Optical fiber connecting part and optical module using the same
AssigneeHitachi Cable, Ltd.
InventorsSeiji Kojima, Kanako Suzuki, Mikio Ohkoshi, Yoshikazu Namekawa
Life of this patent
Estimating the term…
Abstract
An optical fiber connecting part has a ferrule, and a guide bore penetrating through the ferrule and configured to guide an optical fiber to be inserted. The guide bore has a first bore provided at one end of the ferrule, through which the optical fiber is inserted into the ferrule, a second bore provided at another end of the ferrule, the second bore having an inner diameter smaller than an inner diameter of the first bore, and an intermediate bore provided between the first bore and the second bore to directly connect between the first bore and the second bore. A center axis of the second bore is shifted from a center axis of the first bore.
Claims11
An optical fiber connecting part comprising:
- a ferrule;
- and
- a guide bore, which is formed to penetrate through the ferrule from an end face on a side of one end to another end face on a side of another end of the ferrule, and configured to guide an optical fiber to be inserted from the side of the one end of the ferrule toward the end face on the side of the other end of the ferrule, the guide bore comprising:
- an optical fiber insertion hole provided on the side of the one end, through which the optical fiber is inserted into the ferrule;
- a light input/output bore provided on the side of the other end of the ferrule and having an inner diameter smaller than an inner diameter of the optical fiber insertion hole, through which a light is input and output at the end face on the side of the other end of the ferrule;
- and
- a shape-changing bore provided between the optical fiber insertion hole and the light input/output bore to communicate therebetween, a shape of which is changed such that an inner diameter of the shape-changing bore is slowly reduced from the optical fiber insertion hole toward the light input/output bore,
- wherein the shape of the shape-changing bore is changed such that a center axis of the light input/output bore is shifted along a direction for restricting the optical fiber with respect to a center axis of the optical fiber insertion hole.
An optical module comprising:
- an optical fiber;
- and
- an optical fiber connecting part comprising:
- a ferrule;
- and
- a guide bore, which is formed to penetrate through the ferrule from an end face on a side of one end to another end face on a side of another end of the ferrule, and guides the optical fiber inserted from the side of the one end of the ferrule toward the end face on the side of the other end of the ferrule, the guide bore comprising:
- an optical fiber insertion hole provided on the side of the one end, through which the optical fiber is inserted into the ferrule;
- a light input/output bore provided on the side of the other end of the ferrule and having an inner diameter smaller than an inner diameter of the optical fiber insertion hole, through which a light is input and output at the end face on the side of the other end of the ferrule;
- and
- a shape-changing bore provided between the optical fiber insertion hole and the light input/output bore to communicate therebetween, a shape of which is changed such that an inner diameter of the shape-changing bore is slowly reduced from the optical fiber insertion hole toward the light input/output bore,
- wherein the shape of the shape-changing bore is changed such that a center axis of the light input/output bore is shifted along a direction for restricting the optical fiber with respect to a center axis of the optical fiber insertion hole.
An optical fiber connecting part comprising:
- a ferrule;
- and
- a guide bore penetrating through the ferrule and configured to guide an optical fiber to be inserted, the guide bore comprising:
- a first bore provided at one end of the ferrule, through which the optical fiber is inserted into the ferrule;
- a second bore provided at another end of the ferrule, the second bore having an inner diameter smaller than an inner diameter of the first bore;
- and
- an intermediate bore provided between the first bore and the second bore to directly connect between the first bore and the second bore,
- wherein a center axis of the second bore is shifted from a center axis of the first bore.
Dependencies are inferred from the claim text.