Influence of SA recovery time on orthogonally polarized dissipative solitons
Polarization is a crucial factor in shaping and stabilizing mode-locking pulses.We develop an or-thogonally polarized numerical modeling of passive mode-locked graphene fiber lasers for generating ortho-gonally polarized dissipative solitons(DSs).The focus is on analyzing the influence of orthogonal polariza-tion in this net-normal dispersion birefringent cavity caused by the polarization-dependent graphene mi-crofiber saturable absorber.The research results demonstrate that the recovery time of such saturable ab-sorbers significantly affects the characteristics of the orthogonally polarized DSs'output pulses,including en-ergy,pulse width,time-bandwidth product,and chirps.Results show that its recovery time of 120 fs is optim-al,producing two orthogonally polarized narrow dissipative soliton pulses with large chirps of about 7.47 ps and 8.06 ps.This has significant implications for the development of compact,high-power,polarized dissip-ative soliton fiber laser systems.
orthogonal polarizationpassive mode-lockingnet-normal dispersionrecovery time
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