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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 12,
  • Issue 1,
  • pp. 010604-
  • (2014)

160-Gb/s NRZ-DQPSK optical transmission system employing QC-LDPC code

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Abstract

A quasi-cyclic low-density parity check (QC-LDPC) code is constructed by an improved stability of the shortest cycle algorithm for 160-Gb/s non-return zero differential quadrature phase shift keying (NRZ-DQPSK) optical transmission system with the fiber-based optical parametric amplifier (FOPA). The QC-LDPC code with stability of the shortest cycle reduces the bit error ratio (BER) to 10-14 and restrains the error floor effectively.

© 2014 Chinese Optics Letters

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