Back to results
US 2020/0028314 A1Published application
Amplification optical fiber, fiber laser device, and optical resonator
AssigneeFujikura Ltd.
InventorsRintaro Kitahara, Hidenori Miyauchi
Life of this patent
Estimating the term…
Abstract
An amplification optical fiber includes: a core; an inner cladding having a refractive index lower than a refractive index of the core, wherein an active element pumped by pumping light is entirely doped to the core, and a relative effective refractive index difference of light in an LP01 mode is greater than or equal to 0.05% and a relative effective refractive index difference of light in an LP21 mode is less than 0.05% in light propagating through the core.
Claims11
An amplification optical fiber comprising:
- a core;
- a cladding having a refractive index lower than a refractive index of the core, wherein
- an active element pumped by pumping light is entirely doped to the core, and
- a relative effective refractive index difference of light in an LP01 mode is greater than or equal to 0.05% and a relative effective refractive index difference of light in an LP21 mode is less than 0.05% in light propagating through the core.
1 more element
Dependencies are inferred from the claim text.