Detailed theoretical and experimental investigation of high-gain erbium-doped fiber amplifier

Author

Pedersen, Bo ; Dybdal, Kristen ; Hansen, Carsten Dam ; Bjarklev, Anders ; Povlsen, Jørn Hedegaard ; Vendeltorp-Pommer, Helle ; Larsen, Carl Christian

Author_Institution

Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark

Volume

2

Issue

12

fYear

1990

Firstpage

863

Lastpage

865

Abstract

A full-scale numerical model for the erbium-doped fiber amplifier has been developed that incorporates realistic index and erbium-concentration profiles as well as the spectral distribution of amplified spontaneous emission (ASE). The high accuracy of the model is demonstrated by comparison with a comprehensive set of data, including gain, ASE, and pump power, obtained for a well-characterized Er-Al-doped fiber. An absorption-to-emission cross-section ratio of 1.0 was measured at the gain peak. Pumping at 654 nm, the excited state absorption was observed to be insignificant. A high gain of 39.6 dB was achieved in the experiment.<>

Keywords

erbium; fibre lasers; optical pumping; superradiance; 39.6 dB; 654 nm; Er concentration profiles; absorption-to-emission cross-section ratio; amplified spontaneous emission; excited state absorption; full-scale numerical model; gain peak; high-gain Er:fibre amplifier; laser pumping; pump power; refractive index profiles; spectral distribution; Absorption; Erbium-doped fiber amplifier; Fluorescence; Gain measurement; Laser excitation; Numerical models; Power amplifiers; Power distribution; Spontaneous emission; Wavelength measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.62011

Filename

62011