Fig. 2: Comparison between typical narrowband state generation system and broadband state generation system in this work. | Nature Communications

Fig. 2: Comparison between typical narrowband state generation system and broadband state generation system in this work.

From: Broadband generation and tomography of non-Gaussian states for ultra-fast optical quantum processors

Fig. 2

a Narrowband system based on optical parametric oscillator. b Broadband state generation and measurement based on optical parametric amplifier. OPO Optical parametric oscillator, LO Local oscillator, FC Filtering cavity, SNSPD Superconducting nanostrip photon detector, OPA Optical parametric amplifier, HD Homodyne detector, IBPF Interference bandpass filter, VBG Volume Bragg grating, FBG Fiber Bragg grating. See Methods for detailed parameters.

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