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We demonstrated a unique rectangular air bubble by means of splicing two sections of standard single mode fibers together and tapering the splicing joint. Such an air bubble can be used to develop a promising high-sensitivity strain sensor based on Fabry-Perot interference. The sensitivity of the strain sensor with a cavity length of about 61 μm and a wall(More)
Migration of lab-on-chip configurations into the optical fiber platform opens the revolutionary prospect of lab-in-fiber systems on the basis of an efficient optical transport highway for multifunctional sensing. In this paper, three-dimensional microfluidic channels patterning inside the fiber by femtosecond laser ablation, femtosecond laser assisted(More)
We reported a gas pressure sensor based on CO 2-laser-induced long-period fiber grating (LPFG) in an air-core photonic bandgap fiber (PBF). The LPFG was inscribed in an air-core PBF by the use of an improved CO 2 laser system with an ultrapre-cision 2-D scanning technique, which induced periodic collapses of air holes along the axis of the PBF. Such an LPFG(More)
A Mach-Zehnder interferometer based on a twin-core fiber was proposed and experimentally demonstrated for gas pressure measurements. The in-line Mach-Zehnder interferometer was fabricated by splicing a short section of twin-core fiber between two single mode fibers. A micro-channel was created to form an interferometer arm by use of a femtosecond laser to(More)
A modified method based on existing static facial sling techniques to reconstruct the corner of mouth for elder facial palsy was developed and reported. According to the anatomy and function of the zygomatic minor and zygomatic major, this technique uses nasolabial dermis as a whole to attach to the orbicularis oris to provide attachment to the whole area.(More)
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