Simultaneous Detection of Temperature, Strain, Refractive Index, and pH Based…

A novel π-phase-shifted (PS) long-period fiber-grating (LPFG) sensor operating near the phase-matching turning point (PMTP) was proposed. The PS-LPFG sensor can simultaneously detect temperature, …

Mid-Infrared Single-Mode Ge-As-S Fiber for High Power Laser Delivery

Traditional single-mode As-S fiber is limited in the transmission of high power mid-infrared laser by its low threshold of laser-induced damage. A single-mode chalcogenide (ChG) fiber based on Ge-A…

A Gas-Liquid Sensor Functionalized With Graphene-Oxide on Chalcogenide Tapere…

This work presents a gas-liquid sensor based on chalcogenide etched-tapered fiber (ETF) functionalized with graphene oxide film. Unlike the preparation of conventional tapered fiber sensors, the co…

Diffraction Grating Fabricated on Chalcogenide Glass Fiber End Surfaces With …

Chalcogenide glass (ChG) optical fibers have excellent transmission performance in the mid-infrared range, and microstructured devices prepared on ChG fibers play an important role in the field of …

A W-Type Double-Cladding IR Fiber With Ultra-High Numerical Aperture

We have prepared a novel fiber consisting of three different glasses with W-type double-cladding structure and constant core-to-cladding ratio by the extrusion method. An ultra-high numerical apert…

Mid-Infrared Gas Detection Using a Chalcogenide Suspended-Core Fiber

A fast-response mid-infrared gas sensor based on a chalcogenide suspended-core fiber with microchannels fabricated by a tightly focused femtosecond laser pulse was demonstrated. Chalcogenide four-h…

Low-Loss Chalcogenide Fiber Prepared by Double Peeled-Off Extrusion