Two-stage S-band erbium-doped fiber amplifier using a depressed-cladding fiber
A two-stage short-wavelength-band erbium-doped fiber amplifier (S-band EDFA) is demonstrated using a depressed-cladding erbium-doped fiber (EDF). The EDF has a fundamental-mode cutoff wavelength of about 1525 nm in order to suppress amplified spontaneous emission at the longer wavelength. The highes...
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John Wiley & Sons
2005
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