Abstract
Using differential detection, we perform polarization-multiplexing 160-Gb/s
optical non-return-to-zero (NRZ) differential quadrature phase shift keying (DQPSK)
signal transmission over 100-km standard single mode fiber at a bit error rate (BER)
of less than 10-9. The enabling technology includes clock recovery, fine dispersion
compensation, and polarization tracking for de-multiplexing. Furthermore, a hybrid
clock recovery scheme is proposed. The scheme is realized with ordinary devices
using an optoelectrical modulator to down-convert the clock frequency and a
phase-locked loop for filtering, which can provide an indication signal that
simultaneously monitors residual dispersion and tracking polarization.
© 2011 Chinese Optics Letters
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription