Long-period grating
Application of long-period-grating sensors to respiratory plethysmography
... the LPGs insensitive to the refractive index external to the fiber. A curvature sensor consists of the fiber long-period grating laid on a carbon fiber ribbon, which is then encapsulated in a ...
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Sensing characteristics of a novel two-section long-period grating
... fiber long-period grating 共 LPG 兲 is an axially peri- odic refractive-index variation with a period of typi- cally a few hundred micrometers inscribed in the core of a photosensitive ...
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The application of a long period grating sensors to human respiratory plethysmography
... upon long period gratings which are written in a progressive three layered fibre to render them insensitive to refractive index ...the long period grating laid upon a carbon fibre ...
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Respiratory monitoring using fibre long period grating sensors
... fibre long period grating curvature sensors on a garment, used to monitor the thoracic and abdominal volumetric tidal movements of a human ...upon long period gratings written in a ...
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Graphene oxide coated long period grating for optical sensing purposes
... Graphene oxide coated long period grating for optical sensing purposes.. To cite this article: Kasun Prabuddha Wasantha Dissanayake et al 2019 J..[r] ...
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On the Validity of the Effective Index Method for Long Period Grating Photonic Crystal Fibers
... Email: * [email protected] Received February 9 th , 2012; revised March 5 th , 2012; accepted April 11 th , 2012 ABSTRACT This paper focuses on the investigation of modal characteristics and sensing properties of ...
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Graphene oxide coated long period grating based fibre optic humidity sensor
... When the coupling conditions are satisfied, forward propagating light in the core mode couples with co-propagating cladding modes at the long period grating. The resonance wavelength λ res can be ...
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Optical characterisation of a long period grating using liquid droplets on an electrowetting-on-dielectric platform
... In this paper we present measurements of the optical transmission characteristics of an unbroken fibre-optofluidic device in which a fluid droplet interacts with light propagating in a single mode fibre incorporating a ...
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Simultaneous measurement of humidity and temperature based on a partially coated optical fiber long period grating
... A humidity and temperature optical fiber sensor based on a long-period grating (LPG), which can provide simultaneous response to both magnitudes, is proposed and demonstrated via experiments. ...
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Design and characterisation of long period grating (LPG) - based optical fibre sensors for acoustic wave detection
... Design and characterisation of long period grating (LPG) - based optical fibre sensors for acoustic wave detection.. (Unpublished Doctoral thesis, City University London).[r] ...
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Design and Simulation of Temperature Sensor based on Long Period Grating in Liquid Filled Photonic Crystal Fiber
... In this paper a novel measurement method for temperature has been proposed and investigated based on an ethanol-filled photonic crystal fiber long period grating (PCF-LPG). The ethanol-filled PCF-LPG ...
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Optical fibre long period grating gas sensor modified with metal organic framework thin films
... fibre long period grating (LPG) modified with a thin film of ZIF-8, a zeolitic immidazol frame- work material and a subgroup of metal organic framework family, was employed for the detection of organic ...
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A long period grating optical fiber sensor with nano assembled porphyrin layers for detecting ammonia gas
... fiber long period grating sensor with a polyelectrolyte alternate thin film for gas sensing of amine odors, Sensors and Actuators B: Chemical, 185 (2013) ...fibre long period ...
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Long period grating in multicore optical fiber:an ultra-sensitive vector bending sensor for low curvatures
... UK Long period grating were UV inscribed into a multi-core fiber consisting of 120 single mode ...the grating was fusion spliced into single mode fiber at both ...the long period ...
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Highly sensitive optical fibre long period grating biosensor anchored with silica core gold shell nanoparticles
... A long period grating (LPG) is a core-cladding mode coupling device, where the in- fi bre grating has a period of order 100 – 500 μ ...
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Volatile Organic Compounds Sensing Using Optical Fibre Long Period Grating with Mesoporous Nano-Scale Coating
... A long period grating (LPG) modified with a mesoporous film infused with a calixarene as a functional compound was employed for the detection of individual volatile organic compounds (VOCs) and their ...
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Graphene oxide-coated Long Period Grating-based fibre optic sensor for relative humidity and external refractive index
... Index Terms— humidity sensor, refractive index sensor, long period grating, graphene oxide, optical fibre I. I NTRODUCTION VER the past decade, fibre optic sensors have become popular in many ...
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Graphene oxide-coated Long Period Grating-based fibre optic sensor for relative humidity and external refractive index
... Index Terms— humidity sensor, refractive index sensor, long period grating, graphene oxide, optical fibre I. I NTRODUCTION VER the past decade, fibre optic sensors have become popular in many ...
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Volatile organic compounds sensing with use of fibre optic sensor with long period grating and mesoporous nano scale coating
... fibre long period grating based selective vapour sensing of volatile organic ...Modified Long Period Fiber Grating-Based ...
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Carbon dioxide measurements using long period grating optical fibre sensor coated with metal organic framework HKUST 1
... 28. Hromadka J, Tokay B, James S, Tatam RP, Korposh S. Optical fibre long period grating gas sensor modified with metal organic framework thin films. Sensors Actuators, B Chem. 2015;221:891–9. 29. ...
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