&lt;title&gt;Spectroscopic properties of Er3+-doped glasses for the realization of active waveguides by ion-exchange technique&lt;/title&gt;

Cognolato, L.; Bernardi, Carlo S. De; Ferraris, Monica; Gnazzo, A.; Morasca, S.; Scarano, Domenica

doi:10.1117/12.46043

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where hn p is the pump photon energy, s a and s e are the absorption and emission cross sections at 1.48 mm, 17 and I p is the pump intensity, which is estimated by use of an average mode diameter of ϳ10 mm. 13 Note that the stimulated emission term R # n 2 of pump light has to be included because the pump laser spectrum partly overlaps with the 4 I 13/2 !…”

Section: Cooperative Upconversion a Results And Analysismentioning

confidence: 99%

See 1 more Smart Citation

Cooperative upconversion in erbium-implanted soda-lime silicate glass optical waveguides

et al. 1995

View full text Add to dashboard Cite

Soda-lime silicate glass has been locally doped with 0.2-at. % erbium by 3.0-and 5.0-MeV ion implantation. Single-mode fiber-compatible optical waveguides were then fabricated by use of Na 1 $ K 1 ion exchange. Characteristic photoluminescence (PL) of Er 31 centered at 1.54 mm is observed on excitation at 1.48 mm. For low pump intensity the PL decay is nearly single exponential with a lifetime of 7.2 ms. At high intensity it becomes nonexponential as a result of cooperative upconversion, an interaction between excited Er ions. Self-consistent modeling of the PL intensity and decay data yields an upconversion coefficient of 3.2 6 0.8 3 10 224 m 3 ͞s. The effect of upconversion on optical gain is shown and discussed. An extrapolation of measured optical gain shows that 1 dB͞cm of net gain is possible in the present Er-implanted soda-lime glass.

show abstract

Section: Cooperative Upconversion a Results And Analysismentioning

confidence: 99%

“…Cross sections for absorption and emission at pump and signal wavelengths were taken from Ref. 17, and a typical value of 1.0 dB͞cm was assumed for the intrinsic waveguide loss. 9 Excited-state absorption was neglected.…”

Section: Optical Amplification a Results And Analysismentioning

confidence: 99%

Cooperative upconversion in erbium-implanted soda-lime silicate glass optical waveguides

et al. 1995

View full text Add to dashboard Cite

show abstract

“…These results show that phosphorous is not the best material to be used to improve the spectroscopic properties of the silica/titania matrix, as for erbium doping level as small as 0.25 mole%, the lifetime in an Er doped silicate glass should be between 5 and 10 ms [8]. The low fluorescence lifetime can be also explained by non-radiative deexcitations due to high phonon energy corresponding to the P---O bond.…”

Section: Erbium Doped Planar Waveguidesmentioning

confidence: 91%

Improved composition for sol-gel rare-earth doped planar waveguides

Barbier¹,

Orignac

et al. 1997

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

Abstract.A multilayer sol-gel process has been developed in order to make highly doped rare-earth planar waveguides on silica or silicon substrates.Starting with a small range of constituents, such as SiO2, TiO2, PEO5 and A1203, we show that a large variety of gel compositions, with different spectroscopic behaviour, can be made when doped with rare-earths.We have doped the sol-gel films with neodymium and we have optimized their compositions by measuring the neodymium fluorescence lifetime. For a composition with 10 atom% of phosphorous, the lifetime evolution with neodymium concentration was studied and a quenching concentration was found at 1% of neodymium. We have also shown the strong influence of phosphorous or aluminium in the sol composition on the fluorescence lifetime, for a given neodymium concentration. First results on similar planar waveguides, doped with erbium, are also presented.The stability of the fluorescence lifetime over a long period of time is an other important point to be checked for these new materials: the lifetime evolution over a 9 months measurement period is presented.Keywords: sol-gel, neodymium and erbium doped planar waveguide, fluorescence lifetime measurement, phosphorous and aluminium codoping

show abstract

Sol–gel silica/titania-on-silicon Er/Yb-doped waveguides for optical amplification at 1.5 μm

Orignac¹,

Barbier²,

Du³

et al. 1999

Optical Materials

251

100

View full text Add to dashboard Cite

<title>Spectroscopic properties of Er3+-doped glasses for the realization of active waveguides by ion-exchange technique</title>

Cited by 4 publications

References 0 publications

Cooperative upconversion in erbium-implanted soda-lime silicate glass optical waveguides

Cooperative upconversion in erbium-implanted soda-lime silicate glass optical waveguides

Improved composition for sol-gel rare-earth doped planar waveguides

Sol–gel silica/titania-on-silicon Er/Yb-doped waveguides for optical amplification at 1.5 μm

Contact Info

Product

Resources

About