Essays about: "fiber bragg gratings"
Showing result 1 - 5 of 9 essays containing the words fiber bragg gratings.
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1. Simultaneous measurement and discrimination of temperature and strain in distributed fiber optical systems with fiber Bragg gratings
University essay from Uppsala universitet/Fasta tillståndets fysikAbstract : This master thesis deals with simultaneous measurement and discrimination of temperature and strain using fiber Bragg gratings(FBGs). Saab Avionics is seeking for a further development of the overheat detection system that gives a warning when a heat leakage is detected. READ MORE
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2. Transmission characterization of fiber Bragg gratings arrays for intracavity spectral control of a 1.5 micrometer fiber laser
University essay from KTH/Skolan för teknikvetenskap (SCI)Abstract : This thesis aims to investigate whether a fiber Bragg grating array (FBGA) can be designed to reduce the bandwidth of light from a 1.5 µm fiber laser while the distances between the fiber Bragg gratings are in the 10-20 cm range. READ MORE
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3. Periodic and Non-Periodic Filter Structures in Lasers
University essay from KTH/Matematik (Avd.)Abstract : Communication using fiber optics is an integral part of modern societies and one of the most important parts of this is the grating filter of a laser. In this report we introduce both the periodic and the non-periodic grating filter and discuss how there can be resonance in these structures. READ MORE
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4. Optical Fiber sensing of acoustic waves using overlapping FBGs
University essay from Mittuniversitetet/Institutionen för elektronikkonstruktionAbstract : The objective of this thesis was to investigate if an optical fiber sensing method with the use of two overlapping fiber Bragg gratings to measure Lamb wave $S_0$ modes in a steel plate, and how it would compare to traditional PZT transducers. A solution was proposed where the use of an optical fiber sensing system was built and took advantage of the strain dependence of a fiber Bragg grating mounted to a steel plate. READ MORE
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5. 3D-printed temperature sensors based on Fiber Bragg Gratings
University essay from KTH/Skolan för teknikvetenskap (SCI)Abstract : Fiber Bragg Gratings is a type of optical sensor used to measure temperature in many different fields. They have many advantages in relation to standard electric thermometers. READ MORE