A novel method to improve noise figure for a wide bandwidth single stage L-band EDFA

Author

Yamashita, Takayoshi ; Yoshida, Manabu ; Tanaka, Hiroya ; Tanaka, Shoji ; Yazaki, Takahiro

Author_Institution

Mitsubishi Cable Industries, Hyogo, Japan

fYear

2002

fDate

17-22 Mar 2002

Firstpage

455

Lastpage

457

Abstract

To improve the noise characteristics and to increase the power conversion efficiency in the wide bandwidth single stage L-band EDFA, we proposed a new configuration of the EDFA which transmits 1.56 μm back-propagating noise suppression light to reduce the ASE generated around the output end of the EDF. As a result, the power conversion efficiency improved more than twice, and the NF was reduced to 3.6 dB compared to the efficient of conventional L-band EDFAs. Determining the wavelength for optimal back-propagating noise suppression light remains to be studied.

Keywords

erbium; laser noise; optical communication equipment; optical fibre amplifiers; superradiance; 1.56 micron; ASE reduction; Er-doped fibre amplifier; L-band EDFAs; back-propagating noise suppression light; noise characteristics; power conversion efficiency; wide bandwidth single stage L-band EDFA; Bandwidth; Character generation; Erbium-doped fiber amplifier; L-band; Noise figure; Noise generators; Noise measurement; Noise reduction; Power conversion; Power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002

Print_ISBN

1-55752-701-6

Type

conf

DOI

10.1109/OFC.2002.1036481

Filename

1036481