Optical Switch-Off Effect Using Excited State Absorption of Erbium-Doped Fibers
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概要
- 論文の詳細を見る
Optical switch-off in which the constant signal light is suddenly decreased at 1.4 and 25.0 W/cm^2 was demonstrated with an erbium-doped fiber using a single-wavelength control light. Discontinuous phenomena of optical switch-off have hysteresis and occur at a minimum or inflection point in the transmission curve. Negative intensity dependence, which causes the transmission to decrease as the laser intensity is increased, was observed at 787 nm, but not at 808 nm. Numerical analyses were carried out using a four-level double-absorption model. As a result, it was found that these phenomena take place because the absorption cross section from ^4I_<13/2> to ^2H_<11/2> is larger than that from ^4I_<15/2> to ^4I_<9/2>.
- 社団法人応用物理学会の論文
- 1992-05-30
著者
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Migitaka Masatoshi
Department Of Information And Control Engineering Toyota Technological Institute
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MAEDA Yoshinobu
Group, PRESTO, Research Development Corporation of Japan (JRDC)
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Maeda Yoshinobu
Group Presto Research Development Corporation Of Japan (jrdc):department Of Information And Control
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MIGITAKA Masatoshi
Department of Information and Control Engineering, Toyota Technological Institute
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