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Optical fiber for a fiber laser, fiber laser, and production method for optical fiber for a fiber 发明授权

2023-09-20 4340 2633K 0

专利信息

申请日期 2025-07-10 申请号 US16594852
公开(公告)号 US11245241B2 公开(公告)日 2022-02-08
公开国别 US 申请人省市代码 全国
申请人 FANUC CORPORATION
简介 An optical fiber for a fiber laser includes a core to which a rare-earth element is added, a first cladding formed around the core; and a second cladding formed around the first cladding, and excitation light is guided from at least one end of the first cladding to excite the rare-earth element to output a laser oscillation light. An addition concentration of the rare-earth element to the core is different in a longitudinal direction of the optical fiber for a fiber laser, and a core diameter and a numerical aperture of the optical fiber for a fiber laser are constant in the longitudinal direction of the optical fiber for a fiber laser.


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