Zobrazeno 1 - 10
of 48
pro vyhledávání: '"J.Y. Allain"'
Publikováno v:
Journal of Non-Crystalline Solids. :245-250
Up-conversion processes are studied in (Yb 3+ , Tb 3+ ) co-doped fluorophosphate glasses. These glasses contain a large concentration of terbium fluoride, up to 36 mol%, and still luminesc. Samples are excited at 980 nm, within the Yb 3+ absorption b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::670a145471f9a6298e97a1d4903d503a
https://doi.org/10.1016/s0022-3093(96)00667-9
https://doi.org/10.1016/s0022-3093(96)00667-9
Publikováno v:
Journal of Non-Crystalline Solids. 161:290-293
A net gain of 20 dB at 2722 nm has been obtained in an Er 3+ -Pr 3+ co-doped fluoride fibre pumped at 800 nm. Co-doping the fluoride fibre with Er and Pr instead of doping with Er only improved the net gain of the optical amplifier made with this fib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::268f01797a366fb6c61d28a2dad16032
https://doi.org/10.1016/0022-3093(93)90720-i
https://doi.org/10.1016/0022-3093(93)90720-i
Publikováno v:
Materials Science Forum. :515-520
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80280c6351b84ad9f4584e1acb155397
https://doi.org/10.4028/www.scientific.net/msf.67-68.515
https://doi.org/10.4028/www.scientific.net/msf.67-68.515
Publikováno v:
Electronics Letters. 30:1019-1020
Diode pumped continuous wave laser oscillation at wavelengths between 1.9 and 2.1 mu m in a thulium doped silica fibre that uses Bragg reflectors for cavity feedback is reported. These lasers exhibit low pump power thresholds and quantum efficiencies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28bf493e933aa4ce9a82deea46cdde41
https://doi.org/10.1049/el:19940702
https://doi.org/10.1049/el:19940702
Publikováno v:
Electronics Letters. 28:988-989
Efficient laser emission has been observed around 1.02 mu m in a monomode ZBLAN fibre doped with ytterbium. Various concentrations, fibre lengths and cavity configurations have been studied. Differences between silica and ZBLAN are highlighted.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f3612d1fe8841fc53dfb78bb6e143f9
https://doi.org/10.1049/el:19920628
https://doi.org/10.1049/el:19920628
Publikováno v:
Electronics Letters. 29:309
High power (>0.2 W) and high quantum efficiency (>80%) silica fibre lasers doped with ytterbium and operating at 1.02 μm are presented. The laser cavity is closed by two externally written gratings. The pump wavelength range is extended down to 0.85
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d75cca76c1a77685e8e339217bdac04
https://doi.org/10.1049/el:19930211
https://doi.org/10.1049/el:19930211
Publikováno v:
Electronics Letters. 28:111
50mW of green power and slope efficiency against launched pump power of 15% have been obtained at room temperature in an erbium doped fluorozirconate fibre pumped at 0.97μm. Lasing tunability domain, pump wavelength tunability and the role of colasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01aa31a1dfe67075a04e27126306de8a
https://doi.org/10.1049/el:19920068
https://doi.org/10.1049/el:19920068
Publikováno v:
Electronics Letters. 27:445
The influence of Pr3+ as a deactivating ion to shorten the lifetime of the 4I13/2 state of Er3+ is studied in fluoride glass (ZBLAN) fibres. The influence of clusters is shown to be of primary importance. Lasing performances of the Er3+4I11/2→4I13/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e24486ec89df37fa82d10793507ba0e4
https://doi.org/10.1049/el:19910281
https://doi.org/10.1049/el:19910281
Publikováno v:
Electronics Letters. 27:189
CW lasing operation of a praseodymium-doped fluorozirconate fibre laser at 610, 635, 695, 715, 885 and 910 nm is reported, together with large tunability domains around these wavelengths. Output powers in excess of 20 mW at 610 nm, 50 mW at 715 nm an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5545cc0a26678f939166feefd642d3c
https://doi.org/10.1049/el:19910121
https://doi.org/10.1049/el:19910121
Publikováno v:
Electronics Letters. 27:1513
Laser oscillation at 2.04 μm has been observed in a thulium-sensitised holmium doped singlemode fluorozirconate fibre. 52% slope efficiency and 250 mW output power were obtained with a pump at 0.82 μm. Crossrelaxation in thulium gives a pump quantu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c810cac64724926ebaed9324f4a6aeac
https://doi.org/10.1049/el:19910951
https://doi.org/10.1049/el:19910951