Abstract
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.
基金项目
国家自然科学基金(62005212)
国家自然科学基金(12075190)
Young Talent Fund of University Association for Science and Technology in Shaanxi,China(20210112)
New Star Project of Science and Technology of Shaanxi Province(2022KJXX-69)
Fund for Outstanding Young Talents of China Academy of Space Technology(Xi'an)(Y21-RCFYJQ1-03)
Young Elite Scientists Sponsorship Program by China Association for Science and Technology(2022QNRC001)
Open Foundation of State Key Laboratory of Transient Optics and Photonics(SKLST202207)