Optical synthesis of soliton molecules using composite filtering effects in a fiber laser

The manipulation of coherent multipulse generations is a promising ultrafast pulse technique. In this study, we experimentally obtain for the first time the synthesis of various soliton molecules (SMs) with different pulse spacings and phases based on composite filtering effects in a fiber laser. The composite filtering functions are constructed by multiplying the nonlinear-polarization-rotation (NPR)- and Lyot-based filtering effects to achieve four processes from the coexistence, incoherent interaction, and weakly coherent interaction of two pulses to the generation of an SM. Theoretical and experimental analyses demonstrate that the manipulation of synthesizing SMs is due to the composite filtering functions. Our research provides a novel method for the manipulation of SM generation in a noise-driven nonlinear dissipative system, which has significant applications in the fields of pulse coding and coherent pulse detection.

Automated summary

In this study, we experimentally synthesized various soliton molecules (SMs) with different pulse spacings and phases using composite filtering effects in a fiber laser. The manipulation of synthesizing SMs is achieved through the composite filtering functions. Our research provides a novel method for the manipulation of SM generation in a noise-driven nonlinear dissipative system, which has significant applications in the fields of pulse coding and coherent pulse detection.