Gain peaking in a chain of 980 nm-pumped erbium-doped fiber amplifiers

Author

Smart, R.G. ; Sulhoff, J.W. ; Zyskind, J.L. ; Nagel, J.A. ; DiGiovanni, D.J.

Author_Institution

Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA

Volume

6

Issue

3

fYear

1994

fDate

3/1/1994 12:00:00 AM

Firstpage

380

Lastpage

382

Abstract

We report the results of an experimental study of the signal-to-noise ratio and gain peaking in a chain of four 980 nm-pumped erbium-doped fiber amplifiers. Over the wavelength range 1540 nm to 1562 nm, there is less than 3 dB variation in signal-to-noise ratio and 7 dB variation in output power. Between 1544 nm and 1558 nm the signal-to-noise ratio varies by less than 1 dB. These results suggest that the high inversion resulting from the use of 980 nm pumping will mitigate the effects of gain nonuniformity and may obviate the need for gain equalization in many applications.<>

Keywords

erbium; fibre lasers; laser transitions; optical pumping; population inversion; 1540 to 1562 nm; 980 nm; 980 nm-pumped erbium-doped fiber amplifier chain; Al/sub 2/O/sub 3/-GeO/sub 2/-SiO/sub 2/:Er; gain equalization; gain nonuniformity; gain peaking; high inversion; output power; signal-to-noise ratio; Erbium-doped fiber amplifier; Laser excitation; Optical amplifiers; Optical fiber amplifiers; Optical fiber networks; Optical transmitters; Pump lasers; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.275494

Filename

275494