| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical amplification component capable of prolonging the lifetime of an optical fiber for amplification, and a fiber laser device.SOLUTION: An optical amplification component 1 comprises a radiator plate 10, and an optical fiber 20 for amplification disposed in the radiator plate 10. A first fiber portion 20A from a reference position RP between one end E1 and the other end E2 in the optical fiber 20 for amplification to one end side and a second fiber portion 20B from the reference position RP to the other end side enclose the reference position RP side by side without being overlapped, and are separated towards a tip. |
