Spectral Characteristics and Ultrahigh Sensitivities Near the Dispersion Turning Point of Optical Microfiber Couplers
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DOI: 10.1109/jlt.2018.2815558
Abstract: We present a systematic study on the spectral characteristics and ultrahigh sensitivity near the dispersion turning point (DTP) of optical microfiber couplers. Numerical simulations reveal that a DTP exists when the group effective refractive index… read more here.
Keywords: spectral characteristics; characteristics ultrahigh; turning point; dispersion turning ... See more keywords
Dispersion Turning Point Shift Based on Spatial-frequency Downconversion of Sensing Signal
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DOI: 10.1109/jlt.2024.3349532
Abstract: Ultra-high sensitivity can be obtained near the dispersion turning point (DTP), which is intrinsically determined by the dispersion characteristics of two arms in a Mach-Zehnder interferometer (MZI) and usually far from the observation window. The… read more here.
Keywords: dispersion; sensing signal; spatial frequency; turning point ... See more keywords
Ultrasensitive refractometer based on helical long-period fiber grating near the dispersion turning point.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.456571
Abstract: Precise and accurate measurements of the optical refractive index (RI) for liquids are increasingly finding applications in biochemistry and biomedicine. Here, we demonstrate a dual-resonance helical long-period fiber grating (HLPFG) near the dispersion turning point… read more here.
Keywords: helical long; long period; near dispersion; period fiber ... See more keywords