Optical channel monitoring technique using phase-modulated pilot tones

Author

Park, K.J. ; Ji, H.-C. ; Chung, Y.C.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

17

Issue

11

fYear

2005

Firstpage

2481

Lastpage

2483

Abstract

We report on the pilot-tone-based optical channel monitoring technique for use in wavelength-division-multiplexing (WDM) networks. The proposed technique can monitor the wavelengths of WDM signals using phase-modulated pilot tones. Unlike the previously proposed monitoring technique using amplitude-modulated pilot tones, the proposed technique does not suffer from the cross-gain modulation and stimulated Raman scattering. The results show that the proposed technique could not be deteriorated by the chromatic dispersion.

Keywords

optical fibre networks; optical modulation; phase modulation; telecommunication channels; wavelength division multiplexing; amplitude-modulated pilot tones; chromatic dispersion; cross-gain modulation; optical channel monitoring; phase-modulated pilot tones; stimulated Raman scattering; wavelength-division-multiplexing; Amplitude modulation; Monitoring; Nonlinear optics; Optical fiber networks; Optical modulation; Optical scattering; Raman scattering; Stimulated emission; WDM networks; Wavelength division multiplexing; Channel monitoring; phase modulation; pilot tone; wavelength;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.857243

Filename

1522360