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System limitations due to four-wave mixing in single-mode optical fibres

: Waarts, R.G.; Braun, R.-P.

Electronics Letters 22 (1986), No.16, pp.873-5
ISSN: 0013-5194
Journal Article
Fraunhofer HHI ()
optical fibres; optical links; four-wave mixing; single-mode optical fibres; multichannel coherent optical system; 100-channel monomode fibre link; channel separation; crosstalk level; input power; subscriber line; trunk line; low-loss dispersion-shifted fibre

The transmission of a multichannel coherent optical system is limited by four-wave mixing. In a 100-channel monomode fibre link, 5 GHz channel separation, -20 dB crosstalk level, the input power per channel should be lower than 0 to -5 dBm for a subscriber line (5 km), or -10 dBm for a trunk line (>100 km), employing low-loss dispersion-shifted fibre.