We demonstrate propagation of 14-nJ femtosecond pulses through a large-mode-area, higher order mode fiber with an effective area of 2100 μm2. The pulses propagate stably in the LP07 mode of the fiber through lengths as long as 12 m.|We demonstrate propagation of 14-nJ femtosecond pulses through a large-mode-area, higher order mode fiber with an effective area of 2100 μm2. The pulses propagate stably in the LP07 mode of the fiber through lengths as long as 12 m.
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