Results 21 to 30 of about 10,804 (173)

Passive Temperature-Compensating Technique for Microstructured Fiber Bragg Gratings [PDF]

open access: yes, 2008
The thermal drift of the characteristic wavelength of fiber Bragg gratings (FBGs) photowritten in the core of microstructured fibers (MOFs) is significantly reduced by inserting a liquid of suitable refractive index into their holes.
Bernard Dussardier   +7 more
core   +6 more sources

Fiber Optic-Based Refractive Index Sensing at INESC Porto

open access: yesSensors, 2012
A review of refractive index measurement based on different types of optical fiber sensor configurations and techniques is presented. It addresses the main developments in the area, with particular focus on results obtained at INESC Porto, Portugal.
Orlando Frazão   +10 more
doaj   +1 more source

Mid-infrared transmission properties of step index and large mode area ZnSe microstructured optical fibers [PDF]

open access: yes, 2012
ZnSe microstructured fibers have been designed and fabricated using silica capillaries and an air-silica photonic band-gap optical fiber as high-pressure microfluidic templates for semiconductor growth via chemical fluid deposition.
Badding, J.V.   +6 more
core   +1 more source

Twisted Silica Few-Mode Hollow GeO2-Doped Ring-Core Microstructured Optical Fiber

open access: yesPhotonics, 2023
This work presents the first instance of a silica few-mode microstructured optical fiber (MOF) being successfully fabricated with a hollow GeO2-doped ring core and by strongly inducing twisting up to 790 revolutions per meter.
Anton V. Bourdine   +20 more
doaj   +1 more source

Compact supercontinuum source for the visible using gain-switched Ti:Sapphire laser as pump [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2006
We demonstrate the use of a miniature gain-switched Ti:Sapphire laser for efficient generation of visible supercontinuum light in a highly nonlinear microstructured optical fiber.
Räikkönen E.   +2 more
doaj   +1 more source

Ge-Doped microstructured multicorefiber for customizable supercontinuum generation [PDF]

open access: yes, 2011
Supercontinuum generation in a multicore fiber in which several uncoupled cores were doped with dissimilar concentrations of germanium was studied experimentally.
A., Tonello   +7 more
core   +1 more source

Recent Advances in High-Birefringence Fiber Loop Mirror Sensors

open access: yesSensors, 2007
Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement.
José L. Santos   +2 more
doaj   +1 more source

Index matching between passive and active tellurite glasses for use in microstructured fiber lasers: Erbium doped lanthanum-tellurite glass [PDF]

open access: yes, 2009
Active and passive variants of La-containing tellurite glasses have been developed with matched refractive indices. The consequences of adding lanthanum to the glass was studied through measurements of the crystallization stability, glass viscosity and ...
Birks   +23 more
core   +1 more source

Advances on Optical Fiber Sensors

open access: yesFibers, 2013
In this review paper some recent advances on optical fiber sensors are reported. In particular, fiber Bragg grating (FBG), long period gratings (LPGs), evanescent field and hollow core optical fiber sensors are mentioned. Examples of recent optical fiber
Luciano Mescia, Francesco Prudenzano
doaj   +1 more source

Metal-Coated Defect-Core Photonic Crystal Fiber for THz Propagation [PDF]

open access: yes, 2009
Modal solutions for metal-coated defect-core photonic crystal fiber (PCF) with a central air-hole have been obtained by using a full-vectorial finite element method to model the guidance of THz waves.
Agrawal, A.   +4 more
core   +1 more source

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