Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Changlie Song"'
Publikováno v:
Frontiers of Optoelectronics in China. 1:329-335
The rate equations of Er-doped and Yb-Er co-doped systems pumped at 0.98 mm are presented, with consideration for the upconversion mechanisms such as cooperative upconversion, cross relaxation, and excited state absorption. A multi-theoretical model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad0b3e8a3c4ad7722c610eb597fe06fd
https://doi.org/10.1007/s12200-008-0081-6
https://doi.org/10.1007/s12200-008-0081-6
Publikováno v:
Sensors and Actuators B: Chemical. 134:313-316
The significant temperature effects on up-conversion emissions of Nd 3+ :Er 3+ :Yb 3+ co-doped borosilicate glass excited by a 978-nm semiconductor laser have been investigated and two-stage sensitization of Yb 3+ → Er 3+ → Nd 3+ is discussed. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8cbf09019be8b6357f3b0f318e763c2
https://doi.org/10.1016/j.snb.2008.05.003
https://doi.org/10.1016/j.snb.2008.05.003
Publikováno v:
Journal of Rare Earths. 26:31-34
The nonuniform Yb-Er Codoped Al2O3 films were prepared on SiO2/Si substrates using a medium frequency magnetron sputtering system. Two asymmetry targets in the system were introduced to realize the nonuniform dopant. Some curves of Photoluminescence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6062dcf02353b354625af8600c3b1ac4
https://doi.org/10.1016/s1002-0721(08)60031-9
https://doi.org/10.1016/s1002-0721(08)60031-9
Publikováno v:
Optical Materials. 30:513-516
Er3+–Yb3+ co-doped silicate glasses with high up-conversion efficiency were fabricated. A fivefold enhancement of the up-conversion fluorescence emission at 525 and 550 nm with a temperature rising in them, excited at 970 nm, is carried out. A mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b35fd66e8be402aae41ea0a558ac2277
https://doi.org/10.1016/j.optmat.2007.01.005
https://doi.org/10.1016/j.optmat.2007.01.005
Autor:
Qi Song, Gao Jingsong, Xuan-Ming Zheng, Hong Chen, Xiaoyi Wang, Changlie Song, Lijian Meng, Tongtong Wang, Chengren Li
Publikováno v:
Optics Communications. 271:137-141
We analyze the effect of the laser annealing on the crystallization of Er 3+ doped amorphous Al 2 O 3 thin films deposited on the silica-on-silicon substrate. These thin films were prepared by the microwave electron cyclotron resonance plasma source
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::237eb686da17aff61aeeb46aff6b5f5d
https://doi.org/10.1016/j.optcom.2006.09.036
https://doi.org/10.1016/j.optcom.2006.09.036
Autor:
Wanyu Ding, Jun Xu, Changlie Song, Chengren Li, Shufeng Li, Xin-Lu Deng, Qi Song, Jianyong Li
Publikováno v:
Optical Materials. 28:1344-1349
The Yb:Er co-doped Al2O3 thin film was deposited on oxidized silicon wafers by microwave ECR plasma source enhanced RF magnetron sputtering, and annealed from 800 °C to 1000 °C. The photoluminescence at 1.53 μm of thin film was obtained under room
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bf6139944f408e8c3e8853e95ec3ffc
https://doi.org/10.1016/j.optmat.2005.08.006
https://doi.org/10.1016/j.optmat.2005.08.006
Publikováno v:
Optics Communications. 248:1-6
A novel scheme is proposed to improve the gain performance of Erbium-doped waveguide amplifiers (EDWAs) by non-uniformly doping Er+3 ions along the propagating direction. Dependence of gain and pump efficiency on Er concentration is studied through a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::770a47ccf47257d901f986573e752cea
https://doi.org/10.1016/j.optcom.2004.11.087
https://doi.org/10.1016/j.optcom.2004.11.087
Publikováno v:
Optoelectronic Devices and Integration II.
Guiding modes and field distribution are calculated by finite element method. For three kinds of etched cross-section waveguide (rectangle, trapezoid, upside-down trapezoid) with 0.5μm and 1.0μm film thickness, mode characteristic, percentage of co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36f90f327588c805f87d7bd5a8aa4056
https://doi.org/10.1117/12.759400
https://doi.org/10.1117/12.759400
Publikováno v:
SPIE Proceedings.
Non-uniform designs for Erbium doped waveguide amplifiers (EDWA) and Yb: Er co-doped waveguide amplifiers (YEDWA) were presented based on the standard rate equations including six Er energy levels and two Yb energy levels. Numerical results were show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbfbacd8ee188dce4c84d00deaa162c8
https://doi.org/10.1117/12.637173
https://doi.org/10.1117/12.637173
Publikováno v:
SPIE Proceedings.
High efficient coupling between waveguide amplifier and single mode fiber is an important aspect for component integration in the optical communication. Mode matching degree between waveguide and fiber straightly affects coupling loss and actual ligh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb67da40e1e5e9c47e8fafb8286959fe
https://doi.org/10.1117/12.574615
https://doi.org/10.1117/12.574615