Angularly Cascaded Long-Period Fiber Grating for Curvature and Temperature Detection [PDF]
A high-sensitivity curvature sensor with dual-parameter measurement ability based on angularly cascaded long-period fiber grating (AC-LPFG) is proposed and experimentally demonstrated, which consists of two titled LPFGs (TLPFGs) with different tilt ...
Anping Xiao +9 more
doaj +2 more sources
Long-Period Fiber Grating Sensors for Chemical and Biomedical Applications [PDF]
Optical fiber biosensors (OFBS) are being increasingly proposed due to their intrinsic advantages over conventional sensors, including their compactness, potential remote control and immunity to electromagnetic interference.
Jintao Cai, Yulei Liu, Xuewen Shu
doaj +2 more sources
High-Order Modes Micro-Knot Excited by a Long-Period Fiber Grating [PDF]
We suggest a fiber micro-knot fabricated on a long-period fiber grating. The long-period fiber grating excites high-order modes into the micro-knot and transfers the output back to the Gaussian mode.
Shir Shahal +2 more
doaj +2 more sources
This paper presents the feasibility of utilizing fiber Bragg grating (FBG) and long-period fiber grating (LPFG) sensors for nondestructive evaluation (NDE) of infrastructures using Portland cement concretes and asphalt mixtures for temperature, strain ...
Jian-Neng Wang, Jaw-Luen Tang
doaj +3 more sources
Application of Robust, Packaged Long-Period Fiber Grating for Strain Measurement [PDF]
This paper proposes an optical fiber strain sensor based on packaged long-period fiber gratings (PLPFG) which is fabricated by the micro-electromechanical systems (MEMS) process and packaged with poly-dimethylsiloxane (PDMS) polymer materials.
Ke-Ping Ma +4 more
doaj +2 more sources
An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths [PDF]
The response of a novel long-period fiber grating (LPFG) with a period of 180 µm to a surrounding refractive index (RI) was investigated. The results displayed that, with the increase in RI of the surrounding media of cladding glass in the grating region,
Qiu-Shun Li +8 more
doaj +2 more sources
Long Period Grating-Based Fiber Coupling to WGM Microresonators
A comprehensive model for designing robust all-in-fiber microresonator-based optical sensing setups is illustrated. The investigated all-in-fiber setups allow light to selectively excite high-Q whispering gallery modes (WGMs) into optical microresonators,
Francesco Chiavaioli +6 more
doaj +3 more sources
Simultaneous generation of first- to fourth-order OAM modes based on a cascaded preset-twist long-period fiber grating [PDF]
We propose and demonstrate the simulation and fabrication of an all-fiber orbital angular momentum (OAM) mode converter capable of generating first- to fourth-order modes simultaneously, which is realized by inscribing a cascaded preset-twist long-period
Chang Wenzhe +6 more
doaj +2 more sources
Long-Period Fiber Grating Sensor Based on a Conductive Polymer Functional Layer. [PDF]
Hsu CY +6 more
europepmc +2 more sources
Humidity Sensor Based on a Long-Period Fiber Grating Coated with Polymer Composite Film. [PDF]
Wang Y +5 more
europepmc +2 more sources

