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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 1 — Jan. 1, 2010
  • pp: 13–15

Linewidth-tolerant real-time 40 - Gbit s 16-QAM self-homodyne detection using a pilot carrier and ISI suppression based on electronic digital processing

Moriya Nakamura, Yukiyoshi Kamio, and Tetsuya Miyazaki  »View Author Affiliations


Optics Letters, Vol. 35, Issue 1, pp. 13-15 (2010)
http://dx.doi.org/10.1364/OL.35.000013


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Abstract

We experimentally demonstrate linewidth-tolerant real-time 40 - Gbit s ( 10 - Gsymbol s ) 16-quadrature amplitude modulation. We achieved bit-error rates of < 10 9 using an external-cavity laser diode with a linewidth of 200 kHz and < 10 7 using a distributed-feedback laser diode with a linewidth of 30 MHz , thanks to the phase-noise canceling capability provided by self-homodyne detection using a pilot carrier. Pre-equalization based on digital signal processing was employed to suppress intersymbol interference caused by the limited-frequency bandwidth of electrical components.

© 2009 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 8, 2009
Revised Manuscript: October 29, 2009
Manuscript Accepted: November 17, 2009
Published: December 18, 2009

Citation
Moriya Nakamura, Yukiyoshi Kamio, and Tetsuya Miyazaki, "Linewidth-tolerant real-time 40-Gbit/s 16-QAM self-homodyne detection using a pilot carrier and ISI suppression based on electronic digital processing," Opt. Lett. 35, 13-15 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-1-13

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