Passive synchronization between a self-similar pulse and a bound-soliton bunch in a two-color mode-locked fiber laser

Abstract

We report the first (to our knowledge) experimental observation of passive synchronization between a $1.03\mu \mathrm{m}$ self-similar pulse and a $1.56\mu \mathrm{m}$ bound-soliton bunch in a two-color mode-locked fiber laser. The self-similar pulse can form an effective potential well of several picoseconds to trap the copropagating bound solitons in the shared-fiber section. Such synchronization mechanism is supported by the experimental evidence of smaller time separation between the bound solitons under synchronization. In addition, the self-similar pulse and bound solitons can still remain locked under the periodic collision of another $1.56\mu \mathrm{m}$ unlocked pulse train.

© 2009 Optical Society of America

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