Optical Fiber Interferometers Based on Arc-Induced Long Period Gratings at INESC TEC [PDF]
Sensors, 2021 In this work, we review the most important achievements of an INESC TEC long-period-grating-based fiber optic Michelson and Mach–Zehnder configuration modal interferometer with coherence addressing and heterodyne interrogation as a sensing structure for ...
Paulo Caldas, Gaspar Rego
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Dataset of MAPLE Parameters for Hemoglobin Deposition upon long period gratings [PDF]
Data in Brief, 2020 Matrix-assisted pulsed laser evaporation (MAPLE) is an alternative and complimentary method to pulsed laser deposition. MAPLE has been demonstrated to be a less harmful approach for transporting and depositing delicate, highly sensitive molecules ...
Georgi Dyankov +6 more
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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.
Agostino Iadicicco, Stefania Campopiano
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Arc-Induced Long Period Gratings from Standard to Polarization-Maintaining and Photonic Crystal Fibers [PDF]
Sensors, 2018 In this work, we report about our recent results concerning the fabrication of Long Period Grating (LPG) sensors in several optical fibers, through the Electric Arc Discharge (EAD) technique. In particular, the following silica fibers with both different
Flavio Esposito +3 more
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A New Setup for Real-Time Investigations of Optical Fiber Sensors Subjected to Gamma-Rays: Case Study on Long Period Gratings [PDF]
Sensors, 2020 In this work, we present a new setup for real-time investigations of optical fibers and optical fiber sensors while being subjected to gamma-rays. The investigation of the radiation effects on novel or well-assessed sensing devices has attracted a lot of
Andrei Stancalie +7 more
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Long Period Gratings in Random Hole Optical Fibers for Refractive Index Sensing [PDF]
Sensors, 2011 We have demonstrated the fabrication of long period gratings in random hole optical fibers. The long period gratings are fabricated by a point-by-point technique using a CO2 laser.
Gary Pickrell, Ke Wang
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Ultrahigh-Temperature Regeneration of Long Period Gratings (LPGs) in Boron-Codoped Germanosilicate Optical Fibre [PDF]
Sensors, 2015 The regeneration of UV-written long period gratings (LPG) in boron-codoped germanosilicate “W” fibre is demonstrated and studied. They survive temperatures over 1000 °C.
Wen Liu, Kevin Cook, John Canning
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Pulsed CO2 Laser-Fabricated Cascades of Double Resonance Long Period Gratings for Sensing Applications [PDF]
MicromachinesWe present a detailed theoretical and experimental study of cascaded double resonance long period gratings (C DR LPGs) for fabricated sensing applications.
Tinko Eftimov +4 more
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Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings [PDF]
Sensors, 2013 We demonstrate a refractive index sensor based on a long period grating (LPG) inscribed in a special photosensitive microfiber with double-clad profile. The fiber is tapered gradually enough to ensure the adiabaticity of the fiber taper.
Choong Leng Ng +3 more
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3D printing of long period gratings for curvature applications [PDF]
EPJ Web of Conferences, 2021 In this paper we will discuss a new type of long period grating (LPG) that consists on an optical fibre glued on top of a 3D printed grooved plate. The LPG performance will be tested for the case when pressure is applied transversely to the grooved plate.
Valente Nuno F. +2 more
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