Superfluorescence from Yb- and Yb–Er-doped phosphotellurite glass fibres

Nandi, P.; Jose, Gin

doi:10.1016/j.yofte.2008.01.004

Cited by 13 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One can also notice that the shape of the emission bands changes due to changes in the fiber length: for long fibers (3 and 7 cm), the bands are not anymore flat and uniform, the emission bands exhibit pronounced peaks and dips, the number of which consistently increases with fiber length. These changes in the emission spectra induced by the changes in the fiber lengths are a clear sign of spectral hole burning effect as reported in [31]. These changes are due to strong reabsorption of the peak wavelength at 974 nm by Yb 3+ ions and at 1534 nm by Er 3+ ions originated from high concentration of the rare-earth ions (1.58·10 20 cm −3 for Er and 4.75·10 20 cm −3 for Yb) and insufficient pump level to stimulate luminescence.…”

Section: Resultssupporting

confidence: 58%

Super-luminescence and spectral hole burning effect in ultra-short length Er/Yb-doped phosphate fiber

Gumenyuk

Poudel

Jouan

et al. 2017

Opt. Mater. Express

View full text Add to dashboard Cite

International audienceWe demonstrate super-broad luminescence over 70 nm of bandwidth and spectral hole-burning effect obtained in just a few cm of novel air-clad, highly concentrated Er/Yb-doped phosphate fiber. The fiber is drawn from preforms of glasses within the P2O5 - SrO - Na2O composition. The fabrication process, thermal, structural, and optical properties of the fiber are described. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreemen

show abstract

Section: Resultssupporting

confidence: 58%

Super-luminescence and spectral hole burning effect in ultra-short length Er/Yb-doped phosphate fiber

Gumenyuk

Poudel

Jouan

et al. 2017

Opt. Mater. Express

View full text Add to dashboard Cite

show abstract

“…In such a configuration, neodymium ions function as donors, supplying a portion of their excitation energy in the course of Nd 3+ →Yb 3+ resonant energy transfer. Spectral adjustment of the doping ions results in a broad luminescence spectrum, which allows to manufacture fibre lasers working as sources of amplified spontaneous emission (ASE) [17,18]. Excitation of neodymium ions with 808 nm wavelength leads to the population of 4 F 3/2 energy state, from which the emission in the band of 890 nm proceeds corresponding to the transition of photons to the ground state 4 I 9/2 , with simultaneous energy transfer to the excited state 2 F 5/2 in Yb 3+ ions.…”

Section: Broadband Luminescence At 1µm Wavelength In Ndmentioning

confidence: 99%

Active optical fibres for application in laser and broadband ASE sources

Dorosz¹,

Dorosz²,

Zając³

et al. 2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

View full text Add to dashboard Cite

Abstract. The article brings into focus the present state of technology employing active fibres doped with rare earth (RE) ions for applications requiring power supply of several dozen watts and broadband ASE sources. Current trends in development of glasses and in construction of active fibres used in fibre sources of radiation within VIS-NIR range are presented. Technological constraints in the doping of fibre core glasses are discussed, with particular consideration of optimal RE concentration for technical applications. Characteristics of glasses are offered, and the glasses are used for manufacturing optical fibres with luminescence within the visible as well as near-and mid-infrared ranges. Also, requirements and luminescence properties concerning glasses co-doped with e.g. Nd 3+ /Yb 3+ ,Tm 3+ /Ho 3+ and Yb 3+ /Tb 3+ are discussed. Results of research on the impact of technological parameters of glass matrices on luminescence properties of core glasses and optical fibres are quoted. For the doped glasses of which luminescence in a wide spectral range is desired, conditions for their processing into optical fibre systems are mentioned. Additionally, the impact of phonon energy in the glass on producing emission in a specified spectral range is analyzed. Furthermore, the article presents directions of technological studies to solve problems persisting in the phase of glass matrix design, as well as in determining the influence of fibre drawing process on the luminescence properties of core glasses and optical fibres, confirming the differences in luminescence stemming from the drawing process. Finally, some original designs of core glasses and active multicore fibre systems devised for construction of fibre radiation sources are presented.

show abstract

“…Фосфатные волокна успешно зарекомендовали себя в качестве усиливающей среды в волоконных лазерах [9,[12][13][14] и усилителях [15][16][17], в то же время исследованию широкополосных источников из-лучения на основе фосфатных волокон посвящено незначительное ко-личество работ [18,19].…”

Section: Introductionunclassified