Gain-flattened Er/sup 3+/-doped fiber amplifier for a WDM signal in the 1.57-1.60-μm wavelength region

Author

Ono, H. ; Yamada, M. ; Ohishi, Yasutake

Author_Institution

NTT Opto-Electron. Labs., Ibaraki, Japan

Volume

9

Issue

5

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

596

Lastpage

598

Abstract

A gain-flattened Er/sup 3+/-doped silica-based fiber amplifier (EDFA) has been constructed for a 1.58-μm band WDM signal. This EDFA exhibits uniform amplification characteristics with a gain excursion of 0.9 dB for a four-channel WDM signal in the 1.57-1.60 μm wavelength region. The average signal gain and the noise figure for the WDM signal are 29.5 dB and less than 6.3 dB, respectively. The use of this EDFA in parallel with a 1.55-μm band EDFA will expand the WDM transmission wavelength region.

Keywords

erbium; fibre lasers; infrared sources; laser transitions; optical transmitters; wavelength division multiplexing; /spl mu/m wavelength region; 1.57 to 1.6 mum; EDFA; Er/sup 3+/-doped silica-based fiber amplifier; WDM signal; WDM transmission wavelength region; average signal gain; four-channel WDM signal; gain excursion; gain-flattened Er/sup 3+/-doped fiber amplifier; noise figure; uniform amplification characteristics; Absorption; Bidirectional control; Diode lasers; Erbium; Erbium-doped fiber amplifier; Laser excitation; Noise figure; Optical fiber devices; Optical refraction; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.588134

Filename

588134