Optics Express, 2020 Two long-period fiber gratings (LPFGs) used to separately suppress the stimulated-Raman-scattering (SRS) in the seed and amplifier of kW-level continuous-wave (CW) MOPA fiber laser are developed in this paper.
Kerong Jiao +4 more
semanticscholar +1 more source
Arc-Induced Long Period Gratings in Erbium-Doped Fiber
IEEE Photonics Journal, 2019 In this paper, we report about the fabrication of long period gratings (LPGs) directly into an Erbium-doped fiber, by using the electric arc discharge technique. The attention is focused on the writing process and the resulting properties, by considering
Flavio Esposito +2 more
doaj +1 more source
Calculation of optical-waveguide grating characteristics using Green's functions and the Dyson's equation [PDF]
, 2006 We present a method for calculating the transmission spectra, dispersion, and time delay characteristics of optical-waveguide gratings based on Green's functions and Dyson's equation.
Mortensen, Niels Asger, Rindorf, Lars
core +2 more sources
Long-period gratings in chalcogenide fibers
Optics Express, 2006 We report the first demonstration of long period gratings in single mode As(2)Se(3) chalcogenide glass fiber. The grating is implemented by pressing a threaded rod against a short piece of fiber. Its strength can be tuned over a 25 dB range, has high repeatability, and is fully reversible.
Dominik, Pudo +2 more
openaire +2 more sources
Sensing Features of Arc-induced Long Period Gratings
Proceedings, 2019 In this work, we report a systematic investigation about the sensitivity of arc-induced Long Period Gratings in standard SMF28 fiber. Several gratings were fabricated with period Λ in range 330−630 µm and characterized towards changes in ...
Flavio Esposito +3 more
doaj +1 more source
Fabrication of strong long-period gratings in hydrogen-free fibers with 157-nm F
, 2001 Long-period gratings were fabricated in standard telecommunication fiber (Corning SMF-28) by use of what is believed to be record short-wavelength light from a 157-nm F2 laser.
Chen, KP, Herman, PR, Tam, R, Zhang, J
core +1 more source
Ultra-wide detuning planar Bragg grating fabrication technique based on direct UV grating writing with electro-optic phase modulation [PDF]
, 2013 A direct UV grating writing technique based on phase-controlled interferometry is proposed and demonstrated in a silica-on-silicon platform, with a wider wavelength detuning range than any previously reported UV writing technology.
Gates, J.C. +6 more
core +1 more source
Compact focusing grating couplers for silicon-on-insulator integrated circuits [PDF]
, 2007 —We report experimental results on compact and broadband focusing grating couplers, both in silicon-on-insulator (SOI) and gold on SOI. An eight-fold length reduction of the coupling structure from fiber to photonic wire in SOI, as com-pared to a linear ...
Dirk Taillaert +10 more
core +2 more sources
Optical Fiber Interferometers Based on Arc-Induced Long Period Gratings at INESC TEC
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
doaj +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