Abstract

A method of generating multiple solitons with controllable separation is proposed by injecting the dissipative soliton (DS) and conventional soliton (CS) into the polarization-maintaining fiber (PMF), respectively. The soliton separation can be adjusted subjectively from 12 to 28 ps, corresponding to PMF lengths from 10 to 24 m. Multiple solitons consisting of three, four, five, and six solitons can be observed at pump powers of 480, 550, 610, and 700 mW. DS’s average single-pulse energy can increase from 20.4 to 40.7 pJ, while the average single-pulse energy of CS decreases from 29.3 to 13.7 pJ. The experimental results can contribute to the further understanding of the dynamics of multiple solitons.

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