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Silica-based Yb 3+-doped glass is prepared by non-chemical vapor deposition.The drawn photonic crystal fiber(PCF) has a strong absorption at 976 nm and emission wavelength of approximately 1 037 nm.The intensity and spectral lineshape of the near infrared(NIR) luminescence of the Yb3+-doped PCF are recorded and discussed in terms of excitation power,excitation wavelength,fiber length,and Yb3+ ion concentration.The emission intensifies as the excitation power and Yb3+ ion concentration increase.The intensity of the shorter wavelength side of the luminescence spectrum decreases as the length of the PCF increases. 相似文献
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