Nanotube-mode-locked fiber laser delivering dual-wavelength conventional and dissipative solitons

We propose a novel passively nanotube-mode-locked fiber laser, which consists of a linear oscillator generating conventional solitons (CSs) and a ring oscillator delivering dissipative solitons (DSs) simultaneously. The CSs exhibit distinct spectral sidebands with a bandwidth of similar to 0.53 nm and duration of similar to 5.47 ps, while the DSs have a quasi-rectangular spectral profile with a bandwidth of similar to 11.9 nm. The pulse duration of chirped DSs is similar to 5.30 ps and can be further compressed to similar to 0.55 ps external to the cavity. The experimental observations are well confirmed by numerical results. This compact all-fiber laser delivering two different types of ultrafast soliton simultaneously is quite cost-efficient for practical applications, such as optical communications, nonlinear optics and ultrafast optics.