Numerical Simulation Results (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Numerical Simulation Results

Caption

a, Pulse evolution of the 635 nm mode-locked fibre laser. The stable mode-locked pulse is built up in the cavity with increasing number of round trips. b, The corresponding spectral evolution. As the number of round trips increases, the optical spectrum becomes narrower, and the variation tendency of the spectral bandwidth is opposite to that of the pulse duration. c, Pulse temporal profiles (solid) and the corresponding frequency chirps (dashed). d, Optical spectra of the 635 nm mode-locked fibre laser (inset: spectra on a linear scale). The spectra exhibit an ultranarrow spectral bandwidth (<0.1 nm) around 635 nm and a triangular profile with steep edges on the logarithmic scale.

Credit

by Jinhai Zou, Chuchu Dong, Hongjian Wang, Tuanjie Du, and Zhengqian Luo

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