Synchronized multi-wavelength ultrafast pulses generation by single frequency laser seeded Raman fiber amplifier

Datas of wavelength and repetition-rate flexible femtosecond pulse generation from gain-switched diode pumped Raman fiber amplifier.Fig.1:Schematic of the SF-CW seeded Raman fiber amplifier to generate ultrafast pulses operating at 1065 nm, 1121 nm and 1178 nm.Fig.2. Pulse measurement data at the output port.Fig.3 Repetition Rate characteristics of 1065 nm and 1121 nm pulse.Fig.4 (a) Spectral evolution versus the pulse energy at Point A; (b) Energy ratio of the 1065 nm pump pulse, 1121 nm Raman pulse and 1178 nm ASRE pulse at Point A; (c) 1178 nm ASRE pulse energy at Point A and B. Fig.5 Characteristics of the 1178 nm pulse with the 1178 nm ASRE peak power of 300 and 120 mW. (a) ACF; (b) spectrum; and (c) pulse train for 300 mW ASRE. (d) ACF; (e) spectrum; and (f) pulse train for 120 mW ASRE.Fig.6 Spectral evolution versus the GSD repetition rate from 20 MHz to 50 MHz with pulse energy keeping constant.