Impact of modulation frequency on cross-phase modulation effect in intensity modulation-direct detection WDM systems
- 1 September 1998
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 10 (9) , 1268-1270
- https://doi.org/10.1109/68.705612
Abstract
The impact of modulation frequency on the crossphase modulation (XPM) effect in intensity modulation (IM)-direct detection wavelength-division multiplexing systems is investigated theoretically and numerically. A simple expression for IM is derived, verified by simulation and its validity is presented. The dependence of XPM-induced IM on the fiber length, fiber dispersion, channel separation and pump modulation frequency is assessed. It is shown that at very low frequency the walkoff effect has almost no influence on the XPM-induced IM efficiency which increases with the square of the frequency; at higher frequency the IM efficiency can be reduced significantly by the walkoff and scales linearly with modulation frequency.Keywords
This publication has 6 references indexed in Scilit:
- Experimental investigation of signal distortions induced by cross-phase modulation combined with dispersionIEEE Photonics Technology Letters, 1997
- Analysis of cross-phase modulation (XPM) effecton WDM transmission performanceElectronics Letters, 1997
- Cross-phase modulation in fiber links with multiple optical amplifiers and dispersion compensatorsJournal of Lightwave Technology, 1996
- Dependence of cross-phase modulation on channel number in fiber WDM systemsJournal of Lightwave Technology, 1994
- Small signal analysis for dispersive optical fiber communication systemsJournal of Lightwave Technology, 1992
- Phase modulation to amplitude modulation conversion of CW laser light in optical fibresElectronics Letters, 1986