[ThC1] Novel Fiber Sensing Technologies

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[ThC1-2] Robust Phase Noise Power Spectral Density Estimation Using Multi-Laser Interferometry

○Ezra Ip¹, Yue-Kai Huang¹, Fatih Yaman¹, Ting Wang¹ (1.NEC Laboratories America)

Keywords:

Fiber sensing application incl. environmental monitoring using optical network

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 tracking method that allows under-sampling of interferometric products without phase jumps.