Modeling and Technologies of Ultrafast Fiber Lasers

Numerical modeling of fiber lasers with long and ultra-long ring cavity

“…Aiming at the analysis of the key physical effects rather than on a laser specifics, in this work we consider generic laser systems that can be well described by the scalar model [19][20][21][22][23][24][25][26][27][28][29]. The ring cavity consists of a 2m-long active Er-doped fiber, passive fiber of variable length, polarization-independent saturable absorber and an output coupler.…”

“…[2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] and references therein). Fiber lasers provide a possibility for use of a range of nonlinear mechanisms in building and shaping the radiation [20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Nonlinear effects make numerical modelling of fiber lasers a challenging problem.…”

“…Recently, numerical modeling was applied to analyze properties of long fiber lasers passively mode-locked by the nonlinear polarization evolution with the cavity length from about 100 m [13][14][15] up to 8 km [3]. In this paper we focus on a scalar model of polarization-independent saturable absorber [19][20][21][22][23][24][25][26][27][28][29] and present simulation results for pulse generation in fiber laser with long cavity length up to 2 km. Our goal here is to highlight impact on a modeling of initial field distribution (noise versus smooth small amplitude seeding field) and raise of modeling challenges with a growing cavity length.…”

Dissipative solitons in fiber lasers

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