The gain and optimal length in the erbium-doped fiber amplifiers with 1480 nm pumping

Author

Lin, Min-Chuan ; Chi, Sien

Author_Institution

Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

4

Issue

4

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

354

Lastpage

356

Abstract

The approximate analytic expressions for the gain and optimal length of the 1480-nm-pumped erbium-doped fiber amplifier with an arbitrary dopant distribution are obtained when the saturation by amplified spontaneous emission (ASE) is neglected. Numerical calculations show that the values predicted from the analytic expressions of the maximal gain and optimal fiber length as functions of input signal and pump powers are very accurate for narrow dopant distributions confined to the center of the fiber core.<>

Keywords

approximation theory; erbium; fibre lasers; laser theory; optical pumping; 1480 nm; Er doped fibre amplifiers; IR; amplified spontaneous emission; amplifier gain; approximate analytic expressions; arbitrary dopant distribution; core centre; fiber core; input signal; maximal gain; narrow dopant distributions; optical pumping; optical saturation; optimal fiber length; pump powers; Absorption; Equations; Erbium-doped fiber amplifier; Laser excitation; Optical fiber amplifiers; Optical fiber theory; Optical pumping; Signal analysis; Spontaneous emission; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.127211

Filename

127211