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Effect of channel spacing in an optical two-channel DPSK transmission system with optical amplifiers

: Gross Kopf, G.; Ludwig, R.

Electronics Letters 24 (1988), No.16, pp.1052-4
ISSN: 0013-5194
Journal Article
Fraunhofer HHI ()
crosstalk; optical links; phase shift keying; wideband amplifiers; channel spacing; optical two-channel; transmission system; optical amplifiers; broadband amplifiers; crosstalk mechanism; spectral overlap; four-wave mixing; 560 mbit/s

In a two-channel 560 Mbit/s DPSK system with optical broadband amplifiers the effect of channel spacing is investigated. The main crosstalk mechanism is independent of the amplifiers. It is caused by the spectral overlap of the two channels. No additional crosstalk due to four-wave mixing in the amplifier is found.