Widely Tunable Ultra-Narrow-Linewidth Nearly Transform-Limited Dissipative Soliton Generation at Telecom Band

We successfully demonstrate a widely all-parameter-tunable ultra-narrow-linewidth nearly transform-limited mode-locked erbium-doped fiber laser. Pulse-width-adjustable (100-150 ps) low-repetition-rate (~2 MHz) dissipative solitons are generated over the pulse-breakup-free wavelength tuning range of 34.3 nm (1529.3-1563.6 nm).