Title :
In-Band Crosstalk Transmission Penalties on 112-Gb/s PDM-QPSK Optical Links
Author :
Hsueh, Yu-Ting ; Stark, Andrew ; Filer, Mark ; Detwiler, Thomas ; Tibuleac, Sorin ; Chang, Gee-Kung ; Ralph, Stephen E.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
6/1/2011 12:00:00 AM
Abstract :
We demonstrate a method of quantifying the penalty of in-band crosstalk that accounts for the varying spectral content. Experimentally evaluated penalties for widely varying crosstalk spectral content are shown to be readily predetermined based on the crosstalk spectral content and power within a single 112 Gb/s polarization-division multiplexing quadrature phase-shift keying (PDM-QPSK) link. Optical signal-to-noise ratio (OSNR) penalties predicted using a weighted crosstalk correlated with experimental results to within 1 dB for 8 spans AllWave [standard single-mode fiber (SSMF)] or TrueWave [nonzero dispersion fiber (NZDF)] links with different dispersion maps. Moreover, we identify a nonlinearity-enhanced crosstalk effect that is evident in the nonlinear transport regime and induce additional crosstalk-induced ONSR penalty.
Keywords :
optical crosstalk; optical links; quadrature phase shift keying; PDM-QPSK optical links; bit rate 112 Gbit/s; in-band crosstalk transmission penalties; optical signal-to-noise ratio; polarization division multiplexing quadrature phase-shift keying; spectral content; standard single-mode fiber; Band pass filters; Crosstalk; Optical fiber filters; Optical fiber networks; Optical noise; Optical switches; Signal to noise ratio; Crosstalk; optical signal-to-noise ratio (OSNR); polarization-division multiplexing (PDM); quadrature phase-shift keying (QPSK); reconfigurable optical add–drop multiplexer (ROADM); wavelength selective switch (WSS);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2132700
