Investigation of the mechanisms of formation of long-period gratings arc-induced in pure-silica-core fibres

Rego, G.; Иванов, О.

doi:10.1016/j.optcom.2010.12.083

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…Reported spectra demonstrate that we are able to write gratings in both types of F-doped fibers (DrakaSRH and Ffiber_A), with improved spectral feature, as compared to the LPGs written in fluorine-doped fiber presented in [33] [38]. Table II summarizes the fabrication (arc time and power) and geometrical (period and length) parameters of the LPGs discussed in previous sections.…”

Section: B Gratings Fabrication In Pure-silica Core With F-doped Clamentioning

confidence: 89%

“…The experience gained in the fabrication of long-period gratings in standard fiber was employed during the manufacturing of gratings in F-doped optical fibers, in order to optimize the fabrication process for this kind of fiber, too [33]. After several trials, the parameters of the EAD-based fabrication procedure were optimized for both fluorine-doped fibers.…”

Section: B Gratings Fabrication In Pure-silica Core With F-doped Clamentioning

confidence: 99%

“…The effect of dopant diffusion and microdeformations were also taken into consideration in specific cases [24][25] [26] [30]. Moreover, the conditions leading to symmetry or asymmetry of cladding modes involved in the coupling mechanism in arc-induced LPG have been also discussed in several papers [31][32] [33]. The main limitation of the EAD-based technique is the difficulty in the fabrication of grating with low pitch.…”

Section: Introductionmentioning

confidence: 99%

“…So far, in fact, few papers report on the fabrication of LPGs in pure-silica-core fibers by means of electric arc discharge technique [33][38] [54]. These works refer to LPGs written in pure silica core fibers from Oxford Electronics, with inner fluorine-doped silica cladding and pure silica outer cladding, and in Acreo fibers with single fluorine doped cladding.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of Long-Period Gratings Written in Standard and Fluorine-Doped Fibers by Electric Arc Discharge

et al. 2016

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In this paper, we present a comparative study of long-period gratings (LPGs) written in the standard Ge-doped fiber and in two different fluorine-doped fibers by means of the electric arc discharge (EAD)-based technique. Concerning Ge-doped fibers, we present an assessment of the EAD procedure by fabricating relatively short LPGs with deep attenuation bands (up to 32 dB) and trivial power losses. We also demonstrate the ability to manage the effect of the single EAD perturbation to select grating length, which in turn acts on the bandwidth of attenuation bands, without compromising depth. Furthermore, for the first time, we produced LPGs in F-doped fibers with attenuation bands deeper than 30 dB, demonstrating the dependence of the spectra on the grating period. Finally, we illustrate a comparative experimental study on the sensitivity of LPGs fabricated in the standard and F-doped fibers with surrounding refractive index (SRI) and temperature changes. We proved that the SRI response of LPGs in F-doped fibers is significantly higher than in the standard fiber and it strongly depends on the type of F-doped fiber considered. LPGs written in F-doped fibers exhibit a slightly lower temperature sensitivity (in the range 20-30 pm/°C for λres2 cladding mode) than the LPG in the standard fiber (45 pm/°C)

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Section: B Gratings Fabrication In Pure-silica Core With F-doped Clamentioning

confidence: 89%

Section: B Gratings Fabrication In Pure-silica Core With F-doped Clamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative Study of Long-Period Gratings Written in Standard and Fluorine-Doped Fibers by Electric Arc Discharge

et al. 2016

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“…In the case of pure silica-core fibers it was also demonstrated that microdeformations can be responsible for the formation of the gratings [35]. During these investigations the knowledge regarding mechanically induced LPFGs was very important for the sake of comparison between both types of gratings [36].…”

Section: Mechanisms Of Gratings Formationmentioning

confidence: 99%

Arc-Induced Long Period Fiber Gratings

Rego

2016

Journal of Sensors

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Long period fiber gratings produced by the electric arc technique have found an increasing interest by the scientific community due to their ease to fabricate, virtually enabling the inscription in any kind of fiber, low cost, and flexibility. In 2005 we have presented the first review on this subject. Since then, important achievements have been reached such as the identification of the mechanisms responsible for gratings formation, the type of symmetry, the conditions to increase fabrication reproducibility, and their inscription in the turning points with grating periods below 200 μm. Several interesting applications in the sensing area, including those sensors working in reflection, have been demonstrated and others are expected, namely, related to the monitoring of extreme temperatures, cryogenic and high temperatures, and high sensitivity refractometric sensors resulting from combining arc-induced gratings in the turning points and the deposition of thin films in the transition region. Therefore, due to its pertinence, in this paper we review the main achievements obtained concerning arc-induced long period fiber gratings, with special focus on the past ten years.

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Numerical analysis of GeO2-concentration effects in arc-induced long-period fiber gratings under external refractive-index changes

Guzmán-Ramos

Ceballos-Herrera

Selvas-Aguilar

2014

OPT REV

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Investigation of the mechanisms of formation of long-period gratings arc-induced in pure-silica-core fibres

Cited by 6 publications

References 21 publications

Comparative Study of Long-Period Gratings Written in Standard and Fluorine-Doped Fibers by Electric Arc Discharge

Comparative Study of Long-Period Gratings Written in Standard and Fluorine-Doped Fibers by Electric Arc Discharge

Arc-Induced Long Period Fiber Gratings

Numerical analysis of GeO2-concentration effects in arc-induced long-period fiber gratings under external refractive-index changes

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