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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 17 — Sep. 1, 2013
  • pp: 3350–3353

Demonstration of reconfigurable optical generation of higher-order modulation formats up to 64 QAM using optical nonlinearity

Mohammad Reza Chitgarha, Salman Khaleghi, Zahra Bakhtiari, Morteza Ziyadi, Ori Gerstel, Loukas Paraschis, Carsten Langrock, Martin M. Fejer, and Alan E. Willner  »View Author Affiliations


Optics Letters, Vol. 38, Issue 17, pp. 3350-3353 (2013)
http://dx.doi.org/10.1364/OL.38.003350


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Abstract

We demonstrate a reconfigurable optical transmitter of higher-order modulation formats including pulse-amplitude-modulation (PAM) signals and quadrature-amplitude-modulation (QAM) signals. We generated six different modulation formats by multiplexing 10Gbit/s on–off-keying (OOK) signals (10 Gbaud binary phase-shift keying, 4-PAM, 8-PAM quadrature phase-shift keying (QPSK), 16-QAM and 16-star-QAM with error-vector magnitudes (EVMs) of 8.1%, 7.5%, 7.8%, 8.2%, 7.2%, and 6.9%, respectively) and 80Gbit/s 16-QAM with an EVM of 8.5%, as well as 120Gbit/s 64-QAM with an EVM of 7.1%, using two or three 40Gbit/s QPSK signals, respectively. We also successfully transmitted the generated 16-QAM signals through a 100 km transmission line with negligible power penalty.

© 2013 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 27, 2013
Manuscript Accepted: July 28, 2013
Published: August 26, 2013

Citation
Mohammad Reza Chitgarha, Salman Khaleghi, Zahra Bakhtiari, Morteza Ziyadi, Ori Gerstel, Loukas Paraschis, Carsten Langrock, Martin M. Fejer, and Alan E. Willner, "Demonstration of reconfigurable optical generation of higher-order modulation formats up to 64 QAM using optical nonlinearity," Opt. Lett. 38, 3350-3353 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-17-3350

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