We report the discovery of a quantization of the separation between phase-locked soliton pairs that is related to the radiation waves known as Kelly sidebands, in a passively mode-locked fiber ring laser. Our numerical simulations that predict this phenomenon have been confirmed by our experimental results.
© 2003 Optical Society of America
J. M. Soto-Crespo, Nail Akhmediev, Ph. Grelu, and F. Belhache, "Quantized separations of phase-locked soliton pairs in fiber lasers," Opt. Lett. 28, 1757-1759 (2003)