Flat-gain fiber Raman amplifiers using equally spaced pumps

Author

Hu, Jonathan ; Marks, Brian S. ; Menyuk, Curtis R.

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., Univ. of Maryland Baltimore County, MD, USA

Volume

22

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1519

Lastpage

1522

Abstract

This paper analyzes the gain flatness of multiwavelength pumped fiber Raman amplifiers using equally spaced pumps with both a fixed and an optimized central pump wavelength. The signal gain ripple using equally spaced pumps is compared with the case in which the pump wavelengths are allowed to vary for two, four, and eight pumps with 20-, 40-, and 80-nm signal bandwidths. The paper shows that using an optimized central pump wavelength with equal pump spacing simplifies system design, while the gain ripple is no more than 0.4 dB larger than the ripple obtained when the pump wavelengths are optimized for the cases considered.

Keywords

Raman lasers; Raman spectra; optical fibre amplifiers; optical fibre communication; optical pumping; Raman scattering; equally spaced pumps; fiber Raman amplifiers; gain flatness; optical fiber communication; pump wavelengths; signal gain ripple; system design; Bandwidth; Computer science; Design optimization; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical fibers; Raman scattering; Stimulated emission; US Department of Transportation; Modeling; Raman scattering; optical fiber amplifiers; optical fiber communication;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2004.829187

Filename

1303726