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Characterization of a thulium-doped silica-based optical fibre for S-band amplification

Identifieur interne : 00A056 ( Main/Exploration ); précédent : 00A055; suivant : 00A057

Characterization of a thulium-doped silica-based optical fibre for S-band amplification

Auteurs : Wilfried Blanc [France] ; Pavel Peterka [République tchèque] ; Basile Faure [France] ; Bernard Dussardier [France] ; Gérard Monnom [France] ; Ivan Kasik [République tchèque] ; Jiri Kanka [République tchèque] ; David Simpson [Australie] ; Greg Baxter [Australie]

Source :

RBID : Pascal:06-0473491

Descripteurs français

English descriptors

Abstract

Thulium-Doped Fiber Amplifier (TDFA) are considered for long-haul transmission systems as they allow amplification in the S-band (1.46-1.53 μm) thanks to the Tm3+ emission at 1.47 μm from the 3H4-3F4 transition. Presently TDFA are fluoride based because of the low phonon energy of this glass. But as it presents some drawbacks (reliability, splice to silica,...), we propose to realize a silica-based TDFA. The fibre under investigation in this article has a high Al2O3 concentration in order to improve the efficiency of the 1.47 μm-thulium emission. The fiber has a low Tm concentration, around 40 ppm mol, a 16.5×10-3 refractive index and a core radius of 2.3 μm. Lifetime from the 3H4 and 3 F4 levels were measured to be 58 μs and 540 μs, respectively. Gain measurements were conducted using a single wavelength pumping scheme at 1060 nm and 1 W of pump power. Although the highest measured gain was 0.9 dB for a 4m long fiber, this experimental result was compared with numerical modeling. From these simulations, we estimate the characteristics of the fibre to increase the gain up to 20 dB.


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<term>Aluminium oxide</term>
<term>Doped materials</term>
<term>Experimental study</term>
<term>Glass</term>
<term>Lifetime</term>
<term>Optical fiber</term>
<term>Optical fiber communication</term>
<term>Optical telecommunication</term>
<term>Refraction index</term>
<term>Reliability</term>
<term>Silica</term>
<term>Thulium</term>
<term>Thulium addition</term>
<term>Thulium-doped fibers</term>
</keywords>
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<term>Communication fibre optique</term>
<term>Télécommunication optique</term>
<term>Etude expérimentale</term>
<term>Fiabilité</term>
<term>Indice réfraction</term>
<term>Durée vie</term>
<term>Fibre optique</term>
<term>Matériau dopé</term>
<term>Aluminium oxyde</term>
<term>Silice</term>
<term>Addition thulium</term>
<term>Verre</term>
<term>Thulium</term>
<term>Al2O3</term>
<term>Al O</term>
<term>4279S</term>
<term>4281</term>
<term>Fibre dopée thulium</term>
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<div type="abstract" xml:lang="en">Thulium-Doped Fiber Amplifier (TDFA) are considered for long-haul transmission systems as they allow amplification in the S-band (1.46-1.53 μm) thanks to the Tm
<sup>3+</sup>
emission at 1.47 μm from the
<sup>3</sup>
H
<sub>4</sub>
-
<sup>3</sup>
F
<sub>4</sub>
transition. Presently TDFA are fluoride based because of the low phonon energy of this glass. But as it presents some drawbacks (reliability, splice to silica,...), we propose to realize a silica-based TDFA. The fibre under investigation in this article has a high Al
<sub>2</sub>
O
<sub>3</sub>
concentration in order to improve the efficiency of the 1.47 μm-thulium emission. The fiber has a low Tm concentration, around 40 ppm mol, a 16.5×10
<sup>-3</sup>
refractive index and a core radius of 2.3 μm. Lifetime from the
<sup>3</sup>
H
<sub>4</sub>
and
<sup>3</sup>
F
<sub>4</sub>
levels were measured to be 58 μs and 540 μs, respectively. Gain measurements were conducted using a single wavelength pumping scheme at 1060 nm and 1 W of pump power. Although the highest measured gain was 0.9 dB for a 4m long fiber, this experimental result was compared with numerical modeling. From these simulations, we estimate the characteristics of the fibre to increase the gain up to 20 dB.</div>
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}}

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Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024