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Luminescence and relaxation processes in Er3+-doped glass fibers (1992)

Mita, Y. ; Yoshida, T. ; Yagami, T. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 71 (1992), S. 938-941

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Luminescence and related characteristics have been investigated for Er3+-doped silica glass fibers and for fibers and bulk material of calcium metaphosphate glass. Special interest has been directed toward elucidating relaxation processes leading to 1.5-μm light emission. Several emissions from higher excited states were investigated and excited-state lifetimes were also measured. Approximate radiative and nonradiative transition probabilities have been obtained for the excited levels. These results have confirmed that dominant transitions populating the lowest excited level are step-by-step nonradiative relaxations and that only a limited amount of energy is supplied via intermediate radiative transitions. It has also been shown that the 1.5-μm emission decay time constant elongates with increasing fiber length.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.351317

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