Abstract
Delivery of high peak-power femtosecond pulses with fibers is constrained by nonlinear distortions accumulated during pulse propagation. We address this problem with a novel, to our knowledge, fiber schematic, where the pulse propagates in a small but highly dispersive (record value of ) medium, enabled by transmission in the mode of a few-mode fiber. The novel fiber yields a low dispersion-to-nonlinear-length ratio (due to its large dispersion) despite its small , hence enabling mitigation of nonlinearities. This enables fiber delivery of distortion-free , , and pulses—an order-of-magnitude improvement over single-mode fibers of similar .
© 2005 Optical Society of America
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