Six-wavelength Raman fibre laser for C- and L-band Raman amplification and dynamic gain flattening

Author

Mermelstein, M.D. ; Horn, C. ; Radic, S. ; Headley, C.

Author_Institution

OFS Fitel Labs., Somerset, NJ, USA

Volume

38

Issue

13

fYear

2002

fDate

6/20/2002 12:00:00 AM

Firstpage

636

Lastpage

638

Abstract

A novel six-wavelength Raman fibre laser exhibiting a dynamic gain flattening capability in the C + L optical telecommunications band is demonstrated. The power distribution in the six lasing wavelengths is adjusted with voltage-controlled Bragg-grating output couplers. The fibre laser was used as a pump source for distributed Raman amplification in several transmission span lengths. For example, the multiwavelength laser provides an on/off gain of 19 dB over a 100 km span of True-Wave RS optical fibre. The measured gain flatness is 1.7 dB peak-peak and the effective noise figure ranges from 1.6 to -5.2 dB in the 1530 to 1600 nm bandwidth

Keywords

Bragg gratings; Raman lasers; optical communication equipment; optical fibre amplifiers; optical fibre couplers; 100 km; 1530 to 1600 nm; 19 dB; C-band Raman amplification; L-band Raman amplification; True-Wave optical fibre; distributed Raman amplification; dynamic gain flattening; multiwavelength laser; noise figure; optical telecommunications band; power distribution; pump source; six-wavelength Raman fibre laser; spectral power distribution; successive Raman shifts; voltage-controlled Bragg-grating output couplers;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20020433

Filename

1015729