Abstract: A highly sensitive pH sensor based on a tapered single-mode optical fiber (SMF) working at the dispersion turning point (DTP) is proposed, with calcium alginate hydrogel coated on its ...

1 Marine and Coastal Research Laboratory, Pacific Northwest National Laboratory (DOE), Sequim, United States 2 School of Oceanography, University of Washington, Seattle, United States The final, ...

Abstract: Water pH measurement is vital as it provides fundamental information about its quality and suitability for agriculture, aquatic ecosystems, industry, and human consumption. Each of these ...