Title :
Crosstalk caused by nonideal output filters in WDM lightwave systems
Author :
Phillips, M.R. ; Ott, D.M.
Author_Institution :
Scientific-Atlanta, Naperville, IL, USA
Abstract :
Crosstalk mechanisms due to imperfections of the output demultiplexer in a 1550-mm wavelength-division multiplexed system are explored for the cable television frequency range of 50-800 MHz. Analytic and experimental results show significant crosstalk caused by the output demultiplexer: transmission slope following cross-phase modulation in the fiber, polarization-dependent loss following nonlinear polarization rotation in the fiber, and imperfect channel isolation. The crosstalk mechanism of transmission slope following cross-phase modulation is newly identified here.
Keywords :
cable television; demultiplexing equipment; optical crosstalk; optical fibre subscriber loops; optical filters; optical modulation; phase modulation; telecommunication channels; wavelength division multiplexing; 1550 nm; 50 to 80 MHz; WDM lightwave systems; cable television frequency range; cross-phase modulation; crosstalk mechanism; imperfect channel isolation; nonideal output filters; nonlinear polarization rotation; output demultiplexer; polarization-dependent loss; transmission slope; wavelength-division multiplexed system; Fiber nonlinear optics; Nonlinear optics; Optical crosstalk; Optical fiber polarization; Optical filters; Optical modulation; Optical refraction; Optical scattering; Optical variables control; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
