Fiber Loop Ringdown Pressure Sensors for Wind Turbines

Kaya, Malik
Esentürk, Okan


Fiber loop ring down spectrometer optical based sensor for trace chemical detection
Yolalmaz, Alim; Esentürk, Okan; Danışman, Mehmet Fatih; Hanifehpour, Farhad (2016-04-11)
Fiber loop ring down (FLRD) is a time domain multi-functional sensing, characterization, detection technique. FLRD technique is used to sense temperature, pressure, strain, biological cells, refractive index, and chemical species. FLRD has high accuracy, high selectivity, ability of remote control and rapid response. In this project, two FLRD spectrometers working at 800 nm (figure 1) and 1535 nm (figure 2) were set up for sensing different chemical analytes like C2H2, CO2, Ar, N2, DMSO, DMF, H2O, C2H6O, C3...
Karataş, Cansu; Değerliyurt, Boray; Yaman, Yavuz; Şahin, Melin (2017-09-30)
A well-known structural health monitoring method used to detect and locate damage in civil engineering structures is vibration-based damage identification. It typically monitors the civil structure over time to spot slow or sudden changes in its natural frequencies, damping factors or modal displacements. This approach can prove very powerful, but the sensitivity of those properties to local damage can be rather low. In addition, their cross-sensitivity to environmental influences may completely mask the ef...
Fiber loop ring down spectroscopy for trace chemical detection
Cengiz, Betül; Danışman, Mehmet Fatih; Esentürk, Okan; Department of Chemistry (2013)
Fiber loop ring down (FLRD) spectroscopy is a sensitive spectroscopic technique that is based on absorption and it is convenient for trace chemical detection. Different FLRD systems are being improved in order to increase their sensitivity. In FLRD spectroscopy, detection of a sample is done by measuring of a leaking light at each trip within an optical cavity. Intensity of leaking light has an exponential decay where it is reduced by absorption of sample and scattering of light. In this project, two FLRD s...
Fiber taper collection of photoluminescence at 1.54 μm from erbium doped silicon nitride photonic crystal cavities
Shambat, Gary; Gong, Yiyang; Lu, Jesse; Yerci, Selçuk; Li, Rui; Negro, Luca Dal; Vuckovic, Jelena (2010-12-01)
Photoluminescence at 1.54 μm from Er-doped silicon nitride embedded in silicon photonic crystal cavities was extracted with 2.5× greater collection efficiency compared to free space emission, with loaded Q values of up to 98% of the intrinsic Q.
Fiber Weave Impact on Crosstalk of High Speed Communication Channels in Glass Epoxy Packages
Durgun, Ahmet Cemal (2016-01-01)
Some packaging technologies utilize glass epoxy substrates that are composed of glass fiber bundles and epoxy resin. Because of the different electrical properties of glass and resin, the signal traces can have some variability, depending on their position with respect to the weaves. One of the parameters that are affected by the inhomogeneity of the substrate is the far end crosstalk. Crosstalk may significantly increase, hindering the link budget of high speed communication channels, especially in the den...
Citation Formats
M. Kaya and O. Esentürk, “Fiber Loop Ringdown Pressure Sensors for Wind Turbines,” 2019, Accessed: 00, 2021. [Online]. Available: