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

Publication Title

Journal of Modern Optics

ISSN

0950-0340

Divisions

fac_eng,PHYSICS

Volume

57

Issue

16

Publisher

Taylor & Francis

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