Dispersionless slow light with 5-pulse-width delay in fibre Bragg grating
The excitation of gap solitons in a 30 cm fibre Bragg grating using 0.68 ns pulses, which emerge with a tunable delay of up to 3.2 ns, corresponding to almost five pulse widths, and without broadening, are observed. This delay is an improvement by a factor of 2 from previous experiments.