Author/Authors :
S.، Chandrasekhar, نويسنده , , A.H.، Gnauck, نويسنده , , G.، Raybon, نويسنده , , J.، Leuthold, نويسنده , , D.M.، Gill, نويسنده , , X.، Wei, نويسنده , , X.، Liu, نويسنده , , U.-V.، Koc, نويسنده ,
Abstract :
Optical (pi)/2 differential phase-shift keying (pi)/2-DPSK) is a modulation technique which encodes the binary information in relative phase shifts of (pi)/2 and -(pi)/2 between adjacent optical pulses. Here, we experimentally demonstrate (pi)/2-DPSK at the bit rate of 42.7 Gb/s. It is found that (pi)/2-DPSK outperforms conventional DPSK in the presence of strong optical filtering and polarization-mode dispersion (PMD).