Mitigation of phase noise and Doppler-induced frequency offsets in coherent random amplitude modulated continuous-wave LiDAR

JT Spollard, LE Roberts, CS Sambridge… - Optics …, 2021 - opg.optica.org
We present a detailed analysis of techniques to mitigate the effects of phase noise and
Doppler-induced frequency offsets in coherent random amplitude modulated continuous …

Range-resolved interferometric signal processing using sinusoidal optical frequency modulation

T Kissinger, TOH Charrett, RP Tatam - Optics express, 2015 - opg.optica.org
A novel signal processing technique using sinusoidal optical frequency modulation of an
inexpensive continuous-wave laser diode source is proposed that allows highly linear …

Compact multifringe interferometry with subpicometer precision

KS Isleif, G Heinzel, M Mehmet, O Gerberding - Physical Review Applied, 2019 - APS
Deep-frequency-modulation interferometry combines optical minimalism with multifringe
readout. However, precision is key for applications such as optical gradiometers for satellite …

Deep frequency modulation interferometry

O Gerberding - Optics express, 2015 - opg.optica.org
Laser interferometry with pm/Hz precision and multi-fringe dynamic range at low frequencies
is a core technology to measure the motion of various objects (test masses) in space and …

Laser-frequency stabilization via a quasimonolithic mach-zehnder interferometer with arms of unequal length and balanced dc readout

O Gerberding, KS Isleif, M Mehmet, K Danzmann… - Physical Review …, 2017 - APS
Low-frequency high-precision laser interferometry is subject to excess laser-frequency-noise
coupling via arm-length differences which is commonly mitigated by locking the frequency to …

Experimental demonstration of deep frequency modulation interferometry

KS Isleif, O Gerberding, TS Schwarze, M Mehmet… - Optics …, 2016 - opg.optica.org
Experiments for space and ground-based gravitational wave detectors often require a large
dynamic range interferometric position readout of test masses with 1 pm/Hz precision over …

Compensation for the variable cyclic error in homodyne laser interferometers

P Hu, J Zhu, X Guo, J Tan - Sensors, 2015 - mdpi.com
This paper presents a real-time method to compensate for the variable cyclic error in a
homodyne laser interferometer. The parameters describing the quadrature signals of the …

Phase demodulation by frequency chirping in coherence microwave photonic interferometry

L Hua, X Zhu, S DeWolf, J Lei, Q Zhang… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
This article presents a signal processing method to demodulate the optical interference
phase of cascaded individual optical fiber intrinsic Fabry-Perot interferometric (IFPI) sensors …

Common-mode phase noise suppression with an open-loop differential phasemeter

A Dey, PG Sibley, J Wong, MB Gray… - Optics …, 2024 - opg.optica.org
We present direct differential phase recovery-an open-loop phasemeter topology for
differential optical interferometric measurements. The technique aims to remove common …

[HTML][HTML] Simulating tunable coherence for scattered light suppression in laser-interferometric gravitational wave detectors

D Voigt, A Lohde, O Gerberding - Applied Physics Letters, 2023 - pubs.aip.org
Ground-based gravitational wave detectors use laser interferometry to realize ultra-precise
displacement measurements between free-floating test masses to detect signals in the …