Optical Fiber Laboratory
Leonid Liokumovich
Head of the Lab
8 (921) 906-25-45

Our Research

The scope of the conducted research and development activities includes optical fiber devices and systems, fiber optic sensing approaches
Optical fibers
  • Physical processes of light propagation in optical fibers
  • Fiber optic interferometric devices and systems, demodulation of interference signals
  • Fiber-optic sensors of various physical quantities based on different interrogation principles: intensity-based, phase-based, polarization, based on intermode interference, fiber Bragg gratings; methods for optical fiber sensors multiplexing
OTDR technologies
  • Distributed and quasi-distributed optical fiber sensors based on OTDR technologies
  • Development of quantum optical techniques for optical fiber sensors interrogation

Lab Staff

Leonid Liokumovich
Scopus ID ORCID Researcher ID Research Gate
Oleg Kotov
Scopus ID ORCID
Andrei V. Medvedev
Scopus ID ORCID Research Gate
Nikolai A. Ushakov
Scopus ID ORCID Researcher ID Research Gate
PA
Aleksandr Petrov
Scopus ID
Aleksandr Markvart
Scopus ID ORCID Researcher ID Research Gate
Valentina Temkina
Scopus ID ORCID Researcher ID Research Gate

Selected Publications

Signal Processing Approach for Spectral Interferometry Immune to $\lambda$ /2 Errors
N. A. Ushakov and L. B. Liokumovich
2019
Pub link
Signal detection algorithms for interferometric sensors with harmonic phase modulation: miscalibration of modulation parameters
10.1364/AO.56.007960
Liokumovich, L., Muravyov, K., Skliarov, P., & Ushakov, N.
2018
Open access
Signal detection algorithms for interferometric sensors with harmonic phase modulation: distortion analysis and suppression
10.1364/AO.56.007960
Liokumovich, L., Medvedev, A., Muravyov, K., Skliarov, P., & Ushakov, N.
2017
Open access
Multiplexed Extrinsic Fiber Fabry-Perot Interferometric Sensors: Resolution Limits
10.1109/JLT.2015.2396201
Ushakov, N. A., & Liokumovich, L. B.
2015
Pub link
Enhancing the resolution limits of spectral interferometric measurements with swept- wavelength interrogation by means of a reference interferometer
10.1364/AO.54.006029
Ushakov, N. A., Markvart, A. A., & Liokumovich, L. B.
2015
Open access
Measurement of dynamic interferometer baseline perturbations by means of wavelength-scanning interferometry
10.1117/1.OE.53.11.114103
Ushakov, N., & Liokumovich, L.
2014
Open access
Resolution limits of extrinsic Fabry–Perot interferometric displacement sensors utilizing wavelength scanning interrogation
10.1364/AO.53.005092
Ushakov, N. A., & Liokumovich, L. B.
2014
Open access

Postgraduate courses

  • Demodulation of optical fiber interferometric signals in case of auxiliary phase modulation of interferometric signal
  • Improvement of resolution and sensing abilities of sensors interrogated by means of spectral interferometry
  • Optical fiber interferometry with sensing elements multiplexing based on OTDR approach
  • Polarization fading in optical fiber interferometers and its suppression
  • Improvement of linearity and stability of multimode optical fiber interferometers response
  • Control over mode power distribution in multimode optical fibers and development of methods for regular evolution of propagating mode number
  • Development of sensing systems based on intermode interference in multimode optical fibers
  • Application of quantum optics for improvement of resolution and accuracy of optical fiber interferometric sensors
  • Analysis of attainable measurement resolution and accuracy as well as features of optical fiber sensors design and signal processing methods in case of smartphone-based interrogation
  • Novel methods of biomedical signals processing and registration with the use of fiber-optic interferometric sensors

Grants

  • Fiber optic interferometric devices for noninvasive blood glucose monitoring
  • Physical-mathematical model of optical fiber intermode interferometers signals in case of various simultaneous perturbations and spectral interferometric interrogation
  • Fundamental research of physical processes of coherent radiation propagation in multimode optical fiber interferometer and methods for registration and processing of intermode interference signals for development of innovative statistical model and novel high efficient sensors of various physical quantities (temperature, pressure, vibrations, deformations)
  • Research of physical processes and analysis of signals in multi-frequency fiber OTDR systems for Technology company Schlemberger
  • Research of characteristics of quantum rotation sensor with the use of mathematical modeling on a hybrid supercomputing platform and experimental verification
    • Development of high-precision fiber-optic sensors of electric field for optical measurement transformers, supported by program State tasks for universities
    • Improvement of resolution and accuracy of spectral interferometric measurements