In situ design method for multichannel gain of a distributed Raman amplifier with multiwave OTDR

Author

Kim, Pilhan ; Park, Jaehyoung ; Yoon, Hosung ; Park, Jonghan ; Park, Namkyoo

Author_Institution

Opt. Commun. Syst. Lab., Seoul Nat. Univ., South Korea

Volume

14

Issue

12

fYear

2002

Firstpage

1683

Lastpage

1685

Abstract

We demonstrate a novel approach for the measurement of pump/signal waves interaction in the Raman amplifier (RA), with the use of multiwave optical time-domain reflectometry. With the application of obtained pump-evolution profiles to algorithms based on effective length recalibration, the multichannel Raman gain can easily be predicted with excellent accuracy for the undepleted, distributed RA. As a further extension of this algorithm, an in situ semi-analytic Raman-gain design method is also demonstrated.

Keywords

Raman lasers; distributed amplifiers; laser variables measurement; optical fibre amplifiers; optical pumping; optical time-domain reflectometry; wavelength division multiplexing; Raman fiber; distributed Raman amplifier; effective length recalibration; in situ design method; multichannel gain; multiwave OTDR; multiwave optical time-domain reflectometry; pump-evolution profiles; pump/signal waves interaction; wavelength-division multiplexing; Design methodology; Distributed amplifiers; Optical amplifiers; Optical fiber polarization; Optical pumping; Optical scattering; Semiconductor optical amplifiers; Stimulated emission; Time domain analysis; Wavelength measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.804661

Filename

1058251