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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 1775–1778

All-optical demultiplexing of 16-QAM signals into QPSK tributaries using four-level optical phase quantizers

Adonis Bogris  »View Author Affiliations


Optics Letters, Vol. 39, Issue 7, pp. 1775-1778 (2014)
http://dx.doi.org/10.1364/OL.39.001775


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Abstract

The potential of four-level optical phase quantizers toward coherent processing of advanced modulation formats, such as 16-QAM, is proposed and numerically demonstrated. The work shows that phase quantization achieved in fiber-based phase-sensitive amplifiers can demultiplex 16-QAM into two quadrature phase shift keying (QPSK) signals, enabling subchannel switching. The numerical study highlights the impact of the quantizer transfer function on the performance of the demultiplexing process and numerically calculates the bit error rate for each QPSK tributary after the demultiplexing procedure.

© 2014 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(200.4740) Optics in computing : Optical processing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 21, 2013
Revised Manuscript: February 17, 2014
Manuscript Accepted: February 17, 2014
Published: March 19, 2014

Citation
Adonis Bogris, "All-optical demultiplexing of 16-QAM signals into QPSK tributaries using four-level optical phase quantizers," Opt. Lett. 39, 1775-1778 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-7-1775


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