Figure 3 | Pulse-pumped soliton microcombs. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 3 | Pulse-pumped soliton microcombs.

Caption

Figure 3 | Pulse-pumped soliton microcombs. a, Experimental set-up. Left inset: optical spectrum of EO comb. PM: phase modulator; IM: intensity modulator; PS: phase shifter; WS: waveshaper; EDFA: erbium-doped fiber amplifier; BPF: band-pass filter; PD: photodetector; OSC: oscilloscope; PNA: phase noise analyzer; OSA: optical spectrum analyzer. b, Normalized transmitted power (red) and comb power selected by the BPF (blue) as a function of pump laser frequency tuning. c, Optical spectrum of the soliton microcomb. d, Tuning range of the EO comb repetition frequency for soliton generation. The measured comb power is shown as a color scale, plotted as a function of both laser frequency detuning and EO comb repetition frequency. e, Single-sideband phase noise of microwave source (blue solid line) and the repetition frequency of soliton microcomb (red solid line). Inset: electrical spectrum of the soliton repetition frequency (25.037 GHz).

Credit

Binbin Nie et al.

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