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
(060.2400) Fiber optics and optical communications : Fiber properties
(160.2290) Materials : Fiber materials
(160.5690) Materials : Rare-earth-doped materials
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
Chao Wang, Guiyao Zhou, Ying Han, Wei Wang, Changming Xia, and Lantian Hou, "Spectral evolution of NIR luminescence in a Yb3+-doped photonic crystal fiber prepared by non-chemical vapor deposition," Chin. Opt. Lett. 11, 061601- (2013)