Projects:

  1. DGS-13 - Two Channel Fiber-Optic Gyroscope
  2. GS-13P - Gyro System for Platform Investigation
  3. DFOSI - Distributed Fiber-Optic Sagnac Interferometer
  4. FOSEI - Fiber-Optic Sagnac for Elements Investigation
  5. FOSE - Fiber-Optic Sagnac Ellipsometer
  6. FOTET - Fiber-Optic Taper Elements Technology
  7. LQLI - Liquid Crystal Layer Investigation
  8. SPRS - Speckle Pattern Recognise System
  9. FOPA - Fiber-Optic Polarization Analyzer
  10. FOIPA - Fiber-Optic Interferometric Polarization Analyzer
  11. FORS-T - Fiber-Optic Rotational Seismometer Tester
  12. FORS-II - Fiber-Optic Rotational Seismometer
  13. FORS-T - presentation at 2003 EGS-AGU-EUG Joint Assembly (Nice, France)

DGS-13

A prototype of double-channel fiber-optic gyroscope for application in auto-topography system.
Main parameters:
  • sensitivity - 0.3 deg/h,
  • drift - 5 deg/h,
  • dynamic range - up to 100 deg/s
Authors: L.R. Jaroszewicz, A. Ostrzy¿ek, M. Szustakowski, R. ¦wi³³o

GS-13P

A FOG-based system for experimental investigation of rotation move quality of slow-speed platforms.
Main parameters:
  • sensitivity - 0.2 deg/h
  • resolution - 0.3 deg/h
  • max rate - 50 deg/s
  • bandwidth - 100 Hz
  • investigation method - FFT analysis
Authors: L.R. Jaroszewicz, A. Szelmanowski, R. ¦wi³³o

DFOSI

A fundamental research of distributed fiber-optic sensor based on Sagnac interferometer.The work has been directed on construction of object security system with a possibility of disturbance localisation by analysis of disturbance signal amplitude - Polish Patent PL173753B1, PL172501B1.
Authors: L.R. Jaroszewicz, A. Kie¿un, R. ¦wi³³o

FOSEI

Based on fiber-optic Sagnac interferometer, system for automatic measurement of frequency characteristics of fiber-optic phase and polarisation modulator, and small amplitude vibration elements - Polish Patent PL174921B1.
Main parameter:
  • frequency range - 0.1 Hz - 120 kHz
  • measurement resolution - 1 Hz
Authors: L.R. Jaroszewicz, A. Kie¿un, R. ¦wi³³o

FOSE

Based on fiber-optic Sagnac interferometer, in-line ellipsometer for determination SOP in optical fiber - Polish Patent PL177396B1.
Main parameter:
  • measured time: 10 - 100 ms 
  • ellipticity accuracy - 0.1 deg
  • azimuth accuracy - 0.03 deg
  • stability - 0.5 deg
Authors: L.R. Jaroszewicz, A. Kie¿un, R. ¦wi³³o

FOTET

Set-up for manufacturing special in-line fiber-optic elements based on biconical taper technology. Mainly: non-standard fiber-optic polarizer (Polish Patent PL283892B1), coupler, active polarizer switch, etc.
Main parameter:
  • element wavelength - 500 - 1350 nm
  • element losses - < 1-3 dB 
  • polarizer extinction - > 30 dB
  • coupler ratio - 20/80% - 50/50%
Authors: R.Janiszewski, L.R. Jaroszewicz, R. ¦wi³³o

LQLI

Set-up for investigation of liquid crystal waveguide parameters- mainly refractive index distribution in electrical driven layer - Polish Patent PL177565B1.
Main parameter:
  • wavelength - 635, 680, 850,1350 nm
  • investigated materials - NLC, FLC, A-FLC
  • measurement error - 5-10% 
Authors: L.R. Jaroszewicz, A. Kie¿un, A. Walczak, E. Nowinowski-Kruszelnicki, R. ¦wi³³o

SPRS

Few-mode fiber-optic sensor of external force with a feature extractor based on computer simulated holographic element and a classifier. For classification the formalism of rough set theory is used.
Authors: K.A. Cyran, L.R. Jaroszewicz

FOPA

The in-line fiber-optic polarization analyzer enabling measurement of full polarization parameters of light propagated in optical fiber in real time (about 100 ms). Polarimeter configuration basing on standard single-mode fiber and linear phase transducer on pzt.
Main parameters:
  • SOP parameter resolution - 0.5 deg,
  • Global SOP accuracy- 4.8 deg,
  • DOP measurement range - 0.1 - 1.0
    Authors: L.R. Jaroszewicz, P. Maræ, A. Kie¿un

    FOIPA

    A new type in-line fiber-optic polarization analyzer basing on a Sagnac interferometer configuration gives the possibility to detect the full polarization changes in real time.
    Main parameters:
  • SOP parameters resolution - 0.015 deg,
  • SOP parameters precision (RMS)- 0.02deg,
  • DOP measurement range - 0.01 - 1.0
    Authors: L.R. Jaroszewicz, P. Maræ, R. ¦wi³³o

    FORS-T

    A prototype of fiber-optic rotational seismo- meter used for testing of a new kind of TAPS (two antiparallel pendulum seismometer). The system connected with investigatinon of the seismic rotational events.
    Main parameters:
  • loop parameters - R=0.1m, L=400m (HiBi)
  • sensitivity - 1.11 deg/h,
  • bandwith - 20 Hz,
  • signal sampling - 200 Hz
    Authors: L.R. Jaroszewicz, Z. Krajewski, R. ¦wi³³o, L. Solarz

    FORS-II

    A prototype of fiber-optic rotational seismo- meter designs for detection of the seismic rotational waves (SRW).FORS-II based on depolarized FOG shows different SRW velocity than classical seismic waves.
    Main parameters:
  • sensor loop - D=0.63m, L=11.2 km (SSMF)
  • sensitivity - 4.27E-8 rad/s,
  • bandwith - 20 Hz,
  • signal processing - standard of KST
    Authors: L.R. Jaroszewicz, Z. Krajewski, R. ¦wi³³o