Interwavelength-band nonlinear interactions and their suppression in multiwavelength-band WDM transmission systems

• Published in: Journal of lightwave technology Vol. 17; no. 11; pp. 2249 - 2260
• Main Authors: Kani, J., Jinno, M., Sakamoto, T., Aisawa, S., Fukui, M., Hattori, K., Oguchi, K.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.11.1999; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Bands; Degradation; Erbium-doped fiber amplifier; Exact sciences and technology; Fibers; Focusing; Four-wave mixing; Guidelines; Modulation; Nonlinearity; Optical fiber amplifiers; Optical fiber communication; Optical fibers; Raman scattering; Stimulated emission; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Wavelength division multiplexing; Waveform; Experimental result; Numerical analysis; Stimulated Raman scattering; Single mode fiber; Optical telecommunication; Dispersion shifted fiber; Telecommunication network; Wavelength division multiplexing; Optical fiber; Four wave mixing
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/50.803017

We describe the effects of interwavelength-band nonlinear interactions, such as nondegenerate four-wave mixing, stimulated Raman scattering, and cross-phase modulation in multiwavelength-band WDM transmission systems. Through both numerical analysis and transmission experiments, these interactions are shown to cause serious degradation, especially when the walk-off between the utilized wavelength bands is small. Focusing on suppressing both these interwavelength-band nonlinear interactions and traditional intrawavelength-band nonlinear interactions, we present the guidelines for designing ultra wide-band WDM transmission systems over various types of fibers. The guidelines include band-by band bidirectional transmission, which offers large walk-off and minimizes the degradation caused by interwavelength-band nonlinear interactions. Finally, several dual-wavelength-band transmissions over dispersion-shifted fibers and standard single-mode fibers are demonstrated according to the guidelines.