| 简介 |
A fiber laser device includes a pumping light source configured to output pumping light having a wavelength λ, and a rare earth-doped fiber, wherein when the intensity change rate of the pumping light with respect to the temperature is denoted by ΔP dB/° C., the wavelength change rate of the pumping light with respect to the temperature is denoted by Δλp nm/° C., the pumping light absorption change rate of the rare earth-doped fiber per unit wavelength change at the wavelength of λ nm when the wavelength of the pumping light changes is denoted by A′(λ) dB/nm, and the pumping light absorption change amount of the rare earth-doped fiber per unit temperature change at the wavelength of λ nm when the temperature of the rare earth-doped fiber changes is denoted by ΔA(λ) dB/° C., the wavelength λ of the pumping light is such a wavelength λ that ΔP, Δλp×A′(λ) and ΔA(λ) compensate with each other. |
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