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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 25664–25669

All-optical phase discrimination using SOA

Mark J. Power, Roderick P. Webb, and Robert J. Manning  »View Author Affiliations

Optics Express, Vol. 21, Issue 22, pp. 25664-25669 (2013)

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We describe the first experimental demonstration of a novel all-optical phase discrimination technique, which can separate the two orthogonal phase components of a signal onto different frequencies. This method exploits nonlinear mixing in a semiconductor optical amplifier (SOA) to separate a 10.65 Gbaud QPSK signal into two 10.65 Gb/s BPSK signals which are then demodulated using a delay interferometer (DI). Eye diagrams and spectral measurements verify correct operation and a conversion efficiency greater than 9 dB is observed on both output BPSK channels when compared with the input QPSK signal.

© 2013 Optical Society of America

OCIS Codes
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW

ToC Category:
Nonlinear Optics

Original Manuscript: July 18, 2013
Revised Manuscript: September 13, 2013
Manuscript Accepted: September 14, 2013
Published: October 21, 2013

Mark J. Power, Roderick P. Webb, and Robert J. Manning, "All-optical phase discrimination using SOA," Opt. Express 21, 25664-25669 (2013)

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