Experimental Observation of Inter-Modal Cross-Phase Modulation in Few-Mode Fibers

Author

Essiambre, R. ; Mestre, M.A. ; Ryf, R. ; Gnauck, A.H. ; Tkach, R.W. ; Chraplyvy, A.R. ; Yi Sun ; Xinli Jiang ; Lingle, Robert

Author_Institution

Bell Labs., Alcatel-Lucent, Holmdel, NJ, USA

Volume

25

Issue

6

fYear

2013

fDate

15-Mar-13

Firstpage

535

Lastpage

538

Abstract

We experimentally demonstrate a broadband nonlinear interaction between a data-modulated pump and an unmodulated probe occupying different spatial modes of a few-mode fiber. This nonlinear interaction is attributed to inter-modal cross-phase modulation (IM-XPM) and found to be maximum when signal and probe have similar group velocities. This can correspond to a few THz of wavelength separation between waves. The magnitude of the measured IM-XPM is found to be comparable to the measured intra-modal XPM with similar nonlinear coefficients. A comparison to a semi-analytical model of XPM shows good agreement with the measurements.

Keywords

nonlinear optics; optical fibre communication; optical fibre dispersion; optical modulation; optical pumping; phase modulation; wavelength division multiplexing; broadband nonlinear interaction; data-modulated pump probe; few-mode fibers; group velocity; intermodal cross-phase modulation; nonlinear coefficients; optical fiber communication; optical fiber dispersion; spatial modes; spatial multiplexing; wavelength separation; MIMO; Modulation; Multiplexing; Nonlinear optics; Photonics; Probes; Wavelength measurement; Cross-phase modulation; fiber nonlinear optics; optical fiber communication; optical fiber dispersion;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2242879

Filename

6422324