Results 51 to 60 of about 11,192,233 (306)

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

Sensing Features of Long Period Gratings in Hollow Core Fibers [PDF]

Sensors, 2015
We report on the investigation of the sensing features of the Long-Period fiber Gratings (LPGs) fabricated in hollow core photonic crystal fibers (HC-PCFs) by the pressure assisted Electric Arc Discharge (EAD) technique. In particular, the characterization of the LPG in terms of shift in resonant wavelengths and changes in attenuation band depth to the
IADICICCO, Agostino, CAMPOPIANO, Stefania   +1 more
openaire   +5 more sources

Cryogenic Temperature Response Of Fibre Optic Long Period Gratings. [PDF]

, 2003
The thermal response of the attenuation bands of an optical fibre long period grating was monitored over a temperature range of 4.2–280 K. A linear dependence of the central wavelength of the band, of gradient 0.2 nm K-1, was observed over the range 77 ...
Bateman, Rod, Tatam, Ralph P., James, Stephen W., Twin, Andrew, Noonan, Paul   +4 more
core   +1 more source

Simultaneous measurement of magnetic field and temperature based on magnetic fluid-clad long period fiber grating [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
Simultaneous measurement of magnetic field and temperature is proposed and experimentalized with a magnetic fluid-clad long period fiber grating structure. Magnetic fluid is used as the surrounding material of the long period fiber grating.
Tang J., Pu S., Luo L., Dong S.
doaj   +1 more source

Nested long period grating interferometers [PDF]

, 2007
The concept of nested fibre optic long period grating (LPG) based interferometers is introduced. A number of in-series, identical LPGs may be used to form a set of nested, multiplexed Mach-Zehnder interferometers that may demodulated and demultiplexed
Richard P. Murphy, Ralph P. Tatam, Tatam, Ralph P., James, Stephen W., Stephen W. James, Murphy, Richard P.   +5 more
core   +1 more source

Twist Sensor Based on Long Period Grating and Tilted Bragg Grating Written in Few-Mode Fibers

IEEE Photonics Journal, 2018
A twist sensor based on a few-mode long period grating (LPG) and a tilted fiber Bragg grating (TFBG) is proposed and demonstrated. The LPG, inscribed in a step index few-mode fiber by a CO2 laser, is utilized to excite the LP11 core mode.
Kang Yang, Yange Liu, Zhi Wang, Yan Li, Ya Han, Hongwei Zhang   +5 more
doaj   +1 more source

All-optical 160 Gbit/s retiming system using fiber grating based pulse shaping technology [PDF]

, 2009
This paper demonstrates a retiming system operating at rates of 40 and 160 Gbit/s, which incorporates a superstructured fiber Bragg grating (SSFBG) as a pulse shaping element.
Galili, Michael, Ibsen, M., Petropoulos, P., Ibsen, Morten, Richardson, D.J., Richardson, David J., Zibar, Darko, Parmigiani, Francesca, Clausen, Anders, Petropoulos, Periklis, Oxenløwe, Leif Katsuo, Parmigiani, F., Clausen, Anders Thomas, Jeppesen, Palle   +13 more
core   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Programmable long-period grating in a liquid core optical fiber [PDF]

Optics Letters, 2016
A programmable fiber long-period grating (LPG) is experimentally demonstrated in a liquid core optical fiber with a low insertion loss. The LPG is dynamically formed by a temperature gradient in real time through a micro-heater array. The transmission spectrum of the LPG can be completely reconfigured by digitally changing the grating period, index ...
Qi, Tao, Jung, Yongmin, Xiao, Limin, Wang, Jie, Xiao, Shilin, Lu, Chao, Tam, Hwa-Yaw, Peacock, Anna C.   +7 more
openaire   +3 more sources