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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 7,
  • Issue 5,
  • pp. 380-383
  • (2009)

Analysis of phase regeneration of DPSK/DQPSK signals based on phase-sensitive amplification

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Abstract

Amplification and phase regeneration can be realized using a phase-sensitive amplifier (PSA). The phase regeneration of differential phase-shift keying (DPSK) signals based on PSA is analyzed theoretically. We realize the phase regeneration of differential quadrature phase-shift keying (DQPSK) signals based on a structure using two balanced PSAs. Simulations show that nearly ideal phase regeneration can be achieved for the DPSK/DQPSK signals.

© 2009 Chinese Optics Letters

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