Abstract
We experimentally demonstrate a soliton wavelength shift of 145 nm through a concatenated pair of higher-order-mode fibers (HOMFs). An input pulse at 1030 nm is used to produce a soliton at 1175 nm that has 3.5 nJ energy and 55 fs duration. Previously, the mode-crossing wavelength of the HOMF limited the range of wavelengths over which soliton shift could be achieved. In this letter, we use two fibers to extend the shifting range beyond the mode-crossing wavelengths of both fibers. Our experiment demonstrates the feasibility of combining HOMFs of different dispersion profiles to provide another degree of freedom for dispersion control.
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