Abstract

We report an all-normal dispersion femtosecond laser based on large-mode-area Yb-doped photonic crystal fiber. Self-starting mode-locked pulses are obtained with an average power of $12\mathrm{W}$ at $84\mathrm{MHz}$ repetition rate, corresponding to $140\mathrm{nJ}$ of chirped pulse energy. These are dechirped to a near transform-limited duration of $115\mathrm{fs}$. Experimental results are consistent with numerical simulations of dissipative soliton intra-cavity pulse evolution, and demonstrate scaling of $100\mathrm{fs}$ pulses to megawatt peak powers.

© 2010 Optical Society of America

Sub-80 fs dissipative soliton large-mode-area fiber laser

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