1000–1400-nm partially mode-locked pulse from a simple all-fiber cavity

Abstract

We demonstrate a partially mode-locked pulse laser delivering ultra-wideband optical spectrum, i.e., 1000-1400 nm at 30 dB, from a simple all-fiber short cavity with all-normal dispersion. Examined by both real-time temporal and spectral analyzers, the partially mode-locked pulse exhibits double-scale noise-like characteristics-the fast L-shaped mode-locked pulse modulated by slow free-running Q-switched envelopes. Moreover, the statistical analysis as a function of its optical bandwidth shows that the spectral tuning does not compromise the temporal stability, but affects the pulsing periodicity. It is believed that the wide spectrum of knowledge obtained here would enrich the field of noise-like pulse, such as being beneficial to the rogue wave generation.

Roadmap on optical rogue waves and extreme events

“…Frozen Akhmediev breathers in dispersion varying fibers 19 10. Accelerated rogue solitons triggered by background radiation 21 11. Extreme optical pulses in semiconductor lasers 23 12.…”

Ultrafast spectral dynamics of dual-color-soliton intracavity collision in a mode-locked fiber laser

“…As the remarkable signature of many nonlinear optical systems, optical solitons, localized solitary waves stabilized by the delicate interplay between dispersive and nonlinear effects, have attracted numerous research attention. 1,2 Thanks to their distinctive features, a wealth of sophisticated soliton dynamics in resonant cavities has been extensively explored, [3][4][5][6][7][8] which includes rogue waves, 9,10 soliton explosions, [11][12][13] multiplesoliton generation, 14 soliton molecules, 15,16 and soliton rains. 17 In addition to the single-color soliton, mode-locking can also be simultaneously achieved at multiple distinct spectral bands, [18][19][20][21][22][23] which creates coexisting multi-color solitons.…”