Results 51 to 60 of about 120,889 (204)

An Axial Force Sensor Based on a Long-Period Fiber Grating with Dual-Peak Resonance

Photonics, 2023
A high-sensitivity axial force sensor with a large measurement range based on a dual-peak long-period fiber grating (LPFG) is proposed and experimentally demonstrated.
Weixuan Luo, Ying Wang, Qiang Ling, Zuguang Guan, Daru Chen, Qiong Wu   +5 more
doaj   +1 more source

Highly sensitive refractometer with photonic crystal fiber long-period grating

, 2007
We present highly sensitive refractometers based on a long-period grating in a large mode area PCF. The maximum sensitivity is 1500 nm/RIU at a refractive index of 1.33, the highest reported for any fiber grating.
Bang, Ole, Rindorf, Lars
core   +1 more source

Graphene oxide coated long period grating for optical sensing purposes [PDF]

, 2019
In this paper, fabrication and surrounding refractive index response of a graphene oxide (GO) coated long period grating (LPG) is presented. An improved version of the Hummer's method was followed for the synthesis of GO used in this work and GO sheets ...
Dissanayake, K. P. W., Grattan, K. T. V., Matthias, F., Sun, T., Vidakovic, M.   +4 more
core   +1 more source

Ultra-wide detuning planar Bragg grating fabrication technique based on direct UV grating writing with electro-optic phase modulation [PDF]

, 2013
A direct UV grating writing technique based on phase-controlled interferometry is proposed and demonstrated in a silica-on-silicon platform, with a wider wavelength detuning range than any previously reported UV writing technology.
Gates, J.C., Holmes, C., Mennea, P., Rogers, H., Sima, C., Smith, P.G.R., Zervas, M.N.   +6 more
core   +1 more source

Refractive Index Sensing by Using Mechanically Induced Long-Period Grating

IEEE Photonics Journal, 2012
In this paper, a refractive index sensor using a mechanically induced long-period grating is proposed and experimentally demonstrated. The sensing element is based on a composite optical waveguide, which is made of a single-mode fiber, a Teflon-cannula ...
Xiaojun Zhou, Shenghui Shi, Zhiyao Zhang, Yong Liu   +3 more
doaj   +1 more source

A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification

Journal of Chemistry, 2020
A high temperature-sensitive long-period fiber grating (LPFG) sensor fabricated by the local fictive temperature modification is proposed and demonstrated.
Guorui Zhou, Chuanchao Zhang, Xiufang Xie, Yi Wan, Caizhen Yao, Jun Liu, Longfei Niu, Xinxiang Miao, Hai Zhou, Xiaodong Jiang, Shizhen Xu, Haibing Lv   +11 more
doaj   +1 more source

Biosensing with optical fiber gratings

Nanophotonics, 2017
Optical fiber gratings (OFGs), especially long-period gratings (LPGs) and etched or tilted fiber Bragg gratings (FBGs), are playing an increasing role in the chemical and biochemical sensing based on the measurement of a surface refractive index (RI ...
Chiavaioli Francesco, Baldini Francesco, Tombelli Sara, Trono Cosimo, Giannetti Ambra   +4 more
doaj   +1 more source

Compact focusing grating couplers for silicon-on-insulator integrated circuits [PDF]

, 2007
—We report experimental results on compact and broadband focusing grating couplers, both in silicon-on-insulator (SOI) and gold on SOI. An eight-fold length reduction of the coupling structure from fiber to photonic wire in SOI, as com-pared to a linear ...
Dirk Taillaert, Dries Van Thourhout, Frederik Van Laere, Jonathan Schrauwen, Roel Baets, Stijn Scheerlinck, Student Member, Student Member, Student Member, Tom Claes, Wim Bogaerts   +10 more
core   +2 more sources

Polarization Dependence Suppression of Optical Fiber Grating Sensor in a π-Shifted Sagnac Loop Interferometer

Sensors, 2010
In the sensing applications of optical fiber grating, it is necessary to reduce the transmission-type polarization dependence to isolate the sensing parameter.
Jaebum Son, Min-Kyoung Lee, Myung Yung Jeong, Chang-Seok Kim   +3 more
doaj   +1 more source

1.55 µm AlGaInAs/InP sampled grating laser diodes for mode-locking at THz frequencies [PDF]

, 2018
We report mode locking in lasers integrated with semiconductor optical amplifiers, using either conventional or phase shifted sampled grating distributed Bragg reflectors(DBRs).
Hou, Bin, Hou, Lianping, Liang, Song, Marsh, John Haig H., Tang, Song   +4 more
core   +1 more source