Thulium-doped silica-fiber based S-band amplifiers: pump power and host composition effect on the 3 H 4 => 3 F 4 band

0105928 - URE-Y 20040111 CH eng A - Abstrakt
Simpson, D. - Nguyen, T. - Baxter, G. - Collins, S. - Faure, B. - Blanc, W. - Dussardier, B. - Monnom, G. - Peterka, Pavel
Thulium-doped silica-fiber based S-band amplifiers: pump power and host composition effect on the 3 H 4 => 3 F 4 band.
EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources 2004. [Lausanne]: [European Physical Society], 2004. s. WeC14.
[EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources. 29.08.2004-03.09.2004, Lausanne]
Výzkumný záměr: CEZ:AV0Z2067918
Klíčová slova: optical fibre amplifiers * optical communication
Kód oboru RIV: BH - Optika, masery a lasery
http://europhoton.epfl.ch

Thulium-doped fiber amplifiers are promising candidates for the optical amplification in the S-band /1460-1530 nm/. In this work we show that the 3F4 and 3H4 energy level lifetimes of thulium exhibit a pump power dependence in silica glass hosts due to the upconversion process 3F4, 3F4=>3H4, 3H6. The increase of radiative efficiency of the 3H4=>3F4 transition up to 160 percent, compared to pure silica host, through the incorporation of aluminium and post drawing annealing is demonstrated.
Trvalý link: http://hdl.handle.net/11104/0013116