Results 31 to 40 of about 42,397 (299)
Chebyshev apodized fiber Bragg gratings
Science Progress, 2021 In this paper, a new apodized fiber Bragg grating (FBG) structure, the Chebyshev apodization, is proposed. The Chebyshev polynomial distribution has been widely used for the optimal design of antennas and filters, but it has not been used for designing FBGs.
Nai-Hsiang Sun +3 more
openaire +2 more sources
Two-Grating Talbot Bands Spectral Domain Interferometer [PDF]
, 2015 A configuration for Talbot bands is presented, where two tilted gratings replace the splitter normally used for recombining the signals from the two interferometer arms.
Bradu, Adrian +2 more
core +1 more source
Resonant THz sensor for paper quality monitoring using THz fiber Bragg gratings
, 2013 We report fabrication of THz fiber Bragg gratings (TFBG) using CO2 laser inscription on subwavelength step-index polymer fibers. A fiber Bragg grating with 48 periods features a ~4 GHz-wide stop band and ~15 dB transmission loss in the middle of a stop ...
Bock, Wojtek J. +5 more
core +1 more source
Fiber optic long period grating sensors with a nanoassembled mesoporous film of SiO2 nanoparticles [PDF]
, 2010 A novel approach to chemical application of long period grating (LPG) optical fibers was demonstrated, which were modified with a film nanoassembled by the alternate deposition of SiO2 nanoparticles (SiO2 NPs) and poly(diallyldimethyl ammonium ...
Korposh, Sergiy +6 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
Results in Optics, 2023 In this paper we experimentally demonstrate a femtosecond all-polarization- maintaining laser amplifier in an all-fiber scheme, which consists of a mode-locked oscillator and a two-stage amplifier.
Kuo Meng +3 more
doaj +1 more source
, 2010 The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one.
Andreas Tünnermann +30 more
core +1 more source
Polarization-independent wavelength conversion at 2.5 Gb/s by dual-pump four-wave mixing in a strained semiconductor optical amplifier [PDF]
, 1996 We give a general expression for the polarization dependence of the four-wave mixing (FWM) efficiency in the dual-pump configuration. This expression, along with some general properties of the FWM susceptibility tensor, is used to propose a simple scheme
Geraghty, David F. +4 more
core +1 more source
Fiber Bragg Grating Based Thermometry [PDF]
NCSLI Measure, 2015 In recent years there has been considerable interest in developing photonic temperature sensors such as the Fiber Bragg gratings (FBG) as an alternative to resistance thermometry. In this study we examine the thermal response of FBGs over the temperature range of 233 K to 393 K.
Ahmed, Zeeshan +3 more
openaire +3 more sources
Three-dimensional multichannel waveguide grating filters
Opto-Electronic ScienceDistributed fiber gratings exhibit outstanding capabilities in achieving a wide spectral response through the superimposition of gratings with different periods in the fiber core.
Si-Yu Yin +6 more
doaj +1 more source