Extended Data Fig. 5: Experimental set-ups used to characterize the soliton lidar engine and soliton locking. | Nature

Extended Data Fig. 5: Experimental set-ups used to characterize the soliton lidar engine and soliton locking.

From: Monolithic piezoelectric control of soliton microcombs

Extended Data Fig. 5

a, Experimental set-up for the synchronous scan of the laser frequency and the microresonator resonance, using the feed-forward scheme. b, Experimental set-up used to characterize the in-loop phase noise of the beat signal between line no. −1 of the microcomb and line no. −13 of the EO comb. QPSK, quadrature phase shift keying; DSO, digital storage oscilloscope; MZM, Mach–Zehnder modulator; PNA, phase noise analyser.

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