Pulse shrinkage of dissipative-soliton-resonance pulses with or without period doubling

Liu C., Klimczak M., Buczyński R., Kong J., Cheng L., Komarov A., Tang X., Tang M., Zhu H., Zhao L.

Optics Communications

512, 2022, art. 128071, 10.1016/j.optcom.2022.128071

Dissipative soliton resonance (DSR) is a promising operation regime in fiber lasers where unlimited pulse energy boost is expected. However, several phenomena classified as anti-DSR performance were reported recently. Here pulse shrinkage of DSR pulses is investigated in a fiber laser. By setting a central-wavelength-drifting Gaussian filter, after DSR performance of pulse broadening with increasing gain, the pulse shrinkage occurs when the gain continues to increase. A central-wavelength-drifting bimodal filter can also achieve pulse shrinkage. In addition, pulse shrinkage together with period doubling can be observed by changing the initial settings.