We demonstrate the possibility of broadening the emissions spectra of superfluorescent fiber lasers by combinations of different kinds of single-mode doped silica fibers. We obtained an optical bandwidth of more than 70 nm (FWHM) between 1030 and 1100 nm using Nd:Cs, Nd:Ge, and Yb-doped fibers. The total output power measured from the single-mode fibers was more than 100 μW in a single-pass configuration.
Tobias Kippenberg, Maxim Karpov, Hao Song, Xinzhou Su
Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu, Junqiu Liu, Yang Liu, Jijun He
Luc Thévenaz, Zhisheng Yang, Alejandro Dominguez Lopez