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This paper studies the principles of Raman scattering-based fiber temperature measurement technology and fiber Bragg grating-based (FBG-based) temperature measurement technology. In light of the situation of temperature measurement of GIS bus conductor, it compares the performance and technical indexes of Raman scattering-based temperature measurement scheme and FBG grating-based temperature measurement...
We demonstrate the detection and sizing of single nanoparticles in aqueous environment by real-time monitoring the step changes in the nanofiber transmission.
We report experimentally the chaos-assisted excitation of high-Q whispering-gallery modes in a deformed microcavity by a sub-wavelength fiber taper. This chaos-mediated coupling combines the advantages of fiber taper and free-space coupling.
With the coupled-mode theory, we analyzed the energy transmission between the microsphere cavity and waveguide system, and revealed the mode coupling strength in a bare microsphere coupled with a fiber taper theoretically and experimentally. In a practical taper-microsphere coupling system, the traveling wave clockwise (CW) and counterclockwise (CCW) whispering gallery modes (WGMs) should existed...
We developed a new method to fabricate a silica microsphere coated by a thin layer of Er : Yb-doped phosphate glass. The coated microsphere possessed high-Q whispering-gallery modes and formed single-mode and multimode microlasers in the both 1550- and 1040-nm bands. A low-loss fiber taper was used to not only launch the pump power around 980 nm into the microsphere, but also collect the resulting...
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