Optical fiber for preserving plane of polarization
AssigneeFujikura Ltd.
InventorsNaoki Shamoto, Kuniharu Himeno, Akira Wada
Life of this patent
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Abstract
An optical fiber for preserving the plane of polarization including a cladding and a stress imparting part disposed in the cladding, the stress imparting part comprising a base material including B2O3. The average concentration of B2O3 in the base material of the stress imparting part is in a range between about 17 and 21 wt. %, and the maximum concentration of B2O3 in the base material is in a range between about 17 and 22 wt. %. The optical fiber has excellent polarization plane preserving properties, and no concave portion is generated in its stress imparting part even under wet heat conditions.
Claims2
An optical fiber for preserving a plane of polarization, comprising:
- a cladding;
- and
- a stress imparting part disposed in said cladding, said stress imparting part comprising a base material comprising B2O3, wherein
- the average concentration of B2O3 in the base material of the entire stress imparting part is in a range between about 17 and 21 wt. %, and
- the maximum concentration of B2O3 in the base material of the entire stress imparting part is in a range between about 17 and 22 wt. %.
An optical fiber for preserving a plane of polarization, comprising:
- a cladding;
- and
- a stress imparting part disposed in said cladding, said stress imparting part comprising a base material extending along substantially an entire length of the optical fiber and comprising B2O3, wherein
- the average concentration of B2O3 in the base material is in a range between about 17 and 21 wt. %, and
- the maximum concentration of B2O3 in the base material is in a range between about 17 and 22 wt. %.
Dependencies are inferred from the claim text.