Structural detuning of absorption rate in doped fiber for the enhancement of power efficiency

Author

Lee, Hansuek ; Choi, Wonsub ; Park, Namkyoo

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea

Volume

16

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1468

Lastpage

1470

Abstract

We propose a novel doped fiber structure, for the enhancement of power conversion efficiency (PCE) in an L-band erbium-doped fiber amplifier. With proper adjustment of the doping profiles for the reduction of pump absorption rate, it becomes possible to optimize the pump evolution inside the doped fiber so as to improve the PCE, while suppressing the development of pump-depleting detrimental amplified spontaneous emission. Exemplary analysis shows significant enhancement in the saturation output power of more than 58.5%, when compared to conventional C-band erbium-doped fiber.

Keywords

doping profiles; erbium; laser beams; optical communication equipment; optical fibre amplifiers; optical pumping; optical tuning; superradiance; L-band erbium-doped fiber amplifier; amplified spontaneous emission; doping profiles; optical fiber communications; power efficiency enhancement; pump absorption; structural detuning; Absorption; Doped fiber amplifiers; Doping profiles; Erbium-doped fiber amplifier; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical fibers; Power conversion; Spontaneous emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.826814

Filename

1300634