Results 31 to 40 of about 14,873 (307)
Phase encoding and decoding of short pulses at 10Gb/s using superstructured fiber Bragg gratings [PDF]
, 2001 A 7-chip, 160-Gchip/s phase-shift keyed code is assigned to short pulses after reflection from a superstructured fiber Bragg grating. The code is then recognized by a second grating, which is nominally identical to the encoder grating.
Teh, P.C. +3 more
core +1 more source
Modified coupled-mode model for thermally chirped polymer Bragg gratings [PDF]
, 2010 A modified coupled-mode (CM) model is proposed for the optical behavior of thermally chirped Bragg gratings. The model accounts for the axial gradient in the modulation wavenumber, which has been ignored in the classical CM model. The model is used to
Sher, Ilai, Bar-Cohen, A., Han, B.
core +1 more source
Optical fiber sensing based on reflection laser spectroscopy [PDF]
, 2010 An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo +34 more
core +1 more source
Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement [PDF]
, 2006 High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre.
Flockhart, G M H +8 more
core +1 more source
Synthesis of fiber gratings [PDF]
Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2002 The main design methods, developed so far for the synthesis of fiber Bragg gratings, are reviewed. We particularly focus on a very efficient method based on a differential layer-peeling algorithm and its application to design of high performance gratings.
Zervas, M.N., Feced, R.
openaire +2 more sources
Review of long period fiber gratings written by CO2 laser
, 2010 This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. First, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of ...
Yiping Wang, Wang, Yiping
core +1 more source
A simple method for fabricating phase-shifted fibre Bragg gratings with flexible choice of centre wavelength [PDF]
, 2009 A simple technique for fabricating phase-shifted fibre Bragg gratings (PSFBGs) without the use of a phase-shifted phase mask is presented. Two, 3-mm long, standard fibre Bragg gratings (FBGs) were inscribed sequentially in singlemode fibre at the same
Ralph P. Tatam +5 more
core +1 more source
, 2006 Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K. +2 more
core +1 more source
Recent Advancements in Rayleigh Scattering-Based Distributed Fiber Sensors
Advanced Devices & Instrumentation, 2021 Recently, Rayleigh scattering-based distributed fiber sensors have been widely used for measurement of static and dynamic phenomena such as temperature change, dynamic strain, and sound waves.
Xiaoyi Bao, Yuan Wang
doaj +1 more source
Sensors, 2021 In this study, silica glass, optical fiber Bragg gratings (FBGs) are used for torque-induced strain monitoring in carbon fiber reinforced polymer (CFRP) hollow shafts toward the development of a methodology for structural load monitoring.
Maria Konstantaki +11 more
doaj +1 more source