A D-shaped fiber is coated with a new two-dimensional nanomaterial,violet phosphorus(VP),to create a saturable absorber(SA)with a modulation depth of 3.68%.Subsequently,the SA is inserted into a fiber laser,enabling s...A D-shaped fiber is coated with a new two-dimensional nanomaterial,violet phosphorus(VP),to create a saturable absorber(SA)with a modulation depth of 3.68%.Subsequently,the SA is inserted into a fiber laser,enabling successful generation of dark solitons and bright–dark soliton pairs through adjustment of the polarization state within the cavity.Through further study,mode-locked pulses are achieved,proving the existence of polarization-locked vector solitons.The results indicate that VP can be used as a polarization-independent SA.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.62005212 and 12075190)the Young Talent Fund of University Association for Science and Technology in Shaanxi,China(Grant No.20210112)+2 种基金the New Star Project of Science and Technology of Shaanxi Province(Grant No.2022KJXX-69),the Fund for Outstanding Young Talents of China Academy of Space Technology(Xi’an)(Grant No.Y21-RCFYJQ1-03)the Young Elite Scientists Sponsorship Program by CAST(Grant No.2022QNRC001)the Open Foundation of State Key Laboratory of Transient Optics and Photonics(Grant No.SKLST202207).
文摘A D-shaped fiber is coated with a new two-dimensional nanomaterial,violet phosphorus(VP),to create a saturable absorber(SA)with a modulation depth of 3.68%.Subsequently,the SA is inserted into a fiber laser,enabling successful generation of dark solitons and bright–dark soliton pairs through adjustment of the polarization state within the cavity.Through further study,mode-locked pulses are achieved,proving the existence of polarization-locked vector solitons.The results indicate that VP can be used as a polarization-independent SA.
