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Title:Načrtovanje transimpedančne stopnje za ojačenje izmeničnih optičnih signalov
Authors:ID Radulović, Sandra (Author)
ID Njegovec, Matej (Mentor) More about this mentor... New window
ID Nikl Hutinski, Emanuel (Comentor)
Files:.pdf VS_Radulovic_Sandra_2025.pdf (1,66 MB)
MD5: DBCF64CB104FDF5831F331BF251767FD
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Optične vlakenske senzorske aplikacije, ki temeljijo na Fabry-Perotovem interferometru, zahtevajo detekcijo majhnih dinamičnih sprememb optične poti, ki izhajajo iz sprememb lomnega količnika ali dolžine resonatorja. Demodulacija optičnih signalov pogosto poteka v okolici kvadraturne točke, kjer majhne spremembe merjene veličine povzročajo majhne variacije odbite optične moči, ki so pripete na visoko enosmerno komponento. Za učinkovito ojačenje izmeničnih signalov v območju od 1 Hz do 10 kHz je potreben transimpedančni ojačevalnik z nizkim šumom in visokim ojačenjem, ki zavira enosmerno komponento ter omogoča združljivost z AD pretvorniki. Cilj je načrtovanje in analiza več nizkošumnih transimpedančnih rešitev, ki optimizirajo razmerje signal-šum in omogočajo natančno detekcijo dinamičnih sprememb v interferometru.
Keywords:Optične vlakenske senzorske aplikacije, kvadraturna točka, transimpedančni ojačevalnik
Place of publishing:Maribor
Publisher:[S. Radulović]
Year of publishing:2025
PID:20.500.12556/DKUM-91713 New window
UDC:621.375.029:681.586.5(043.2)
COBISS.SI-ID:228947971 New window
Publication date in DKUM:03.03.2025
Views:0
Downloads:11
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:29.01.2025

Secondary language

Language:English
Title:Design of transimpedance amplifier for amplification of alternating optical signals
Abstract:Optical fiber sensor applications based on the Fabry-Perot interferometer require the detection of small dynamic changes in the optical path, resulting from variations in the refractive index or resonator length. Detection occurs near the quadrature point, where minor changes cause variations in reflected optical power, which are superimposed on a high DC component. To efficiently amplify the AC signals in the frequency range of 1 Hz to 10 kHz, a low-noise, high-gain transimpedance amplifier is required, capable of suppressing the DC component while ensuring compatibility with ADCs. The objective is to design and analyze several low-noise transimpedance solutions that optimize the signal-to-noise ratio and enable precise detection of dynamic changes in the interferometer.
Keywords:Optical fiber sensor applications, quadrature point, transimpedance amplifier


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