Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 13, Issue 3, Pages 197-199Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/68.914319
Keywords
high-concentration erbium-doped devices; optical amplifiers; optical fiber amplifiers; rare-earth doped materials
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The performances of high-concentration Er3+- doped phosphate fiber amplifiers are reported, The amplifiers are characterized in terms of gain, noise figure, and signal saturation power in a co-propagating pump configuration. A net gain of 21 dB and a gain per unit length 3 dB/cm are achieved in a 71-mm Er3+-doped phosphate fiber.
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