Abstract

Silica-based Yb<sup>3+</sup>-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 Yb<sup>3+</sup>-doped PCF are recorded and discussed in terms of excitation power, excitation wavelength, fiber length, and Yb<sup>3+</sup> ion concentration. The emission intensifies as the excitation power and Yb<sup>3+</sup> ion concentration increase. The intensity of the shorter wavelength side of the luminescence spectrum decreases as the length of the PCF increases.

© 2013 Chinese Optics Letters

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