L. Moller et al., ISI mitigation using decision feedback loop demonstrated with PMD distorted 10Gbit/s signals, ELECTR LETT, 35(24), 1999, pp. 2092-2093
Electrical polarisation mode dispersion (PMD) and receiver bandwidth genera
ted intersymbol interference (ISI) mitigation using an analogue decision fe
edback loop for 10Gbit/s NRZ signals is demonstrated. ISI caused by fast-or
der PMD of up to 120ps differential group delay was equalised. Error free r
ecovery of signals with completely closed eye diagrams was achieved.