1.49-μm-band gain-shifted thulium-doped fiber amplifier for WDM transmission systems

Kasamatsu, Tadashi; Yano, Y.; Ono, Takashi

doi:10.1109/jlt.2002.804038

Cited by 84 publications

(25 citation statements)

References 32 publications

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“…The rate equations are used to analyze theoretically the populations in the energy levels of Tm 3+ ions under 1064 nm pump and signal power conditions. The absorption and stimulated emission cross sections define the absorption coefficient for pump light and gain coefficient for signal light [9]. The transition crosssections of thulium are shown in Fig.…”

Section: Theory Of the Tdfamentioning

confidence: 99%

Thulium Doped Fiber Amplifier (TDFA) for S-band WDM Systems

El-Nahal¹,

Husein²

2012

OJAppS

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Abstract-A comprehensive numerical model based on solving rate equations of a thulium-doped silica-based fiber amplifier is evaluated. The pump power and thulium-doped fiber (TDF) length for single-pass Thulium-Doped Fiber Amplifiers (TDFA) are theoretically optimized to achieve the optimum Gain and Noise Figure (NF) at the center of S-band region. The 1064 nm pump is used to provide both ground-state and excited state absorptions for amplification in the S-band region. The theoretical result is in agreement with the published experimental result.

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Section: Theory Of the Tdfamentioning

confidence: 99%

Thulium Doped Fiber Amplifier (TDFA) for S-band WDM Systems

El-Nahal¹,

Husein²

2012

OJAppS

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“…The model that has been developed is similar to that published by Kasamatsu et al [8] where the steady-state population of the relevant levels has been numerically integrated simultaneously with the propagation equations using a fourth-order Runge-Kutta method.…”

Section: Optimisationmentioning

confidence: 99%

Optimisation of a two colour pumped Tm3+-doped ZBLAN fibre amplifier at 1.49 µm

Tessarin

Lynch

Donegan

et al. 2006

IEE Proceedings - Optoelectronics

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Abstract:The authors have constructed a 4 metre length thulium-doped ZBLAN fibre amplifier optically pumped at 0.8 mm by a tuneable Ti : Sapphire and at 1.06 mm by an Nd 3þ : YAG laser. The authors obtained 12.5 dB for small-signal gain at 60 mW for the two pumps' optical power. The behaviour of the amplifier has been analysed with the optical power of the signal approaching the saturation condition (25 dBm) and at different wavelengths for the Ti : Sapphire pump laser. A model was developed for the optimisation of the amplifier for signal power below the saturation intensity at wavelengths between 1.49 and 1.53 mm (S-band). This shows an empirical quadratic dependence of the Nd 3þ : YAG power with respect to the Ti : Sapphire power in order to obtain the maximum photon conversion efficiency making the optimised amplifier employable as a booster amplifier in the supporting telecommunication band.

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“…Fig. 1 shows quantum transitions for the thulium ions doping a fluoride glass under the condition of pumping at 1050 nm [7]. There is a number of principal emission lines, in particular the 800 nm emission resulting from the 3 H 4 to 3 H 6 transition [8] and the 1800-nm emission from the 3 F 4 to 3 H 6 transition [9].…”

Section: Introductionmentioning

confidence: 99%

“…There is a number of principal emission lines, in particular the 800 nm emission resulting from the 3 H 4 to 3 H 6 transition [8] and the 1800-nm emission from the 3 F 4 to 3 H 6 transition [9]. Moreover, there are also photons emitted in the region of 1460 nm due to the 3 H 4 to 3 F 4 transition, which is used for the S-band amplification [7]. The amplification is possible via the up-conversion pumping technique so that a population inversion between the 3 H 4 and 3 F 4 levels can be achieved [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of transverse distribution profile of thulium on the performance of thulium-doped fibre amplifiers

Emami¹,

Abdul-Rashid²,

Ahmad³

et al. 2012

Ukr. J. Phys. Opt.

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Abstract. We study numerical models for different transverse thulium distribution profiles (TTDPs) characterising the fibres used in thulium-doped fibre amplifiers (TDFAs). Our models consider the overlap factor and the absorption/emission dynamics. Basing on the radial TTDP function of the form, we show that the TDFA gain increases with increasing  parameter and decreases as the  parameter increases from 1 up to 3 µm, due to the overlap factor which affects the absorption and emission dynamics of the TDFA. The overlap factor increases with increasing  and decreases with increasing  value. Finally, the noise figure increases as  does so, due to suppression of the amplified spontaneous emission.

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1.49-μm-band gain-shifted thulium-doped fiber amplifier for WDM transmission systems

Cited by 84 publications

References 32 publications

Thulium Doped Fiber Amplifier (TDFA) for S-band WDM Systems

Thulium Doped Fiber Amplifier (TDFA) for S-band WDM Systems

Optimisation of a two colour pumped Tm3+-doped ZBLAN fibre amplifier at 1.49 µm

Effect of transverse distribution profile of thulium on the performance of thulium-doped fibre amplifiers

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