Robust Phase Noise Power Spectral Density Estimation Using Multi-Laser Interferometry

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Publication Date: 7/1/2025

Event: OECC/PSC 2025

Reference: ThC1-2: 1-3, 2025

Authors: Ezra Ip, NEC Laboratories America, Inc.; Yue-Kai Huang, NEC Laboratories America, Inc.; Fatih Yaman, NEC Laboratories America, Inc.; Ting Wang, NEC Laboratories America, Inc.

Abstract: We jointly estimate the phase noise power spectral densities of multiple lasers using interferometry between different combinations of laser pairs. We demonstrate a beat-frequency trackingmethod that allows under-sampling of interferometric products without phase jumps.

Publication Link: https://ieeexplore.ieee.org/document/11111026