Ultra-fast nonlinearity in resonant stark level manifold of an erbium doped silica fiber

Guoli Yin, Xianglin Yang, Mingde Zhang

Shunsuke Ono, Setsuhisa Tanabe, Masato Nishihara +1 more

A study on the dynamics of gain spectral hole burning (GSHB) in a silica-based erbium-doped fiber amplifier at 77 K was performed. When a saturation signal was input into an Er3+-doped fiber, a multigain spectral hole structure that consisted of nine gain spectral holes, was observed in the wavelength region from 1510 to 1640 nm at 77 K. As for the Er3+ ion concentration dependence of these gain spectral holes, the depth of the gain spectral hole at around 1530 nm was found to become shallower in the silica-based erbium-doped fiber that had higher Er3+ ion content. This Er3+ ion concentration dependence of the gain spectral hole depth suggests that the contribution of the energy-transfer interaction between Er3+ ions excited to the Stark levels within the ^4 I_13/2 manifold plays an important role in the gain spectral hole formation at 77 K. As far as we know, this is the first report of the Er3+ ion concentration effect on the GSHB in the Er3+-doped fiber. The dynamics of GSHB is discussed in relation to the effect of energy transfer between Er3+ ions. In addition, the relation between gain spectral hole structure and the Stark energy structure of Er3+ ion is also discussed.

Mahdi Bornadel, Farhad Rasekh, Nasser Gohari Kamel +6 more

We demonstrate ultra-long population storage (∼ 9 hours) and ultra-narrow homogeneous linewidths (∼ 8 kHz) in erbium-doped silica fibers (EDF) at ∼ 7 mK using spectral hole burning and photon-echo techniques. These results establish EDF as a strong candidate for fiber-based quantum networks.

Afshin Shamsshooli

Yundong Zhang, Wei Qiu, Jianbo Ye +4 more

E. Desurvire, J. R. Simpson

Spectroscopic measurements of fluorescence and absorption in an erbium-doped fiber permit the evaluation of the Stark-level energies of the (4)I(15/2) and (4)I(13/2) manifolds in Er:glass. The data permit the allocation of the individual laser transitions associated with the room-temperature gain spectrum of erbium-doped fiber amplifiers operating near lambda = 1.53 microm.