Patent ↗An optical connecting component is an optical connecting component to be connected to another optical connecting component, which includes an optical waveguide component, an alignment component for fixing the optical waveguide component, and a magnetic structure integrated with the alignment component. A positioning structure is provided on a connecting end face of the alignment component, in which the positioning structure determines a relative position between the connecting end face and a connecting end face of an alignment component provided in the other optical connecting component.
1. A first optical connecting component configured to be connected to a second optical connecting component, the first optical connecting component comprising:
an optical waveguide component;
an alignment component for fixing the optical waveguide component;
a magnetic structure integrated with the alignment component; and
a positioning structure provided on a connecting end face of the alignment component, wherein the positioning structure is configured to determine a relative position between the connecting end face and a connecting end face of an alignment component provided in the second optical connecting component;
wherein:
the positioning structure is a guide pin protruding from the connecting end face of the alignment component;
the guide pin is configured to be fitted into a guide hole provided on the connecting end face of the alignment component of the second optical connecting component;
the magnetic structure includes: a metal plate made of a soft magnetic material, arranged on an outer periphery face of the alignment component excluding the connecting end face; and a magnet arranged on an opposite side of the metal plate to the connecting end face; and
the metal plate includes a falling preventing structure made of the soft magnetic material, arranged on an opposite side to the connecting end face and configured to prevent the guide pin from falling.
2. The first optical connecting component according to claim 1 , wherein at least a part of the magnetic structure includes a hard magnetic material.
3. The first optical connecting component according to claim 1 wherein:
the optical waveguide component is an optical element mounted on a substrate;
the alignment component is provided on the substrate;
the positioning structure is arranged around the optical element or adjacent to an end face of the optical element; and
the magnetic structure is joined to the optical element.
4. The first optical connecting component according to claim 1 wherein the magnetic structure includes a magnet having an N-pole and an S-pole along a longitudinal direction of the optical waveguide component.
5. The first optical connecting component according to claim 1 wherein the magnetic structure includes a magnet having an N-pole and an S-pole along an outer peripheral direction of the alignment component.
6. The first optical connecting component according to claim 1 wherein the magnetic structure includes a plurality of first magnets arranged along a longitudinal direction of the optical waveguide component and a plurality of second magnets arranged in an outer peripheral direction of the alignment component, and the plurality of first magnets and the plurality of second magnets are arranged so that opposing faces of neighboring magnets have different polarities.
7. The first optical connecting component according to claim 1 , wherein the magnetic structure extends lower than the alignment component along a face into which the optical waveguide component is inserted.
8. The first optical connecting component according to claim 1 , wherein:
a plate is installed on at least one face of each outer periphery portion of the magnetic structure; and
the plate is made of a soft magnetic material.
9. The first optical connecting component according to claim 8 , wherein a stopper structure is provided on the plate, and the stopper structure restricts a movement in a direction opposite to a direction toward the connecting end face in a longitudinal direction of the optical waveguide component.
10. The first optical connecting component according to claim 8 wherein the positioning structure has a clearance movable in a direction perpendicular to a horizontal plane, and the positioning structure is moved in one direction by a magnetic force acting between the plate and the magnetic structure.
11. An optical connecting structure comprising:
a first optical connecting component comprising:
a first optical waveguide component;
a first alignment component for fixing the first optical waveguide component;
a first magnetic structure integrated with the first alignment component, wherein at least a part of the first magnetic structure includes a hard magnetic material; and
a first positioning structure provided on a connecting end face of the first alignment component, wherein the first positioning structure is configured to determine a relative position between the connecting end face and a connecting end face of a second alignment component provided in a second optical connecting component;
wherein:
the first positioning structure is a guide pin protruding from the connecting end face of the first alignment component;
the guide pin is configured to be fitted into a guide hole provided on the connecting end face of the second alignment component of the second optical connecting component;
the first magnetic structure includes: a metal plate made of a soft magnetic material, arranged on an outer periphery face of the first alignment component excluding the connecting end face; and a magnet arranged on an opposite side to a connecting end face of the metal plate; and
the metal plate includes a falling preventing structure made of the soft magnetic material, arranged on an opposite side to the connecting end face and configured to prevent the guide pin from falling; and
the second optical connecting component connected to the first optical connecting component in such a manner that opposing connecting end faces of the first optical connecting component and the second optical connecting component have different polarities, wherein the second optical connecting component comprises:
a second optical waveguide component;
the second alignment component for fixing the second optical waveguide component;
a second magnetic structure integrated with the second alignment component, wherein at least a part of the second magnetic structure includes a hard magnetic material; and
a second positioning structure provided on the connecting end face of the second alignment component, wherein the second positioning structure is configured to determine a relative position between the connecting end face of the second alignment component and the connecting end face of the first alignment component.
12. The optical connecting structure according to claim 11 , further comprising a foil component arranged on at least one connecting end face of the first magnetic structure, the foil component containing a metallic magnetic material.
13. An optical connecting structure comprising:
a first optical connecting component comprising:
a first optical waveguide component;
a first alignment component for fixing the first optical waveguide component;
a first magnetic structure integrated with the first alignment component, wherein at least a part of the first magnetic structure includes a hard magnetic material; and
a first positioning structure provided on a connecting end face of the first alignment component, wherein the first positioning structure is configured to determine a relative position between the connecting end face of the first alignment component and a connecting end face of a second alignment component provided in a second optical connecting component;
wherein:
the first positioning structure is a guide pin protruding from the connecting end face of the first alignment component;
the guide pin is configured to be fitted into a guide hole provided on the connecting end face of the second alignment component of the second optical connecting component;
the first magnetic structure includes: a metal plate made of a soft magnetic material, arranged on an outer periphery face of the first alignment component excluding the connecting end face; and a magnet arranged on an opposite side to a connecting end face of the metal plate; and
the metal plate includes a falling preventing structure made of the soft magnetic material, arranged on an opposite side to the connecting end face and configured to prevent the guide pin from falling; and
the second optical connecting component connected to the first optical connecting component, the second optical connecting component comprising:
a second optical waveguide component;
the second alignment component for fixing the second optical waveguide component;
a second magnetic structure integrated with the second alignment component, wherein the second magnetic structure is made of a soft magnetic material; and
a second positioning structure provided on the connecting end face of the second alignment component, wherein the second positioning structure is configured to determine a relative position between the connecting end face of the second alignment component and the connecting end face of the first alignment component.
14. The optical connecting structure according to claim 13 , further comprising a foil component arranged on at least one connecting end face of the first magnetic structure or the second magnetic structure, the foil component containing a metallic magnetic material.