Abstract

We experimentally demonstrate fiber delivery of sub-30-fs pulses in the near-infrared range achieving 1.6 nJ at the output of a 2-m-long standard single-mode fiber, starting with 150 fs pulse duration at laser output and with a standard system. It results from the compensation of linear and nonlinear effects by a grism-based stretcher giving a pulse compression factor of 5, representing the best temporal, energetic, and tunable performance. We compare these results with the fiber delivery of nanojoule pulses changing the fiber for a 2-m-long large mode area one, giving similar results, but with a longer pulse duration. Then, we experimentally demonstrate the adaptation of the fibered setup to shape the spectrum in amplitude and phase at the fiber output with a shaping module placed before the fiber.

© 2014 Optical Society of America

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