Light vector analysis technology and device with time domain resolution capability

The invention discloses an optical vector analysis technology and device with a time domain resolution capability, and relates to the field of optical device frequency response measurement. Aiming at the problems of a small measurement range and a large measurement background noise in the prior art, the optical vector analysis technology with the time domain resolution capability is provided, an asymmetric optical double-sideband signal is used as a measurement signal to expand the measurement range, and a photoelectric oscillator is used as a microwave source to reduce the background noise. According to the invention, a single-frequency optical signal is broadened into a low-coherence optical signal, the low-coherence optical signal is used as an optical carrier, an optical vector analysis method based on asymmetric optical double-sideband modulation is used to carry out frequency response measurement on an optical link comprising a plurality of optical devices to be measured, and superposed frequency respon