Study of a PMD Tolerance Extension by InP HBT Analog EDC IC without Adaptive Control in 43G DQPSK Transmission

Study of a PMD Tolerance Extension by InP HBT Analog EDC IC without Adaptive Control in 43G DQPSK Transmission

We experimentally studied the polarization mode dispersion (PMD) tolerance of an feed-forward equalizer (FFE) electronic dispersion compensation (EDC) IC in the absence of adaptive control, in 43-Gbit/s RZ-DQPSK transmission. Using a 3-tap FFE IC composed of InP HBTs, differential group delay (DGD)...

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Veröffentlicht in:IEICE Transactions on Electronics 2010/05/01, Vol.E93.C(5), pp.573-578
Hauptverfasser: ITOH, Toshihiro, SANO, Kimikazu, FUKUYAMA, Hiroyuki, MURATA, Koichi
Format: Artikel
Sprache:eng
Schlagworte:
43G RZ-DQPSK
Adaptive control
electronic dispersion compensation
Electronics
feed-forward equalizer
Group delay
Indium phosphides
Integrated circuits
Polarization
Polarization mode dispersion
Tolerances
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Zusammenfassung:We experimentally studied the polarization mode dispersion (PMD) tolerance of an feed-forward equalizer (FFE) electronic dispersion compensation (EDC) IC in the absence of adaptive control, in 43-Gbit/s RZ-DQPSK transmission. Using a 3-tap FFE IC composed of InP HBTs, differential group delay (DGD) tolerance at a 2-dB Q penalty is shown to be extended from 25ps to up to 29ps. When a polarization scrambler is used, the tolerance is further extended to 31ps. This value is close to the tolerance obtained with adaptive control, without a polarization scrambler.
ISSN:0916-8524
1745-1353
1745-1353
DOI:10.1587/transele.E93.C.573