Application of macro-bending for flat and broad gain EDFA
Document Type
Article
Publication Date
1-1-2010
Abstract
Gain flattened C-band erbium-doped fiber amplifier (EDFA) is demonstrated using a macro-bending method. Various bending diameter and length of high concentration aluminosilicate EDFA are theoretically and experimentally analyzed. By varying the bending radius and the length of the doped fiber, the gain saturation effect as well as the energy transfer from shorter wavelength to a longer wavelength can be controlled to obtain a flattened and broadened gain profile in the C-band region. The amplifier uses a 9 m long erbium-doped fiber (EDF) with erbium ion density of 1.6 1025 ions m-3 and bending radius of 6.5 mm as a gain medium. The gain variation of the EDFA is obtained within 1 dB over 25 nm bandwidth of C-band region.
Keywords
C-band, Erbium-doped fiber amplifier, Gain flattened, High concentration, Macrobending
Divisions
fac_eng,PHYSICS
Publication Title
Journal of Modern Optics
Volume
57
Issue
16
Publisher
Taylor & Francis