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Pr 3+ /Er 3+ Codoped Ge‐As‐Ga‐S Glasses as Dual‐Wavelength Fiber‐optic Amplifiers for 1.31 and 1.55 μm Windows
Author(s) -
Park Se Ho,
Lee Dong Chin,
Heo Jong,
Kim Hyoun Soo
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01370.x
Subject(s) - wavelength , fluorescence , materials science , energy transfer , erbium , amplifier , analytical chemistry (journal) , optical fiber , optical amplifier , doping , optics , optoelectronics , chemistry , atomic physics , physics , laser , cmos , chromatography
Fluorescence emissions at both 1.31 and 1.55 μm communication windows were observed from Pr 3+ /Er 3+ codoped Ge‐As‐Ga‐S glasses with a single wavelength pumping at 986 nm. The lifetime of the Er 3+ : 4 I 11/2 level decreased as the Pr 3+ concentration increased, and that of the Pr 3+ : 1 G 4 level increased as the Er 3+ concentration increased. Energy transfer from the Er 3+ : 4 I 11/2 level to the Pr 3+ : 1 G 4 level was responsible for emission of the 1.31 μm fluorescence from the Pr 3+ : 1 G 4 level. Ge‐As‐Ga‐S glasses that have been doped with Pr 3+ and Er 3+ cations are promising amplifier materials for both 1.31 and 1.55 μm communication windows.