Effects of concentration on the performance of erbium-doped fiber amplifiers

Myśliński, P.; Nguyen, Dan T.; Chrostowski, J.

doi:10.1109/50.552118

Cited by 190 publications

(106 citation statements)

References 32 publications

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“…The excited ion decays non-radiatively to the 2 H 11/2 and 4 S 3/2 , due to the fast multi-phonon nonradiative decay of 4 F 7/2 level to the 2 H 11/2 state. In the ETU mechanism, it is possible to have two Er 3+ ions excited in the 4 The Er 3+ ion excited to the 4 I 11/2 level by ground state absorption (GSA) can also decay non-radiatively to the 4 I 13/2 followed by absorption of a second photon bringing the excited ion to the 4 F 9/2 level, with consequent 4 F 9/2 / 4 I 15/2 transition.…”

Section: Resultsmentioning

confidence: 99%

“…In 1987, Silversmith et al presented their results on the production of a continuous laser operating at 550 nm with pumping in the near infrared (NIR) on an Er 3+ doped YAlO 3 crystal at 77 K, with an output power of 1 mW for a pump of 200 mW. 33 Significant advances have been made with respect to Er 3+ or Er 3+ -Yb 3+ -doped LiYF 4 and LiLuF 4 crystals 34-36 featuring laser emission in the green region, after excitation with a Ti:sapphire laser. A CW UC laser operating in the green region was obtained by using an Er 3+ -doped LiLuF 4 crystal, which generated an output power of 213 mW (pumping with 2.6 W).…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8][9][10][11][12][13][14][15] The UC phenomenon was first demonstrated for Er 3+ , and the pioneering academic studies were performed on Er 3+ -doped fluoride crystals. 16 A key requirement for the achievement of efficient upconversion mechanisms is to place the Er 3+ ions in a host with low cutoff phonon energy, which allows for large lifetime of the excited state of the RE ions.…”

Section: Introductionmentioning

confidence: 99%

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Color tunability of intense upconversion emission from Er3+–Yb3+ co-doped SiO2–Ta2O5 glass ceramic planar waveguides

et al. 2012

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This work reports on the infrared-to-visible CW frequency upconversion from planar waveguides based on Er 3+ -Yb 3+ -doped 100-xSiO 2 -xTa 2 O 5 obtained by a sol-gel process and deposited onto a SiO 2 -Si substrate by dip-coating. Surface morphology and optical parameters of the planar waveguides were analyzed by atomic force microscopy and the m-line technique. The influence of the composition on the electronic properties of the glass-ceramic films was followed by the band gap ranging from 4.35 to 4.51 eV upon modification of the Ta 2 O 5 content. Intense green and red emissions were detected from the upconversion process for all the samples after excitation at 980 nm. The relative intensities of the emission bands around 550 nm and 665 nm, assigned to the 2 H 11/2 / 4 I 15/2 , 4 S 3/2 / 4 I 15/2 , and 4 F 9/2 / 4 I 15/2 transitions, depended on the tantalum oxide content and the power of the laser source at 980 nm. The upconversion dynamics were investigated as a function of the Ta 2 O 5 content and the number of photons involved in each emission process. Based on the upconversion emission spectra and 1931CIE chromaticity diagram, it is shown that color can be tailored by composition and pump power. The glass ceramic films are attractive materials for application in upconversion lasers and near infrared-to-visible upconverters in solar cells.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Color tunability of intense upconversion emission from Er3+–Yb3+ co-doped SiO2–Ta2O5 glass ceramic planar waveguides

et al. 2012

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“…It would thus appear that fiber 2 has a lower fraction of clustered erbium ions, perhaps surprising given that the erbium concentration is substantially higher in this fiber. Normally the degree of erbium ion clustering increases with an increase in the erbium ion concentration [3]. We explain the reduction in the clustering and hence unbleachable loss in this fiber as due to the presence of the Lu co-dopant.…”

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confidence: 93%

1.2 dB/cm gain in erbium:lutecium co-doped Al/P silica fibre

et al. 1998

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“…However, previous studies have shown that the tunability of EDFL depends very much on the active fiber length [5,6]. In addition, a concentration-related process called pair-induced quenching (PIQ) may significantly degrade the performance of erbium-doped fibers (EDFs) [9][10][11][12]. The effect of PIQ has also been found to cause a detrimental increase in the threshold, a reduction in conversion efficiency in EDFLs [13], as well as degradation in the power flatness of tunable EDFLs [14,15].…”

Section: Introductionmentioning

confidence: 99%

Effects of active fiber length on the tunability of erbium-doped fiber ring lasers

Dong¹,

Shum²,

Ngo³

et al. 2003

Opt. Express

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Abstract:We numerically investigate the effects of the active fiber length on the tunability of erbium-doped fiber ring lasers for the cases of with and without pair-induced quenching (PIQ). The numerical results are confirmed by experiments. We have found that the tuning range shifts from C-band to L-band with an increase in the active fiber length. A maximum tuning range of over 100 nm, covering both the C-and L-band, can be achieved with an optimized active fiber length. It is also found that the PIQ is favorable for Lband lasing though it reduces the output power and degrades the power flatness. Using these findings, a novel method employing active fiber length switching is proposed to extend the tuning range of the laser, which is only limited by the free spectral range (FSR) of the tunable filter. A large tuning range of 102 nm is obtained using a tunable fiber Fabry-Perot filter with an FSR of 75 nm.

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Effects of concentration on the performance of erbium-doped fiber amplifiers

Cited by 190 publications

References 32 publications

Color tunability of intense upconversion emission from Er3+–Yb3+ co-doped SiO2–Ta2O5 glass ceramic planar waveguides

Color tunability of intense upconversion emission from Er3+–Yb3+ co-doped SiO2–Ta2O5 glass ceramic planar waveguides

1.2 dB/cm gain in erbium:lutecium co-doped Al/P silica fibre

Effects of active fiber length on the tunability of erbium-doped fiber ring lasers

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