| http://www.w3.org/ns/prov#value | - For example, there is a constitution available that an optical fiber doped with both Pr3+ and Yb3+ is used as an optical fiber 1002, the pumping wavelength ??1 is obtained by the 850-nm semiconductor laser 1003, and the oscillation wavelength ??2 obtains 635-nm laser light, while an optical fiber doped with Tm3+ is used as an optical fiber 1007, the pumping wavelength ?? 3 is obtained by the 1210-
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