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Vie have proposed a novel phase and amplitude spectra measurement system, which was named as "Dual-Heterodyne Mixing Method." The experimental demonstration is presented by 12.5 Gbps BPSK signal detection by 1/63 low-speed detector circuits.
A VIPA installed optical interferometer for scanless profilometry is proposed by displaying the applied delay time to a line-image sensor. The delay time was carried on spatially separated combs generated by the VIPA.
Novel method of the relative phase detection between optical longitudinal modes has been proposed. It was applied for a high-speed signal sensing with a high resolution amplitude measurement under the principle of time-space conversion.
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