We demonstrate experimental generation of multi-bound solitons of up to sextuple in an active FM
Received 16 October 2008 mode-locked fiber ring laser operating under power saturation in the locking state. The ring laser consists
Received in revised form 27 February 2009 of two booster optical amplifiers operating in saturation regime, an electro-optic phase modulator driven
Accepted 27 February 2009
by a sinusoidal electrical wave and a length of dispersive fiber. The periodic phase modulation generates
phase chirp of the generated lightwaves in the ring laser. The chirped phase state plays an important role
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