Sökning: "Optical time domain reflectometer"

Hittade 3 uppsatser innehållade orden Optical time domain reflectometer.

  1. 1. Distributed Temperature Sensing Using Phase-Sensitive Optical Time Domain Reflectometry

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Simon Ek; [2020]
    Nyckelord :Applied physics; Distributed optical fiber sensing; Rayleigh scattering; OTDR; phase-OTDR; Temperature; Refractive index; Strain; Correlation; RISE; Single mode fiber; SMF; Tillämpad fysik; Distribuerad optisk fibermätning; Rayleigh-spridning; OTDR; phase-OTDR; Temperatur; Brytningsindex; Töjning; RISE; Korrelation; Singelmodfiber; SMF;

    Sammanfattning : This thesis explores and evaluates the temperature measuring capabilities of a phase-sensitive optical time-domain reflectometer (φ-OTDR), which exploits Rayleigh backscattering in normal single mode optical fibers. The device is constructed and its setup explained, and a protocol for making temperature measurements with it is developed. LÄS MER

  3. 2. High speed communication

    H-uppsats,

    Författare :Robert Legeza; Johan Bodin; [2019-07-03]
    Nyckelord :Grundläggande vetenskaper; Hållbar utveckling; Informations- och kommunikationsteknik; Elektronik; Basic Sciences; Sustainable Development; Information Communication Technology; Electronics;

    Sammanfattning : This master thesis examines the problems that occur for high speed serial communication. The thesis focus on serial transmission through backplane, coaxial cable and optical fiber. Experiments using RocketIOTM GTP and GTX transceivers are performed at data rates of up to 5 Gbit/s. LÄS MER

  4. 3. Optical Time Domain Reflectometer based Wavelength Division Multiplexing Passive Optical Network Monitoring

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :AGEREKIBRE GETANEH WORKALEMAHU; [2012]
    Nyckelord :Optical time domain reflectometer; fault detection and localization; arrayed waveguide grating;

    Sammanfattning : This project focuses on wavelength division multiplexing passive optical network (WDM-PON) supervision using optical time domain reflectometer (OTDR) for detection and localization of any fault occurred in optical distribution network. The objective is to investigate the impact of OTDR monitoring signal on the data transmission in the WDM-PON based on wavelength re-use system, where the same wavelength is assigned for both upstream and downstream to each end user. LÄS MER