Nonlinear propagation of light pulses can excite dispersive waves anchored at frequencies determined by the chromatic dispersion curve. In this work, conditions enabling dispersive-wave self-frequency shift over distance are analytically derived in normal regime. Importantly, novel, to best our knowledge, scenario is not found solving complex dynamics pulse, but studying evolution nonlinear and...

A novel method of optical Nyquist pulse generation based on recirculating frequency shift loop (RFSL) is proposed and experimentally demonstrated. In this article, a large number flat phase-locked comb lines output from RFSL are used to synthesize pulse, which has ultra-narrow flexible tunable width. It the first time theoretically analyze condition by in detail. experiment, spectral continuous...